304L Stainless Hlau Yeeb|Seamless vs Welded Supplier
1. Hom: Seamless, Welded
2. OD: 1/2 "-48"
3. Thickness: SCH5-SCHXXS
4. Ntev: 0-12M, Customized
5. Txheej Txheem: Kub / Cold Rolled, Kub ua haujlwm, Txias kos
Zhengzhou Huitong Pipeline Equipment Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm 304L Stainless Hlau Yeeb Nkab|Seamless vs Welded Supplier nyob rau hauv Suav teb. Peb sov siab txais tos koj mus yuav peb 304L Stainless Hlau Yeeb|Seamless vs Welded Supplier. Peb lub Hoobkas kuj lees txais cov kev txiav txim customized. Thov pub dawb kom txaus siab rau peb cov nqi sib tw thiab kev pabcuam zoo heev.
304L Stainless Hlau Yeeb Nkab Nqe 2026|Qhov ntau thiab tsawg, Teem sijhawm, Tus neeg siv khoom & Tus nqi
304L stainless hlau yeeb nkab nqe nqi ntawm $ 1.50 txog $ 4.50 ib kg hauv 2026. Paub txog nws cov ntsiab lus qis - carbon, nws muaj superior weldability thiab tsis kam mus rau intergranular corrosion. Nws yog qhov kev xaiv zoo tshaj plaws rau petrochemical, tshuaj ua haujlwm, kev lag luam zaub mov, kev siv dej.
304L Stainless Hlau Yeeb Nkab Nqe Sau
| Hom | Loj | Nqe (USD) |
| 304L Seamless yeeb nkab | 1/2"–24" | $3,200–$4,500/ton |
| 304L welded yeeb nkab | 1/2"–48" | $2,300–$3,600/ton |
| 304L Polished yeeb nkab | 1"–12" | $3.5–$8.5/kg |
| 304L Muaj yeeb nkab | SCH 10 – SCH 160 | $2,500–$4,200/ton |
Tus nqi tseem ceeb: Raw khoom tsis hloov pauv (Ni/Cr Performance index), seamless tiv thaiv welded manufacturing txoj kev, nruj thib peb - tog xeem yuav tsum (NACE, PMI, UT), thiab customized txiav lengths.
304L yeeb nkab yog dab tsi?
304L stainless hlau yeeb nkab yog ib qho qis - carbon austenitic stainless hlau yeeb nkab tsim los ntawmASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASME SA312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASME SA312 / ASTM A312 / ASTM A312 / ASTM A312 / ASME SA312)cov qauv rau seamless thiab welded daim ntaub ntawv.
Cov khoom siv yog qhov qis -carbon version ntawm 304 stainless hlau. Cov ntsiab lus carbon yog txwv rau qhov siab tshaj plaws0.030%, uas txo chromium carbide nag lossis daus thaum vuam.
cev 304ltiv thaiv corrosion hauv zos thaum vuam, tsawg carbide nag lossis daus, thiab tsawg intergranular corrosion.UNS S30403cov khoom tuaj yeem ncav cuag 870 degree. Peb muaj seamless thiab welded yeeb nkab.Stainless hlau seamless yeeb nkabyog kos los ntawm ib tug billet thiab muaj lub zog siab bearing muaj peev xwm.Stainless hlau welded yeeb nkab yog tsim nyog rau txoj kab uas hla loj xav tau thiab muaj tus nqi qis dua.
Cov ntawv thov ib txwm muaj xws li:
- Chemical processing piping
- Cov kav dej thiab dej haus
- Cov cuab yeej siv tshuaj
- Kub exchangers
- Kev kho dej
- Architectural kav dej
- Roj & roj auxiliary systems
Zhengzhou Huitong Pipeline Equipment Co., Ltd. Daim ntawv pov thawj:
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Thib peb-Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Cov ntsiab lus tseem ceeb:
- 304L stainless hlau yeeb nkab belongs rau 18Cr-8Ni austenitic stainless hlau tsev neeg.
- Cov ntsiab lus carbon tsawg (tsawg dua lossis sib npaug li 0.030%) txo qis carbide nag lossis daus thaum vuam.
- 304L yeeb nkab tsis xav tau tom qab-weld kho cua sov hauv feem ntau cov ntawv thov.
- Zoo heev corrosion kuj nyob rau hauv dej tshiab, atmospheric, zaub mov-qib, thiab ib puag ncig tshuaj lom neeg.
- Muaj raws liseamless yeeb nkab, welded yeeb nkab, ERW yeeb nkab, EFW yeeb nkab, sanitary yeeb nkab, thiab precision raj.
- Cov qauv uas muaj xws liASTM A312 TP304L, ASTM A213 TP304L, ASTM A269 TP304L, ASTM A789 / A790 (nyob ntawm cov kev xav tau tshwj xeeb).
- Piv nrog 316L stainless hlau yeeb nkab, 304L muaj cov ntsiab lus molybdenum qis dua thiab cov tshuaj chloride tsis muaj zog.
ASTM A312 TP304L Tube Specification
| Specifications | ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358 |
| Qhov ntev | ASTM, ASME thiab API |
| Qhov ntau thiab tsawg | 1/2 "NB - 48" NB |
| ERW Pipes | 1/2 "NB - 24" NB |
| EFW Pipes | 6" NB - 100" NB |
| Tshwj xeeb hauv | Loj Diameter Loj |
| Teem caij | TSW 10 SCH 40 STD SCH 80 SCH 160 SCH 120 SCH 140 XXS |
| Hom | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
Tshuaj muaj pes tsawg leeg ntawm ASTM A312 TP304L Stainless hlau yeeb nkab
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.030 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.00 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.00 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 |
| Chromium (Cr) | 18.00–20.00 |
| Nickel (Ni) | 8.00–12.00 |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10 |
Mechanical Properties ntawm 304L Stainless Hlau Yeeb Nkab
| Khoom | Yam tsawg kawg nkaus |
| Tensile zog | 485 MPa (70 ksi) |
| Yield zog | 170 MPa (25 ksi) |
| Elongation | 35% |
| Hardness Rockwell B | Tsawg dua lossis sib npaug li 90 HRB |
Lub cev muaj zog ntawm 304L Stainless Hlau
| Qhov ntom | 7.93 g/m² |
| Melting Range | 1400-1450 degree |
| Thermal conductivity | 16.2 W/m·K |
| Hluav taws xob Resistivity | 0.73 μΩ·m |
| Elastic Modulus | 193 gp ua |
| Thermal Expansion | 17.2 μm / m· degree |
304L Stainless hlau sib npaug
| Qib | UNS No | Laus British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | Tsis muaj | Lub npe | ||||
| 304L | UNS S30403 | 304S11 | 58E | 1.4306 1.4307 | X5CrNi18-10 | 2332 | SUS 304 L |
ALLOY 304L Stainless Hlau Yeeb Nkab Dimensions
| DN | NPS | OD (mm) sab nraud txoj kab uas hla |
Sch5S (hauv) |
Sch10S (hauv) |
Sch40 S (hauv) |
Sch80S (hauv) |
Sch160S (hauv) |
| 6 | 1/8 | 10.3 | 0.049 | 0.068 | 0.095 | 0.124 | |
| 8 | 1/4 | 13.7 | 0.065 | 0.088 | 0.119 | 0.145 | |
| 10 | 3/8 | 17.1 | 0.065 | 0.091 | 0.126 | 0.158 | |
| 15 | 1/2 | 21.3 | 0.065 | 0.083 | 0.109 | 0.147 | 0.188 |
| 20 | 3/4 | 26.7 | 0.065 | 0.083 | 0.113 | 0.154 | 0.219 |
| 25 | 1 | 33.4 | 0.065 | 0.109 | 0.133 | 0.179 | 0.250 |
| 32 | 1 1/4 | 42.2 | 0.065 | 0.109 | 0.140 | 0.191 | 0.250 |
| 40 | 1 1/2 | 48.3 | 0.065 | 0.109 | 0.145 | 0.200 | 0.281 |
| 50 | 2 | 60.3 | 0.065 | 0.109 | 0.154 | 0.218 | 0.344 |
| 65 | 2 1/2 | 73 | 0.083 | 0.120 | 0.203 | 0.276 | 0.375 |
| 80 | 3 | 88.9 | 0.083 | 0.120 | 0.216 | 0.300 | 0.438 |
| 90 | 3 1/2 | 101.6 | 0.083 | 0.120 | 0.226 | 0.318 | |
| 100 | 4 | 114.3 | 0.083 | 0.120 | 0.237 | 0.337 | 0.531 |
| 125 | 5 | 141.3 | 0.109 | 0.13 | 0.258 | 0.375 | 0.625 |
| 150 | 6 | 168.3 | 0.109 | 0.13 | 0.280 | 0.432 | 0.719 |
| 200 | 8 | 219.1 | 0.109 | 0.148 | 0.322 | 0.500 | |
| 250 | 10 | 273.1 | 0.13 | 0.165 | 0.365 | 0.500 | |
| 300 | 12 | 323.9 | 0.156 | 0.18 | 0.375 | 0.500 | |
| 350 | 14 | 355.6 | 0.156 | 0.188 | 0.375 | 0.500 | |
| 400 | 16 | 406.4 | 0.165 | 0.188 | 0.375 | 0.500 | |
| 450 | 18 | 457 | 0.165 | 0.188 | 0.375 | 0.500 | |
| 500 | 20 | 508 | 0.188 | 0.218 | 0.375 | 0.500 | |
| 550 | 22 | 559 | 0.188 | 0.218 | |||
| 600 | 24 | 610 | 0.218 | 0.250 | 0.375 | 0.5 | |
| 650 | 26 | 660 | |||||
| 700 | 28 | 711 | |||||
| 750 | 30 | 762 | 0.25 | 0.312 |
SS 304L Teem caij 10 Stainless Hlau Yeeb Nkab Loj
| Phab ntsa Thickness | Qhov ntau thiab tsawg (OD) |
| 0.01 | 1/16" , 1/8" , 3/16" |
| 0.02 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| 0.012 | 1/8" |
| 0.016 | 1/8" , 3/16" |
| 0.028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| 0.035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| 0.049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| 0.065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| 0.083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| 0.095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| 0.109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| 0.12 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| 0.125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| 0.134 | 1" |
| 0.25 | 3" |
| 0.375 | 3 1/2" |
Stainless hlau 304L Tube kam rau ua
| OD | Ua siab ntev |
| 4 rau 35mm | +/- 0.08mm |
| 35 rau 38mm | +/- 0.15mm |
| 38 mus rau 60 mm | +/- 0.20mm |
| 60 thiab siab dua | +/- 0.25mm |
SS 304L Pipe Weight Chart
Luj Daim Ntawv Teev Npe 5, 5s, 10, 10s, 20, 40, 80, 120, 180
| Lub npe ntawm txoj kab uas hla | O/D | Nominal Phab Ntsa Thickness | ||||||||||||||||||
| DIA | SCH 5 S | SCH 5 | SCH 10 S | SCH.10 | SCH.20S | SCH 30 | SCH 40 S | SCH 40 | SCH 60 | |||||||||||
| (A) | (B) | Meter MM | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr | Phab Thk | Nyhav Kg/Mtr |
| 6 | 1/8 | 10.3 | 1 | 0.23 | 1.2 | 0.27 | 1.5 | 0.33 | 1.73 | 0.37 | ||||||||||
| 8 | 1/4 | 13.7 | 1.2 | 0.37 | 1.65 | 0.49 | 2 | 0.58 | 2.24 | 0.64 | ||||||||||
| 10 | 3/8 | 17.2 | 1.2 | 0.47 | 1.65 | 0.63 | 2 | 0.74 | 2.31 | 0.87 | ||||||||||
| 15 | 1/2 | 21.3 | 1.65 | 0.01 | 1.65 | 0.81 | 2.11 | 1.02 | 2.11 | 1.02 | 2.5 | 1.15 | 2.77 | 1.29 | ||||||
| 20 | 3/4 | 26.7 | 1.65 | 1.03 | 1.65 | 1.03 | 2.11 | 1.3 | 2.11 | 1.3 | 2.5 | 1.49 | 2.87 | 1.71 | ||||||
| 25 | 1 | 33.4 | 1.65 | 1.31 | 1.65 | 1.31 | 2.77 | 2.13 | 2.77 | 2.13 | 3 | 2.24 | 3.38 | 2.54 | ||||||
| 32 | 11/4 | 24.2 | 1.65 | 1.67 | 1.65 | 1.67 | 2.77 | 2.73 | 2.77 | 2.73 | 3 | 2.9 | 3.56 | 3.44 | ||||||
| 40 | 11/2 | 48.3 | 1.65 | 1.93 | 1.65 | 1.93 | 2.77 | 3.16 | 2.77 | 3.16 | 3 | 3.35 | 3.68 | 4.11 | ||||||
| 50 | 2 | 60.3 | 1.65 | 1.93 | 1.65 | 2.42 | 2.77 | 3.99 | 2.77 | 3.99 | 3.5 | 4.9 | 3.91 | 5.52 | ||||||
| 65 | 21/2 | 73 | 2.11 | 3.75 | 2.11 | 3.75 | 3.05 | 5.34 | 3.05 | 5.34 | 3.5 | 6 | 5.16 | 8.77 | ||||||
| 80 | 3 | 88.9 | 2.11 | 4.59 | 2.11 | 4.59 | 3.05 | 6.56 | 3.05 | 6.56 | 4 | 8.37 | 5.49 | 11.47 | ||||||
| 90 | 31/2 | 101.6 | 2.11 | 5.25 | 2.11 | 5.25 | 3.05 | 7.53 | 3.05 | 7.53 | 4 | 9.62 | 5.74 | 13.78 | ||||||
| 100 | 4 | 114.3 | 2.11 | 5.93 | 2.11 | 5.93 | 3.05 | 8.5 | 3.05 | 8.5 | 4.5 | 12.18 | 6.02 | 6.32 | ||||||
| 125 | 5 | 141.3 | 2.77 | 9.61 | 2.77 | 9.61 | 3.4 | 11.74 | 3.43 | 11.74 | 5 | 16.8 | 6.55 | 2210 | ||||||
| 150 | 6 | 168.3 | 2.77 | 11.47 | 2.77 | 11.47 | 3.4 | 14.04 | 3.43 | 14.04 | 5.5 | 22.08 | 7.11 | 28.69 | ||||||
| 200 | 8 | 219.1 | 2.77 | 15 | 2.77 | 15 | 3.76 | 20.77 | 3.76 | 20.27 | 6.35 | 33.82 | 7.04 | 37.38 | 8.18 | 43.2 | 10.81 | 53.9 | ||
| 250 | 10 | 273.1 | 3.4 | 22.95 | 3.4 | 22.95 | 4.19 | 28.2 | 4.19 | 28.2 | 6.35 | 42.41 | 7.8 | 51.81 | 9.27 | 61.22 | 12.2 | 82.8 | ||
| 300 | 12 | 323.9 | 3.96 | 31.72 | 4.19 | 33.6 | 4.57 | 36.54 | 4.57 | 36.54 | 6.35 | 50.48 | 8.38 | 66.2 | 9.53 | 75.01 | 10.31 | 80.94 | 14.27 | 110.62 |
| 350 | 14 | 355.6 | 3.96 | 34.86 | 4.78 | 41.99 | 6.35 | 55.53 | 7.92 | 68.95 | 9.53 | 82.58 | 9.53 | 82.58 | 11.13 | 96 | 15.06 | 128.42 | ||
| 400 | 16 | 406.4 | 4.19 | 42.2 | 4.78 | 48.07 | 6.35 | 63.61 | 7.92 | 79.03 | 9.53 | 94.7 | 9.53 | 94.7 | 12.7 | 125.2 | 16.66 | 162.59 | ||
| 450 | 18 | 457.2 | 4.19 | 47.46 | 4.78 | 54.15 | 6.35 | 71.69 | 7.92 | 89.1 | 11.13 | 124.32 | 9.53 | 106.83 | 14.27 | 158.27 | 19.05 | 209 | ||
| 500 | 2C | 508 | 4.78 | 60.23 | 5.54 | 69.7 | 6.35 | 79.76 | 9.53 | 118.93 | 12.7 | 157.51 | 9.53 | 118.9 | 15.06 | 185.89 | 2062 | 251.65 | ||
| 550 | 22 | 558.8 | 4.78 | 65.95 | 5.54 | 76.75 | 6.35 | 87.84 | 9.53 | 131.07 | 12.7 | 173.66 | 9.53 | 131.07 | 15.88 | 216.04 | 22.23 | 298.55 | ||
| 600 | 24 | 609.6 | 5.54 | 83.8 | 6.35 | 95.92 | 6.35 | 95.92 | 9.53 | 143.2 | 14.27 | 212.72 | 9.53 | 143.2 | 17.45 | 258.74 | 24.59 | 360.21 | ||
| 650 | 26 | 660.4 | 7.92 | 129.4 | 12.7 | 205.97 | 9.53 | 155.32 | ||||||||||||
| 700 | 28 | 711.2 | 7.92 | 139.47 | 12.7 | 222.13 | 15.88 | 276.48 | 9.53 | 167.44 | ||||||||||
| 750 | 3C | 762 | 6.35 | 120.15 | 7.92 | 149.55 | 7.92 | 149.55 | 12.7 | 238.28 | 15.88 | 296.68 | 9.53 | 179.56 | ||||||
| 800 | 32 | 812.8 | 7.92 | 159.62 | 12.7 | 254.44 | 15.88 | 316.88 | 9.53 | 191.69 | 17.48 | 348.11 | ||||||||
| 850 | 34 | 863.6 | 7.92 | 169.64 | 12.7 | 270.5 | 15.88 | 336.96 | 9.53 | 203.74 | 17.48 | 370.22 | ||||||||
| 900 | 36 | 914.4 | 7.92 | 179.77 | 12.7 | 286.75 | 15.88 | 357.28 | 9.53 | 215.93 | 19.05 | 427.09 | ||||||||
Stainless hlau 304L yeeb nkab siab ntsuas
| cev OD | Phab ntsa Thickness ntawm Yeeb Nkab / Tube (inch) | |||||||
| (hauv.) | 0.028 | 0.035 | 0.049 | 0.065 | 0.083 | 0.095 | 0.109 | 0.12 |
| Ua haujlwm siab (psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
General Corrosion Resistance
304L tsim ib qho ruaj khov chromium oxide passive zaj duab xis:Cr + O₂ → Cr₂O₃ txheej tiv thaiv
Kub kub ntau yam
| Qhov kub thiab txias | Kev ua tau zoo |
| -196℃rau 400 degree | Zoo heev |
| 400-500 degree | Feem ntau txais |
| 500-800 degree | Kev txo lub zog thiab kev pheej hmoo ntawm kev nkag siab |
| >800 degree | Tsis pom zoo rau cov kav dej siab |
Kwv yees qhov kub thiab txias: 450-850 degree
Weldability thiab Fabrication
SS 304L Seamless Yeeb Nkab Fabrication Txheej Txheem Hoobkas
1. Kev npaj Billet: 304L steel ingot yog kub dov / forged rau hauv round billets
2. Perforation: Tom qab cua sov, ib tug perforator yog siv los ua ib tug hollow ntxhib raj
3. Rolling: kub dov (txo txoj kab uas hla / txo phab ntsa) lossis txias dov (precision forming)
4. Sizing / straightening
5. Kev kho cua sov: kev kho kev daws teeb meem (quenching ntawm 1010-1150 degree) los kho corrosion kuj
6. Kev kho deg: pickling (tshem tawm oxide nplai), sandblasting lossis polishing
7. Kev tshuaj xyuas: hydrostatic test, eddy tam sim no flaw detection, loj/composition detection
304L Welded Yeeb Nkab Txheej Txheem
Txheej txheem:304L stainless hlau kauj → Slitting → Forming → TIG / ERW / laser vuam → tshuaj annealing → Pickling → Test
Vuam txoj kev zoo tshaj plaws:
Thaum teb -vuam austenitic stainless hlau, cov qauv qib zoo li 304 tuaj yeem raug kev txom nyem los ntawm "sensitization" (chromium carbide nag lossis daus ntawm cov ciam teb ntawm 425℃thiab 815℃). Siv 304L nrog nws cov tswj max 0.03% carbon mitigates qhov kev phom sij no, khaws cia kev sib koom ua ke tsis tas yuav tsum tau them tus nqi kim tshaj -weld solution annealing.
Cov txheej txheem welding feem ntau:
| Vuam txheej txheem | Daim ntawv thov |
| GTAW / TIG | Hauv paus hla, siab - zoo yeeb nkab vuam |
| GMAW / MIG | Kev tsim khoom vuam |
| SMAW | Kev teeb tsa teb |
| SAW | Loj txoj kab uas hla welded yeeb nkab |
| Orbital TIG | Pharmaceutical thiab semiconductor piping |
Vuam Filler Hlau
| Khoom siv hauv paus | Pom zoo Filler |
| 304l cev | TSI 308L |
| 304L rau 304L | TSI 308L |
| 304-316 hli | Qauv: ER316L |
Yam TIG welding parameters:
| Parameter | Pom zoo Range |
| Vuam tam sim no | 60–120 A |
| Tiv thaiv Gas | 99.99% Argon |
| Gas Flow | 8-15L / min |
| Interpass Temperature | Tsawg dua lossis sib npaug li 150 degree |
| Kub Input | 0.5-1.5 kJ / hli |
Qhov twg yog qhov zoo dua 304L lossis 316?
| Yam | 304L | 316 |
| Kev sib xyaw | 18% Cr, 8% Ni, Tsawg dua lossis sib npaug rau 0.03% C (tsawg carbon) | 16% Cr, 10% Ni, 2-3% Mo (molybdenum), Tsawg dua los yog sib npaug rau 0.03% C |
| Corrosion Resistance | Zoo nyob rau hauv ib puag ncig; tsis zoo tiv thaiv chlorides | Superior tiv thaiv chlorides, acids, thiab marine ib puag ncig vim molybdenum |
| Mechanical Properties | Tensile zog: 485 MPa | Tensile zog: 515 MPa |
| Tawm zog: 170 MPa | Tawm zog: 205 MPa |
304L vs 304L vs 316L
| Khoom | 304L | 304 | 316L |
| Cov pa roj carbon | Tsawg (0.03% max) | Standard (0.08% max) | Tsawg (0.03% max) |
| Weldability | Zoo heev | Nruab nrab | Zoo heev |
| Corrosion Resistance | Nruab nrab | Nruab nrab | Siab (nrog Moly) |
| Nqe | Puag | Puag | 20-30% siab dua |
Dab tsi yog qhov txawv ntawm 304 thiab 304L stainless hlau yeeb nkab hauv kev siv welded?
304L (UNS S30403) yog ib qho ntxiv -tsawg carbon version ntawm 304 stainless hlau, nrog rau cov ntsiab lus siab tshaj carbon txwv nruj rau 0.030%. Cov yam ntxwv no tseem ceeb heev thaum lub sij hawm vuam, raws li nws zoo tiv thaiv chromium carbide nag lossis daus nyob rau hauv lub tshav kub- cuam tshuam cheeb tsam (HAZ), yog li ntawd kiag li tsis txhob intergranular corrosion-txawm tias thaum welding thicker yeeb nkab phab ntsa- tsis tas yuav tsum tau post-weld annealing.
Tiag -Kev Kawm Txuj Ci Ntiaj Teb
Vim li cas kuv cov yeeb nkab steel hlau tsis xeb tom qab ob peb lub hlis?
Thaum welding stainless hlau kav, peb yuav tsum tau xaiv qhov tsim nyog vuam consumables los tiv thaiv weld corrosion. Xws li, 304L "L" sawv cev rau "Ntxiv-Cov pa roj carbon tsawg," thiab nws yog qhov zais cia los tiv thaiv carbide nag lossis daus thaum lub sijhawm vuam. Hauv kev lag luam xws li petrochemical, tshuaj ua haujlwm, thiab kev kho dej, yog tias siv 304 rau welded pob qij txha feem ntau ua rau zais, ntxov ntxov intergranular corrosion.
304L Weld Seam Material Failure & Corrosion Analysis:
Ib qho kev ua tsis tiav ntxov ntxov hauv cov txheej txheem cov nroj tsuag cuam tshuam nrog kev sib tsoo intergranular nyob ib sab ntawm cov hlaws dai thaum cov hlau tsis raug muab los yog tsis yog - qis - cov pa roj carbon hauv paus kav. Kev qhia txog TP304L ua ke nrog qhov sib piv qis- carbon electrodes (xws li, E308L) zam kev sib tsoo.
"304L vs 316L: Dab tsi stainless hlau yeeb nkab yuav kuv yuav?"
| Qhov xwm txheej | Pom zoo |
| Dej tshiab | 304L |
| Kev ua zaub mov | 304L |
| Sab hauv tsev tshuaj tsob nroj | 304L |
| Marine ib puag ncig | 316L |
| Coastal chemical cog | 316L |
| Dej hiav txwv | TIAB SA 2205 |
304L stainless hlau kav puas tuaj yeem siv kev nyab xeeb hauv kev tu cev thiab tshuaj hloov cov kua dej?
Yog lawm. Ua tsaug rau nws qhov zoo tshaj plaws ua tiav, tsis yog - tshuaj lom thiab tsis yog - paug qhov xwm txheej, thiab cov khoom siv zoo tshaj plaws, 304L yog cov khoom siv zoo tshaj plaws rau cov kav dej aseptic hauv kev lag luam tshuaj, khoom noj khoom haus, khoom noj siv mis, thiab dej haus.
"Puas 304L stainless yeeb nkab tuaj yeem welded yam tsis muaj kev kho cua sov?"
Yog lawm. Rau feem ntau cov kav dej: 304L tsis xav tau kev kho cua sov tom qab vuam.
Dab tsi yog tus qauv ASTM specifications thiab kev ntsuas siab rau 304L stainless hlau welded thiab seamless kav?
304L stainless hlau piping feem ntau ua raws li ASTM A312 (seamless thiab welded yeeb nkab) thiab ASTM A358 (loj-inch electric- fusion-welded yeeb nkab) specifications. Dimensional tolerances yog nruj me ntsis tswj raws li ASME B36.19, thiab cov kav dej yog dav siv rau kev thauj cov kua dej ntawm ambient los yog nruab nrab kub thiab tsis tshua muaj siab.
"Vim li cas pawg neeg yuav khoom ntsib kev tsis sib haum xeeb thaum cov neeg muag khoom muab ob lub- ntawv pov thawj 304/304L kav dej, thiab nws puas cuam tshuam rau kev ntsuas siab?"
Dual- ntawv pov thawj 304/304L piping ua tau raws li ob qho tib si lub zog xav tau ntawm 304 thiab qis- carbon corrosion kuj yuav tsum tau ntawm 304L. Nyob rau hauv chav tsev kub, nws qhov kev ntsuas siab zoo ib yam li tus qauv 304. Txawm li cas los xij, thaum muab cov khoom siv, Cov Khoom Siv Xeem Ntawv Pov Thawj (MTC / EN 10204 3.1) yuav tsum tau ua tib zoo xyuas kom ntseeg tau tias ua tau raws li tag nrho cov tshuaj muaj pes tsawg leeg specifications.
Kev Sib Piv Lub Neej Kev Pabcuam: Siab -Frequency Welded vs. Seamless 304L Yeeb Nkab hauv Chemical Utility Systems
Hauv feem ntau cov qauv siv hluav taws xob siv hluav taws xob:
- Siab - zaus welded 304L yeeb nkab: 15-30 xyoo
- Seamless 304L yeeb nkab: 20-40 xyoo
Cov txiaj ntsig ntawm Kev Kho Hniav sib txawv ntawm Acid thiab Alkali Resistance ntawm 304L Piping
| Kev kho saum npoo | Common Standard / Surface Finish | Kev ntxhib los mos (Ra) | Corrosion Resistance nyob rau hauv Acid & Alkali Service |
| Kub Rolled Nto / Mill tiav | No.1 Tiav | 3.0–10 μm | Kwv tij txom nyem |
| Mechanical Polishing | No.4 / No.6 Tiav | 0.2–0.8 μm | Zoo |
| 320 Grit Belt Polishing | Industrial Polished tiav | 0.4m ib | Zoo heev |
| Pickling & Passivation | Pickled thiab Passivated Nto | Tsis muaj kev hloov loj hauv roughness | Zoo heev |
| Electropolishing (EP) | Electropolished tiav | <0.2 μm | Superior |
| Internal Mirror Polishing | Pharmaceutical / High Purity Qib tiav | <0.1 μm | Zoo heev |
"Puas yog 304L stainless hlau yeeb nkab tsim nyog tus nqi ntxiv tshaj tus qauv carbon steel rau cov kab kho dej?"
Cov lus teb yog nyob ntawm dej chemistry, ib puag ncig kev ua haujlwm, kev saib xyuas lub tswv yim, thiab xav tau kev pab lub neej.
Rau ntau daim ntawv thov kev kho dej, 304L stainless hlau yeeb nkab tuaj yeem muab kev pab cuam lub neej ntev dua thiab qis dua tus nqi, txawm tias tus nqi pib yuav siab dua. Txawm li cas los xij, rau cov dej uas tsis yog -corrosive dej nrog cov txheej txheem tiv thaiv kom zoo, carbon steel tseem yuav yog qhov kev xaiv pheej yig dua.
"Lub mills thoob ntiaj teb twg muab ntawv pov thawj PED/ASME SA312 304L welded kav nrog lub sij hawm luv luv?"
Rau EPC tej yaam num, tshuaj nroj tsuag, dej kho tshuab, thiab siab piping daim ntaub ntawv, buyers feem ntau nrhiav ASTM A312 / ASME SA312 TP304L welded kav nrog:
- PED 2014/68/EU ua raws
- EN 10204 3.1 / 3.2 MTC
- ISO 9001 Qhov system zoo
- 100% kev soj ntsuam vuam (ECT / UT / RT nyob ntawm qhov yuav tsum tau ua)
- Pickling & passivation
- Lub sijhawm luv luv los ntawm cov khoom lag luam lossis cov sijhawm tsim khoom
- Kev xaiv tus neeg muag khoom zoo tshaj plaws nyob ntawm seb qhov tseem ceeb tshaj plaws yog kev xa khoom sai, qhov project loj pom zoo keeb kwm, lossis tus nqi sib tw.
Raws li cov qauv:
- ASTM A312 / ASME SA312 (Seamless thiab Welded)
- ASTM A269 / ASME SA269 (Seamless thiab Welded)
- ASTM A213 / ASME SA213 Seamless
- ASTM A249 / ASME SA249 (Welded)
FAQ:
Q: Tus nqi ntawm 304L stainless hlau yeeb nkab hauv xyoo 2026 yog dab tsi?
A:304L stainless hlau yeeb nkab nqi yog kwv yees li ntawm $ 1,300 txog $ 3,500 ib tuj nyob ntawm cov yeeb nkab loj, phab ntsa thickness, thiab kev tsim khoom.
Q: Vim li cas thiaj xaiv 304L dhau tus qauv 304 yeeb nkab?
A: 304L muaj cov pa roj carbon tsawg, tiv thaiv kev puas tsuaj (intergranular corrosion) thaum lub sij hawm vuam, ua kom muaj kev pab cuam lub neej ntev hauv cov qauv welded.
Q: Puas yog 304L yeeb nkab haum rau dej hiav txwv?
A: Tsis yog, rau ib puag ncig marine,316Llos yogTIAB SA 2205raug pom zoo vim muaj cov tshuaj chloride ntau dua.
Q: Tus nqi ntawm 304L piv rau 316L li cas?
A: 304L feem ntau yog 20-30% pheej yig dua li 316L, raws li 316L muaj Molybdenum uas ua rau cov nqi nce ntxiv.
Q: Koj puas muab daim ntawv pov thawj zeb xeem (MTC)?
A: Yog lawm, tag nrho peb cov kav dej 304L tuaj nrog daim ntawv pov thawj EN 10204 3.1 tag nrho.
Q: Lub sij hawm ua lub sij hawm rau kev cai yeeb nkab qhov ntev yog dab tsi?
A: Rau cov khoom lag luam txheem, peb xa tuaj hauv 7 hnub. Kev cai ntau lawm txawv ntawm 20-40 hnub.
Q: Puas muaj Kev Pabcuam Qauv?
Q: Yam tsawg kawg nkaus Order Quantity yog dab tsi?
Q: Yuav ntim cov khoom li cas?
Q: Lub teb chaws xa tawm
Q: Peb puas tuaj yeem tuaj xyuas koj lub Hoobkas?
A: Tau kawg, koj ib txwm txais tos!
Hais txog Zhengzhou Huitong Pipeline Equipment Co., LTD.
HT PIPE yog ib tug zoo-paub stockist thiab exporter. Peb yog cov khoom siv stainless / carbon / npib tsib xee alloy khoom xa khoom nrog 15+ kev xa tawm. Peb tsis tsuas yog muab cov kav dej, phaj, puag ncig, tab sis kuj yog cov yeeb nkab fittings, flanges, thiab lwm yam. Tiv tauj peb kom paub ntau ntxiv thiab cov nqi dawb.
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Thib peb-Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Author: Chloe Pu
5+ Xyoo ntawm Kev Tshaj Lij Tshaj Lij Tshaj Tawm hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Yim Hli 1, 2026 (Lub Sijhawm Beijing)
Cim npe nrov: 304L Stainless Hlau Yeeb|Seamless vs Welded Supplier, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
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