ASME SA 479 SS 304 Round Bar
Hom: Round bar, Square bar, Hex bar, tiaj tus bar
Txoj kab uas hla: 5-500mm
Ntev: 0-12m
Kev kam rau siab: H7 H9 H10 H11
Txuj: SUS, AISI, DIN
Zhengzhou Huitong Pipeline Equipment Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm ASME SA 479 SS 304 Round Bar hauv Suav teb. Peb zoo siab tos txais koj los yuav peb ASME SA 479 SS 304 Round Bar. 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.
ASTM SA479 304 Round Bar Nqi 2026|SS304 Qws Nyhav & Hoobkas Nqe
ASTM SA 479 304 stainless hlau puag ncig tuav muaj kev tiv thaiv corrosion zoo heev thiab weldability. Nqe yog nruab nrab$1.80–$4.50/kg hauv 2026, nyob ntawm kev lag luam volatility thiab zeb keeb kwm. Cov kab no tau siv dav hauv cov hlab ntsha siab, cov khoom siv tshuaj, kev ua zaub mov, roj & roj.
304 stainless hlau puag ncig bar nqe & Tus nqi ntsuas (2026)
| Txoj kab uas hla | Daim ntawv thov | Tus nqi ntau (USD / kg) | Kwv yees li. Ton Nqe |
| 6-20 hli | Machining qhov chaw, fasteners | $2.2–$5.0/kg | $2,200–5,000/ton |
| 22-50 hli | Shafts, fittings, li qub | $2.0–$4.5/kg | $2,000–4,500/ton |
| 55-100 hli | Cov cuab yeej siv siab | $1.9–$4.2/kg | $1,900–4,200/ton |
| 110-200 hli | Forging kev siv | $2.1–$4.8/kg | $2,100–4,800/ton |
| 200+ hli | Hnyav forged bars | $1.8–$5.5/kg | $2,800–5,500/ton |
Bulk order (>5 tons): tus nqi qis dua
Cov ntsiab lus tseem ceeb:
- Khoom Qib:SA479 Hom 304 / UNS S30400
- Txheem:ASME SA479 / ASTM A479 Cov Lus Qhia
- Khoom siv:Austenitic stainless hlau round bar
- Qib sib npaug:AISI 304, EN 1.4301, JIS SUS304
- Lub ntsiab zoo:Zoo heev corrosion kuj, yooj yim fabrication, yig nqi
- Yam Kev Pabcuam Kub Kub:Mus txog kwv yees li 870℃kev pabcuam cuam tshuam
- Cov Qauv:Ci bar, dub bar, peeled bar, centerless av bar
- Main Industries:Roj & roj, tshuaj ua haujlwm, khoom noj khoom haus, tshuaj, hluav taws xob tsim
304 Round Bar yog dab tsi?
304 round bar yog austenitic stainless hlau bar tsim raws liASME SA479 / ASTM A479 specification.ASTM A479 npog kub-tiav thiab txias-tiav stainless hlau tuav, suav nrog cov kab puag ncig, square bar, hex bars, thiab cov duab. Qib 304, "tus neeg ua haujlwm" ntawm tsev neeg austenitic, muab kev sib npaug ntawm 18% chromium thiab 8% npib tsib xee. Siv rau boilers, siab hlab ntsha, thiab cov khoom siv.
Hom qauv:
- ASTM A479 / ASME SA479 Cov Lus Qhia
- ASTM A276 (Kev siv dav dav stainless hlau)
- UNS S30400
- TS EN 1.4301
- DIN X5CrNi18-10
ASEM SA 479 304 Round Bar Specifcations
| Round Bar Hom | Kub-forging, Kub Rolled, Cold Drawn, Ci tiav thiab Dub Finsh Round Bar |
| Txuj | JIS, AISI, ASTM, GB, BS, DIN, EN |
| Txoj kab uas hla | 5-550 hli |
| Tolerances |
H9, H10, lossis H11 (customizable rau precision machining). |
| Ntev (m) | Random ntev 3-6m lossis ntev ntev lossis raws li kev thov. |
| Kev xa khoom | Kub Forging / Kub- dov + Annealing / Normalizing / Tempering / Quenching thiab Tempering / Solution / Aging / Slow Cooling |
| Ua siab ntev | +/- 0.2 hli |
| Nto | Bright Finish, Dub tiav, Sib Tsoo tiav, Roughing Finish. |
| Daim ntawv pov thawj | ISO9001m, ROHS, MTC lossis ua qhov kev xeem raws li cov neeg siv khoom xav tau. |
| Ntim | Bundles, Ntoo rooj plaub, pallets, nylon hnab los yog raws li cov neeg siv khoom xav tau |
| MOQ | 100 pcs |
| Lub sij hawm xa tuaj | 10-40 hnub nyob ntawm seb muaj pes tsawg |
| Cov nqe lus them nqi | T / T, L / C, Western union |
| Kev xa khoom | FOB Tianjin / Shanghai, CIF, CFR, thiab lwm yam |
| Daim ntawv thov | Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding thiab lwm yam |
| Lus hais | Lwm cov ntaub ntawv thiab cov duab kos yog muaj. |
SS304 Round Bar Mechanical Properties
| Tensile zog | Ntau dua lossis sib npaug li 515 MPa |
| Yield zog | Ntau dua lossis sib npaug li 205 MPa |
| Elongation | Ntau dua lossis sib npaug li 40% |
| Hardness | Tsawg dua lossis sib npaug rau 201 HB |
| Qhov ntom | 7.93 g/m² |
304 stainless hlau muab ductility zoo heev, ua rau nws haum rau machining, dabtsi yog khoov, forging, thiab vuam ua haujlwm.
304 stainless bar Chemical Composition
| Element | Maximum / Ntau (%) |
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.08 |
| Chromium (Cr) | 18.0–20.0 |
| Nickel (Ni) | 8.0–11.0 |
| Manganese (Mn) | Tsawg dua los yog sib npaug rau 2.0 |
| Silicon (Si) | Tsawg dua los yog sib npaug rau 1.0 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10 |
SS 304 Qws Standard Size:
| Loj (inch) | Kwv yees li. Txoj kab uas hla (mm) |
| 1/8" | 3.18mm 3 |
| 3/16" | 4,76mm ua |
| 1/4" | 6.35mm ib |
| 5/16" | 7, 94mm |
| 3/8" | 9 ,53mm |
| 1/2" | 12.70 mm |
| 5/8" | 15.88mm 3 |
| 3/4" | 19.05mm ib |
| 7/8" | 22.23mm 3 |
| 1" | 25.40 mm |
| 1-1/4" | 31.75mm 3 |
| 1-1/2" | 38.10 mm |
| 1-3/4" | 44.45mm 3 |
| 2" | 50.80mm 3 |
| 2-1/2" | 63.50mm 3 |
| 3" | 76.20mm 3 |
| 4" | 101.60 hli |
| 5" | 127.00 Nws |
| 6" | 152.40 hli |
| 8" | 203.20 hli |
304 stainless hlau pas nrig Corrosion Resistance
Qhov twg SA479 TP304 Ua tau zoo:
- Dej tshiab
- Atmospheric corrosion
- Khoom noj khoom haus acids
- Organic tshuaj
- Oxidizing acids
- Ib puag ncig kev lag luam me me
304 ss puag ncig bar Kub Ntau Yam
| Qhov kub thiab txias | Kev ua tau zoo |
| <400°C | Zoo heev |
| 400-600 degree | Txais tau nyob ntawm ib puag ncig |
| 600-870 degree | Muaj peev xwm tab sis rhiab heev yuav nce |
| >870 degree | Tsis pom zoo rau kev pabcuam txuas ntxiv |
Rau cov khoom siv welded ua haujlwm ntawm qhov kub siab, cov kws ua haujlwm feem ntau xaiv cov qib ruaj khov xws li 321 lossis 347H.
304 Round Bar vs 316 Round Bar
| Kev ua tau zoo | SA 479 304 | SA 479 316 |
| Chromium | 18% | 16–18% |
| Nickel | 8% | 10–14% |
| Molybdenum | Tsis muaj | 2–3% |
| Corrosion Resistance | Zoo | Zoo heev |
| Chloride Resistance | Nruab nrab | Siab dua |
| Nqe | qis | Siab dua |
| Kev thov Marine | Txwv tsis pub | Nyiam |
| Kev lag luam tshuaj | General | Ib puag ncig hnyav |
Xaiv 304 puag ncig bar thaum:
- Ib puag ncig yog ib txwm atmospheric kev pabcuam
- Kev tswj tus nqi yog qhov tseem ceeb
- Zoo weldability yuav tsum tau
Xaiv 316 puag ncig bar thaum:
- Muaj chloride raug
- Kev sib cuag dej hiav txwv tshwm sim
- Tshuaj tiv thaiv corrosion yog qhov tseem ceeb
Vuam thiab Fabrication
304 pas nrig tuaj yeem welded siv: TIG (GTAW); MIG (GMAW); SMAW; Laser vuam
| Base Hlau | Pom zoo Filler |
| 304-304 Ib | TSI 308L |
| 304-316 Ib | ER308L / ER316L |
| Kev pabcuam hnyav corrosion | Qauv: ER316L |
Yuav ua li cas kom tsis txhob Vuam Failures?
- Siv cov cuab yeej stainless hlau tshwj xeeb
- Tshem tawm cov pa roj carbon steel
- Ua pickling thiab passivation tom qab fabrication
Siv cov pa roj carbon tsawg 304L thaum vuam yog qhov dav, Cov tshuaj anneal tom qab vuam yog xav tau
304 steel pas nrig Machining Kev
304 yooj yim rau tshuab tab sis muaj kev ua haujlwm - hardening yam ntxwv.
Pom zoo:
- Cov cuab yeej ntse txiav
- Tsawg txiav ceev
- Cov coolant kom raug
Rau precision machining:
- Cold drawn bar yog nyiam
- Centerless polished tuav muab qhov zoo dua qhov tseeb
Machining 4140 Alloy Steel vs 304 Stainless Hlau
- 4140 feem ntau yooj yim rau tshuab vim nws tsis muaj kev ua haujlwm hnyav.
- 304 stainless hlau tsim ib txheej txheej hardened thaum txiav. Yog hais tias txiav tsis raug, cov cuab yeej sai poob sharpness.
Kuv pom tias, Kub dov 304 SS muaj 30,000 psi ntawm lub zog tawm los thiab Rockwell B75 nyob rau hauv hardness . 4140, ntawm qhov tod tes, muaj 60,000 psi ntawm yield zog nrog Rockwell B90 nyob rau hauv hardness.
"Vim li cas them nyiaj ntau dua rau 316L thaum 304 zoo li zoo sib xws?"
Cov lus teb nyob ntawm ib puag ncig.
Rau cov khoom siv sab hauv tsev, cov dej huv huv, thiab kev ua zaub mov, SA479 304 feem ntau muab kev pabcuam ntau xyoo.
Txawm li cas los xij, ntau qhov ua tsis tiav tshwm sim thaum 304 raug teeb tsa hauv:
- Cov nroj tsuag ntug hiav txwv
- Chloride- muaj cov tshuab dej txias
- Offshore platforms
Hauv cov ntawv thov no, kev kho dua tshiab rau 316L lossis Duplex 2205 feem ntau txo cov nqi ntawm lub neej.
Tus nqi optimization:
Rau cov ntawv uas tsis yog-tseem ceeb, txheeb xyuas yog tias txias- cov khoom tiav yog qhov tsim nyog tiag tiag, raws li kub- dov (dub bar) yog tus nqi ntau dua - zoo rau qhov loj - txoj kab uas hla uas yuav raug machined lawm.
Cov qauv tsim nyog
ASTM A479 / ASME SA 479 Cov Lus QhiaHloov kho tshiab kawg: Lub Rau Hli 02, 2023: Txuj Specification rau Stainless Hlau Bars thiab Shapes rau siv nyob rau hauv boilers thiab lwm yam siab Vessels
FAQ:
Q1: Dab tsi yog ss 304 puag ncig bar nqi ib kg hauv 2026?
A: Tus nqi nruab nrab yog nyob ib ncig ntawm$1.8–$5.0/kg, nyob ntawm txoj kab uas hla, kom muaj nuj nqis, tiav, thiab ntawv pov thawj yuav tsum tau.
Q2: Qhov txawv ntawm SA479 304 thiab 316 round bar yog dab tsi?
A: SA479 316 muaj molybdenum, muab cov tshuaj chloride zoo dua thiab marine corrosion tsis kam. 304 yog qhov pheej yig dua rau kev siv dav dav.
Q3: Qhov twg yog SA479 304 round bar siv?
A: Nws yog dav siv hauv cov khoom siv tshuaj, kev ua zaub mov, cov hlab ntsha siab, li qub, twj, thiab kev tsim khoom.
Q4: Thaum twg kuv yuav tsum xaiv 304L tshaj 304?
A: Xaiv 304L (Low Carbon) yog tias koj tab tom ua haujlwm dav dav ntawm qhov chaw vuam los tiv thaiv kev cuam tshuam ntawm intergranular.
Q5: SA 479 304 puas tuaj yeem siv rau siab -siab valve stems?
A: Yog lawm, yog tias nws ua tau raws li qhov tshwj xeeb ASME siab- qhov ntsuas kub thiab qhov tsim cov cuab yeej cuab tam uas tau teev tseg hauv SA 479 specification.
Q6: Vim li cas kuv cov hlau tsis muaj hlau tsis muaj xeb tom qab machining?
A: Qhov no feem ntau yog vim "cross- paug" los ntawm cov cuab yeej carbon steel. Ib txwm siv cov cuab yeej carbide siab rau kev ua cov hlau tsis muaj steel thiab ua passivation tom qab machining.
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 Plaws hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Xya hli ntuj 10, 2026 (Beijing Sijhawm)
Cim npe nrov: ASME SA 479 SS 304 Round Bar, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
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