Dab tsi yog a387 phaj?

A387 phaj hais txog ib hom high-strength low-alloy (HSLA) steel phaj uas feem ntau yog siv rau hauv kev tsim cov hlab ntsha thiab boilers. Nws tseem hu ua ASTM A387 phaj los yog ASME SA387 phaj, raws li nws yog tsim thiab ntawv pov thawj rau cov specifications teev los ntawm American Society for Testing and Materials (ASTM) thiab American Society of Mechanical Engineers (ASME).

ASTM A387 phaj muaj nyob rau hauv ntau qib, txhua qhov sib txawv ntawm lub zog, toughness, thiab corrosion kuj. Cov qib siv feem ntau yog A387 Qib 11, Qib 12, Qib 22, thiab Qib 91. Cov phaj hlau no feem ntau yog ua los ntawm melting thiab casting cov hlau, ua raws li dov los yog forging rau hauv qhov xav tau thickness thiab cov duab. Qhov tiav A387 Chrome Moly Phaj yog tom qab ntawd kho cua sov los txhim kho nws cov khoom thiab xyuas kom meej tias nws ua tau raws li qhov xav tau tshwj xeeb rau kev siv hauv cov hlab ntsha thiab cov boilers.

A387 Gr.5 phaj yog hais txog ib hom tshwj xeeb ntawm lub zog siab qis-alloy (HSLA) steel phaj uas yog tsim thiab ntawv pov thawj rau ASTM A387 Qib 5 specification. Cov phaj hlau no feem ntau yog siv rau hauv kev tsim kho cov hlab ntsha thiab cov boilers, qhov uas yuav tsum tau muaj qhov kub thiab txias.

SA 387 GR 11 phaj muaj lub zog tensile yam tsawg kawg nkaus ntawm 415-585 MPa (60-85 ksi) thiab qhov tsawg kawg nkaus lub zog ntawm 240 MPa (35 ksi). Nws kuj muaj qhov zoo corrosion kuj thiab yog resistant rau hydrogen embrittlement, ua rau nws haum rau siv nyob rau hauv hnyav ib puag ncig.

Cov muaj pes tsawg leeg ntawm A387 Gr.22 boiler phaj feem ntau suav nrog chromium, molybdenum, thiab qee zaum vanadium, uas muab cov cua sov zoo heev thiab txhim kho nws cov khoom siv kho tshuab. SA 387 GR 22 phaj feem ntau yog tsim los ntawm melting thiab casting cov hlau, ua raws li dov los yog forging rau hauv cov thickness thiab cov duab xav tau.

Cov muaj pes tsawg leeg ntawm A387 Gr.91 siab lub nkoj phaj feem ntau suav nrog chromium, molybdenum, thiab vanadium, uas muab cov cua sov zoo heev thiab txhim kho nws cov khoom siv kho tshuab. SA 387 GR 91 phaj feem ntau yog tsim los ntawm melting thiab casting cov hlau, ua raws li dov los yog forging rau hauv cov thickness thiab cov duab xav tau.

HT PIPE yog ib tug kws tshaj lij distributor thiab chaw tsim tshuaj paus ntawm A387 steel phaj, yog tias koj xav tau zoo SA387 steel phaj, thov hu rau peb!