ASTM A500 Qib B yeeb nkab yog dab tsi?
ASTM A500 yog tus qauv rau cov khaub thuas- ua welded carbon structural steel tubing tsim los ntawm American Society for Testing and Materials (ASTM), uas tau teeb tsa cov kev cai kom meej meej rau cov raj duab plaub thiab square. Raws li tus qauv, lub zog tawm los ntawm cov yeeb nkab steel yuav tsum ncav cuag lossis ntau dua 345 MPa (kwv yees li 50 ksi), lub zog tensile yuav tsum nyob ntawm 400 txog 550 MPa, thiab elongation yuav tsum tsis pub tsawg tshaj 18%. Cov khoom siv kho tshuab ua kom ntseeg tau tias cov tubing steel muaj qhov ruaj khov txaus thaum raug thauj khoom.
ASTM A500 Qib B cov khoom sib npaug yog dab tsi?
A500 yog cov qauv carbon steel siv hauv ASTM daim ntawv thov, muaj lub zog zoo thiab weldability. Nws yog tus cwj pwm los ntawm cov ntsiab lus ntawm manganese nruab nrab thiab kev tswj hwm nruj ntawm leej faj thiab phosphorus impurities, ua rau nws haum rau txias khoov. Hom hlau no yog siv dav hauv kev tsim cov thav duab, kev txhawb nqa choj, thiab kev siv zoo sib xws, thiab sib npaug rau cov khoom siv feem ntau.Q355 series steel nyob rau hauv Suav teb.
A500 GRB steel raj specification
Qhov Loj Loj:1/2 "NB to 36" NB
Thickness:SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, Tag nrho cov sij hawm
Daim ntawv thov:Roj Refineries, Petrochemicals, Fais Fab Tsim (Nuclear / Thermal), Hlau, Qab Zib, Boiler Equipments, Siab Vessels thiab General Engineering Lub Hom Phiaj
Xaus kev sib txuas rau Kab Yeeb:Plain, Bevel, Screwed, Threaded
Hom:Seamless / ERW / Welded / Fabricated / CDW
Daim ntawv:Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipes/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes
Ntev:Ib qho Random, Ob Chav Random & Ntev Ntev, Kev Cai Loj - 12 Meter ntev
Xaus:Plain End, Beveled kawg, Treaded
Kev Tiv Thaiv Kawg:Yas Caps
A500 GRB Chemical Properties |
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| Qib A, B, thiab D – Kev ntsuas kub | Qib A, B, thiab D – Kev tshuaj xyuas cov khoom | Qib C - Kev ntsuas kub | Qib C - Kev tshuaj xyuas cov khoom | |
| Cov pa roj carbon ntau, % | 0.26 | 0.3 | 0.23 | 0.27 |
| Manganese, siab tshaj% | 1.35 | 1.4 | 1.35 | 1.4 |
| phosphorus, siab tshaj,% | 0.035 | 0.045 | 0.035 | 0.045 |
| Sulfur, siab tshaj,% | 0.035 | 0.045 | 0.035 | 0.045 |
| tooj liab, yam tsawg kawg nkaus (yog tias tooj liab- muaj cov hlau tau teev nyob rau hauv daim ntawv xaj khoom) % | 0.2 | 0.18 | 0.2 | 0.18 |
A500 GRB Carbon Steel Yeeb Nkab Hoobkas
