SA387 Qib 11 Chav Kawm 2yog chromium-molybdenum alloy steel phaj tsim los rau siab -kub siab cov hlab ntsha, muab lub zog zoo dua thiab tiv thaiv corrosion, tshwj xeeb tshaj yog nyob rau hauv cov roj, roj, thiab petrochemical daim ntaub ntawv, nrog "Class 2" qhia siab tensile thiab yield zog dua Class 1 vim hais txog kev kho cua sov, feem ntau normalized thiab tempered.
Sib npaug
| BS | EN | ASTM/ASME | DIN |
| 621 B | ––– | SA387-11-2 | ––– |
Specifications rau ASME SA387 Qib 11 Alloy Steel Phaj
Chromium & Molybdenum cov ntsiab lus (raws li ASME specification)
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| SA387 Qib 11 | 1.25% | 0.50% |
Tensile Requirements rau ASME SA387 Qib 11 Alloy Steel Phaj Chav Kawm 2
| Lub npe: | Yuav tsum tau: | Qib 11 |
| SA387 Qib 11 | Tensile zog, ksi [MPa] | 75 txog 100 [515 rau 690] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 43 [310] | |
| Elongation hauv 8 nti. [200mm], min % | 18 | |
| Elongation hauv 2 nti. [50mm], min, % | 22 | |
| Txo thaj tsam, min% | ––– |
Cov Khoom Siv Tshuaj Rau ASME SA387 Qib 11 Alloy Steel Phaj
| Element | Chemical Composition (%) | |
| SA387 Qib 11 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.05 - 0.17 |
| Product Analysis: | 0.04 - 0.17 | |
| Manganese: | Kev Ntsuas Kub: | 0.40 - 0.65 |
| Product Analysis: | 0.35 - 0.73 | |
| Phosphorus: | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulfur (max): | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Silicon: | Kev Ntsuas Kub: | 0.50 - 0.80 |
| Product Analysis: | 0.44 - 0.86 | |
| Chromium: | Kev Ntsuas Kub: | 1.00 - 1.50 |
| Product Analysis: | 0.94 - 1.56 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.65 |
| Product Analysis: | 0.45 - 0.70 |
Cov ntawv thov tseem ceeb
Pressure Vessels & Separators:Siv rau khaws cia thiab ua cov kua dej kub thiab cov pa roj hauv cov refineries thiab cov nroj tsuag tshuaj, qhov uas nws tsis kam mus rau hydrogen nres (HTHA) yog ib qho tseem ceeb kom tsis txhob muaj cov khoom tsis ua hauj lwm nyob rau hauv hnyav hnyav.
Boilers & Headers:Zoo tagnrho rau boiler nruas, headers, thiab siab -kub piping systems nyob rau hauv fais fab nroj tsuag, enduring huab cua siab thiab thermal stress tau ntseeg tau.
Thaum tshav kub kub Exchangers:Withstands thermal cycling thiab siab ua hauj lwm kub nyob rau hauv lub plhaub - thiab - raj kub exchangers, kom ruaj khov thaum tshav kub kub efficiency.
Cov kav dej:Rau siab - kub thiab corrosive kev pab cuam, haum rau conveying aggressive media xws li qaub roj hauv roj thiab roj ua haujlwm.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
1.Yog SA 387 carbon steel?
Weldable carbon steel daim hlau rau cov hlab ntsha siab thiab boilers siv nyob rau hauv siab kub. Cov khoom siv tau txais txiaj ntsig los ntawm kev ntxiv chromium thiab molybdenum uas muab cov hlau ntau dua corrosion tsis kam thiab tiv taus cua sov.
2. Puas yog sa 387 qib 11 chav kawm 2 steel zoo?
Yog lawm, SA 387 Qib 11 Chav Kawm 2 hlau yog suav tias yog qhov zoo heev rau nws cov kev siv tshwj xeeb, muab lub zog zoo heev, corrosion, thiab oxidation tsis kam ntawm qhov kub siab, ua rau nws zoo tagnrho rau cov hlab ntsha siab, boilers, thiab cov kav dej hauv cov roj, roj, thiab tshuaj lom neeg kev lag luam, tshwj xeeb tshaj yog nyob rau hauv high - cua sov lossis qaub roj ib puag ncig. Nws cov chromium-molybdenum alloy muaj pes tsawg leeg muab kev ua tau zoo dua carbon steel rau qhov xav tau, nrog rau Chav Kawm 2 muab lub zog tensile ntau dua li Chav Kawm 1.