Hauv kev lag luam ntawm lub nkoj siab thiab boiler kev tsim khoom, xaiv cov khoom tsim nyog tuaj yeem cuam tshuam kev nyab xeeb, kev ua haujlwm, thiab nqi.
ASME SA516 Gr 70 thiab SA537 Cl 1 yog ob qho tib si carbon steel daim hlau siv rau kev siv welded, tab sis lawv txawv nyob rau hauv muaj pes tsawg leeg, khoom, thiab haum rau tej yam kev mob.
Ntawm GNEE steel, peb tshwj xeeb hauv kev muab cov qib siab - zoo li ASME SA537 Cl.1 raws li ASME SA537 / SA537M tus qauv, sib npaug rau ASTM A537 Class 1.
SA516 Gr 70 yog cov pa roj carbon zoo li qub rau cov kev pabcuam kub nruab nrab thiab qis qis, thaum SA537 Cl 1 yog cov pa roj carbon monoxide-manganese-silicon steel nrog lub zog siab dua rau qis- kub thiab siab - qhov chaw siab.
Phau ntawv qhia no los ntawm GNEE steel sib piv ob, pab koj xaiv rau koj cov haujlwm.
- SA537 Cl1:Qhia meej raws li ASTM A537 / ASME SA-537 - "Tswj Vessel Phaj, Kub Kho, Carbon Steel." Chav kawm 1 yog npaj rau siabcov hlab ntsha thiab feem ntau xav tau kev kho cua sov thiab txhim kho toughness tswj.
- Qauv TSIS MUAJ: SA516 Gr70Qhia meej raws li ASTM A516 / ASME SA-516 - "Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service." Qib 70 yog qib feem ntau siv rau cov hlab ntsha thiab cov boilers.
Kev sib piv tshuaj lom neeg
- SA516 Gr 70 muaj ib qho yooj yim carbon muaj pes tsawg leeg nrog manganese thiab silicon rau deoxidation.
- Carbon yog 0.27-0.28% max, manganese 0.85-1.20%, phosphorus / sulfur 0.035% max.
- SA537 Cl 1 suav nrog silicon (0.15-}0.50%) thiab xaiv cov alloys xws li tooj liab / npib tsib xee kom zoo dua toughness, carbon 0.24% max, manganese 0.70-1.60% (thickness-dependent).
- SA537's silicon txhim kho qis -kev ua haujlwm kub.
Lub rooj sib piv:
|
Element |
SA516 Gr 70 (%) |
SA537 Cl 1 (%) |
|---|---|---|
|
Cov pa roj carbon (C) |
0.27-0.28 hli |
0.24 max |
|
Manganese (Mn) |
0.85-1.20 |
0.70-1.35 (≤40mm) 1.00-1.60 (>40mm) |
|
Phosphorus (P) |
0.035 max |
0.035 max |
|
Sulfur (S) |
0.035 max |
0.035 max |
|
Silicon (Si) |
0.15-0.40 |
0.15-0.50 |
Mechanical Properties Sib piv
- SA516 Gr 70 tau tawm los 38 ksi (260 MPa) min, tensile 70-90 ksi (485-620 MPa).
- SA537 Cl 1 muaj cov txiaj ntsig siab dua 50 ksi (345 MPa) min (tsawg dua lossis sib npaug li 65 hli), tensile 70-90 ksi.
- SA537 muab qhov zoo dua qis -temp toughness nrog rau kev sim.
Properties Table:
|
Khoom |
TIAB SA 516 Gr 70 |
SA537 Cl 1 |
|---|---|---|
|
Yield zog (min) |
38 ksi (260 MPa) |
50 ksi (345 MPa) (tsawg dua lossis sib npaug li 65 hli) |
|
Tensile zog |
70-90 ksi (485-620 MPa) |
70-90 ksi (485-620 MPa) |
|
Elongation (50 hli, min) |
21% |
22% |
Tej kev siv
| SA537 Chav Kawm 1 (kev siv ib txwm) | SA516 Qib 70 (ib txwm siv) |
|---|---|
| High-integrity siab cov hlab ntsha yuav tsum tau siab dua, cov ntaub ntawv toughness thiab puas tsis kam (xws li, tseem ceeb petrochemical cov hlab ntsha, high-pressure reactors) | Boilers, txheem cov hlab ntsha siab, qis-rau nruab nrab-siab tso tsheb hlau luam thiab cov cua kub exchangers |
| Cov nkoj los yog cov khoom nyob rau hauv cov ntu tuab uas cuam tshuam rau lub zog los ntawm thickness yog qhov tseem ceeb | General fabrication ntawm welded hlab ntsha uas tus nqi thiab muaj yog cov tseem ceeb |
| Cheebtsam ua raws li cov cai nruj dua lossis kev tsim nyog xav tau (kev pabcuam kub qis nrog cov cai nruj) | Lub tank cia, piping spools, thiab fabricated qhov chaw uas tsim cov txheej txheem weld txaus |
Kev xaiv qhov laj thawj: - Xaiv SA537 Cl1 qhov twg tsim FEA, pob txha mechanics, lossis cov cai yuav tsum tau muaj kev lav phib xaub ntau dua los yog thaum cov khoom siv tuab thiab raug rau qhov kub thiab txias los yog siab residual stresses . - Xaiv SA516 Gr70 rau kev lag luam, dav dav hlau phaj nrog zoo weldability rau cov pa siv lub siab thiab boiler.
Nqi thiab Muaj
TIAB SA 516 Gr70: Feem ntau siv nyiaj ntau dua thiab dav dav hauv ntau qhov tuab thiab cov ntaub ntawv (coils tsis tshua muaj rau cov phaj siab; daim hlau thiab txiav qhov ntau thiab tsawg tau yooj yim muaj). Cov khoom siv muaj zog rau cov txheej txheem siab lub nkoj tsim khoom.
SA537 Cl1:Feem ntau cov nqi siab dua vim yog kev tswj cov tshuaj lom neeg nruj dua, kev kho cua sov tau teev tseg, thiab cov tsim khoom tsim muaj tsawg dua rau cov ntawv pov thawj Class 1 phaj. Lub sij hawm txhuas yuav ntev dua rau qhov loj dua los yog nruj toughness xav tau.
Ob qho tib si muaj los ntawm cov hlau loj loj, tab sis kev yuav khoom yuav tsum xav txog lub sij hawm xa khoom, cov ntawv pov thawj (cov ntawv pov thawj zeb, cov ntaub ntawv cuam tshuam), thiab seb puas yuav tsum tau kho cov cua sov ntxiv tom qab vuam lossis tag nrho NDE.
Los ntawm kev nkag siab txog lawv qhov sib txawv tseem ceeb uas tau teev tseg hauv tsab xov xwm no, koj tuaj yeem ua qhov kev txiav txim siab uas ua kom muaj kev nyab xeeb, kev ncaj ncees, thiab kev lag luam ntawm koj cov khoom siv.
Koj puas xav kawm ntxiv txog cov qib tshwj xeeb lossis muaj ib daim ntawv thov tshwj xeeb hauv siab?
FAQ
Dab tsi yog qhov txawv ntawm SA 516 GR 70 thiab SA 537 CL 1?
SA516 Gr 70 yog cov pa roj carbon zoo li qub rau nruab nrab temps nrog yield 38 ksi, thaum SA537 Cl 1 yog cov pa roj carbon monoxide-manganese-silicon steel nrog cov txiaj ntsig siab dua 50 ksi rau qis -temp toughness.
Cov tshuaj muaj pes tsawg leeg yog dab tsi?
SA516 Gr 70 muaj carbon 0.27-0.28% max; SA537 Cl 1 0.24% max nrog silicon 0.15-0.50% rau deoxidation zoo dua.
Dab tsi yog qhov txawv ntawm mechanical zog?
SA516 Gr 70 tawm los 38 ksi, SA537 Cl 1 50 ksi, tso cai thinner tsim hauv SA537.
Qhov kub ntawm qhov sib txawv yog dab tsi?
SA516 Gr 70 rau -29℃min; SA537 Cl 1 rau -46℃nrog kev cuam tshuam zoo dua.
Dab tsi yog qhov txawv ntawm SA 516 GR 70 thiab SA 516 GR 70n?
Qhov sib txawv tseem ceeb yog nyob rau hauv cov txheej txheem kho cua sov: SA 516 Gr 70 feem ntau yog muab rau hauv qhov zoo li -rolled mob (kub- dov yam tsis muaj kev kho mob ntxiv), thaum lub npe "N" qhia txog qhov xwm txheej (kub siab tshaj qhov kub thiab txias thiab huab cua-cooled rau grain refinement).
Dab tsi yog qhov txawv ntawm A283 Qib C thiab A516 GR 70?
A516 Qib 70 feem ntau yog siv rau hauv cov ntawv thov uas siab kub thiab siab koom nrog, xws li hauv kev lag luam petrochemical thiab roj thiab roj. Ntawm qhov tod tes, A283 Qib C yog siv rau kev siv cov qauv siv dav dav thiab tsis haum rau kev siv lub nkoj siab.
