ASTM A537 tus qauv yog hais txog lub siab lub nkoj daim hlau, cov khoom siv hauv kev kho cua sov, carbon-manganese silicon steel. Raws li qhov sib txawv ntawm lub zog thiab kev kho cua sov, nws nyob ntawm chav kawm 1, 2 thiab 3.
Qhov siab tshaj plaws thickness raws li ASTM A537 Chav Kawm 1 yog 100 hli [4 nti], thiab 150 hli [6 nti] rau Chav Kawm 2 thiab Chav Kawm 3.
ASTM A537 tus qauv yog hais txog lub siab lub nkoj daim hlau, cov khoom siv hauv kev kho cua sov, carbon-manganese silicon steel. Raws li qhov sib txawv ntawm lub zog thiab kev kho cua sov, nws nyob ntawm chav kawm 1, 2 thiab 3.
Qhov siab tshaj plaws thickness raws li ASTM A537 Chav Kawm 1 yog 100 hli [4 nti], thiab 150 hli [6 nti] rau Chav Kawm 2 thiab Chav Kawm 3.
Cov ntaub ntawv siv
ASTM Cov Qauv:
A20/A20M: Specification rau General Requirements for Pressure Vessel Plates
A435 / A435: Rau Ncaj-Beam Ultrasonic Examination ntawm Steel Phaj
A577/A577M: Rau Ultrasonic Angle-Beam Examination ntawm Steel Phaj
A578 / A578M: Rau Ncaj-Beam Ultrasonic Examination ntawm Rolled Steel Phaj rau Kev Siv Tshwj Xeeb
Manufacturing Notes:
Hlau Phaj raws li ASTM A537 Chav Kawm 1, 2 thiab 3 yuav tsum raug tua cov hlau thiab ua raws li qhov zoo ntawm austenitic grain loj yuav tsum tau ntawm Specification A20 / A20M.
Txoj kev kho cua sov
Txhua daim hlau raws li ASTM A537 yuav tsum tau kho cua sov raws li hauv qab no:
ASTM A537 Class 1 daim hlau yuav tsum normalized.
Chav Kawm 2 thiab Chav Kawm 3 yuav tsum tau quenched thiab tempered. Qhov kub thiab txias rau Chav Kawm 2 yuav tsum tsis pub tsawg tshaj 1100 degree F [595 degree] thiab tsis tsawg tshaj 1150 degree F [620 degree] rau Class 3 daim hlau.
Cov Lus Qhia Tshwj Xeeb ntawm ASTM A537 Chav Kawm 1, 2 thiab 3
Cov hlau yuav tsum ua raws li cov kev cai tshuaj muaj nyob rau hauv Table 1 tshwj tsis yog hloov pauv raws li Kev Xav Tau Ntxiv S17, Nqus Carbon-Deoxidized STeel, hauv Specification A20 / A20M.
Table 1:
|
Element |
Kev Ntsuas Kub |
Kev tshuaj xyuas khoom |
|---|---|---|
|
Cov pa roj carbon, maxA |
0.24 |
|
|
Manganese (Tk Tsawg dua lossis sib npaug li 40 mm lossis 1-1/2 in) |
0.70-1.35 |
0.64-1.46 |
|
ManganeseB |
1.00-1.60 |
0.92-1.72 |
|
Phosphorus, maxA |
0.025 |
|
|
Sulfur, maxA |
0.025 |
|
|
Silicon |
0.15-0.50 |
0.13-0.55 |
|
tooj liab, max |
0.35 |
0.38 |
|
Nickel, max |
0.25 |
0.28 |
|
Chromium, max |
0.25 |
0.29 |
|
Molybdenum, max |
0.08 |
0.09 |
A: Siv rau ob qho tib si cua sov thiab cov khoom tsom xam.
B: Manganese tuaj yeem tshaj 1.35% ntawm kev ntsuas cua sov, mus txog qhov siab tshaj ntawm 1.60%, thiab npib tsib xee tuaj yeem tshaj 0.25% ntawm kev ntsuas kub, mus txog qhov siab tshaj ntawm 0.50 %, muab qhov ntsuas kub ntsuas carbon sib npaug koob tshuaj tsis tshaj 0.57^ thaum ua raws li qhov sib npaug hauv qab no:
CE=C + Mn/5 + (Cr+Mo+V)/5 + (Ni+Cu)/15
Thaum siv qhov kev xaiv no, cov ntsiab lus ntawm manganese thiab npib tsib xee ntawm cov khoom tsom xam yuav tsum tsis txhob tshaj cov ntsiab lus ntawm kev ntsuas cua sov los ntawm ntau tshaj {{0}}.12% thiab 0.03%, feem.
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