ASTM A533 Qib A thiab Qib B yog qis- alloy steels rau welded siab hlab ntsha, nrog Qib B yog qhov ntau dua, muab lub zog thiab tawv dua, tshwj xeeb tshaj yog nyob rau hauv cov ntu tuab, vim nws cov manganese- molybdenum (thiab qee zaum npib tsib xee) muaj pes tsawg leeg, haum rau kev thov kev thov xws li nuclear reactors, qis dua {3}, qib A feem ntau muab quenched thiab tempered. Qhov sib txawv tseem ceeb yog nyob rau hauv lawv cov cuab yeej cuab tam (yield / tensile lub zog) thiab lub hom phiaj kev pab cuam, nrog Qib B qhov kev txhim kho toughness ua rau nws ua haujlwm rau siab - kev ntxhov siab, tuab - ntu cov hlab ntsha.
Tshuaj muaj pes tsawg leeg ntawm ASTM A533 Qib A
|
Qib |
C % |
Mn %(<40mm) |
P% |
S% |
Si% |
Mo% |
Ni% |
|
A533 Qib A |
0.25 |
1.07-1.82 |
0.035 |
0.035 |
0.13-0.45 |
0.41-0.84 |
-- |
Tshuaj muaj pes tsawg leeg ntawm ASTM A533 Qib B
|
Qib |
C % |
Mn %(<40mm) |
P% |
S% |
Si% |
Mo% |
Ni% |
|
A533 Qib B |
0.25 |
1.07-1.82 |
0.035 |
0.035 |
0.13-0.45 |
0.41-0.84 |
0.37-0.73 |
Mechanical Property ntawm ASTM A533 Qib A
|
Qib |
Min Yield |
Tensile |
Thickness |
Elongation |
|
A533 Qib A |
345mpa ua |
550-690 Mpa |
<50MM |
18% |
Mechanical Property ntawm ASTM A533 Qib B
|
Qib |
Min Yield |
Tensile |
Thickness |
Elongation |
|
A533 Qib B |
485mpa ua |
620-795 Mpa |
<50MM |
16% |
ASTM A533 Cov Lus Qhia Tshwj Xeeb
Hom: Alloy steel phaj rau cov hlab ntsha siab, feem ntau manganese-molybdenum (Mn-Mo) lossis Mn-Mo-Ni.
Kev kho cua sov: Feem ntau muab quenched thiab tempered (Q&T) kom txhim kho lub zog thiab toughness.
Cov chav kawm: Muaj nyob rau hauv cov chav kawm sib txawv (xws li Chav Kawm 1, 2, 3) qhia txog qib siab zog, nrog Qib B Qib 3 yog qhov muaj zog tshaj plaws.
Qhov txawv tseem ceeb: Qib A vs. Qib B
Lub zog: Qib B muab siab dua tensile thiab yield zog dua qib A, tshwj xeeb tshaj yog nyob rau hauv daim hlau tuab.
Kev Siv: Qib B (tshwj xeeb yog Chav Kawm 1 thiab 3) yog qhov kev xaiv zoo tshaj plaws rau hnyav -section nuclear reactor hlab ntsha thiab siab - cov khoom siv siab. Qib A muaj cov khoom txaus rau qis dua -lub zog, tsis tshua muaj kev cuam tshuam cov hlab ntsha.
Kev sib xyaw: Thaum ob qho tib si yog cov hlau alloy, Qib B feem ntau suav nrog npib tsib xee (Mn-Mo-}Ni), ua rau nws zoo tshaj qhov tsis zoo, cov cuab yeej tseem ceeb rau cov khoom tuab, sau ASM International.
