ASTM A738 \/ A738M {2}} pdf
Dab tsi yog ASTM A738?
ASTM A738 \/ A738m B specification rau nag lossis daus-tawv-allys alloys phaj, thiab sawb.
Dab tsi yog astm A738 cov khoom siv sib npaug?
| EU En |
Usa - |
Lub teb chaws Yelemees Din, WNR |
Fabkis Ib tug kaum |
Lus teb chaws Bs |
Laus Laus En |
Phiaj suav Tus kab laug gb |
||||
| S420NL (1.8912) |
|
Tste420 |
E420Fp |
50F |
NQE )20KTN | Q420E |
Dab tsi yog cov tshuaj lom neeg muaj pes tsawg leeg ntawm Astm A738
|
C |
Mn |
P 1) |
S 1) |
Si |
CU |
Ni |
Cr |
Mo |
V |
Tsheb hauv paus |
V + cb |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
0.20 |
1.50 |
0.020 |
0.01 |
0.55 |
0.35 |
0.60 |
0.30 |
0.20 |
0.07 |
0.04 |
0.08 |
Dab tsi yog sa 738 cov khoom siv?
Sa -738 gr. B yog 600 MPA cov chav kawm hlau uas tau ua tiav los ntawm kev txiav txim siab ntawm quench-temper (qt). Upper txwv rau cov ntsiab lus ntawm alloy cov ntsiab lus thiab cov roj carbon sib npaug CEQ yog teev los ntawm phaj tuab.
Sa738 qib b sib npaug
16mndr, 07mnmovr, 07mnnivdr
Kev thev
Thickness, qhov dav, thiab ntev ntev rau A738 qib B \/ SA738 qib B yog nyob rau Astm AX yuav tsum tau ua. Lub tiaj tiaj tiaj tus tsim nyog rau cov khoom xa tuaj yog ½ antm aT20.
