SN400A yog cov hlau phaj rau cov qauv tsim. "SN": qhia cov Japanese txheem steel phaj rau cov tsev; "400": qhia qhov tsawg kawg nkaus lub zog ntawm cov hlau phaj yog 400MPa; "A": qhia txog qib zoo ntawm cov hlau phaj.
SN400A steel phaj xa khoom raws li txoj cai: Lub phaj hlau xa tuaj rau hauv lub xeev quenched thiab tempered (tempering kub tsis tsawg dua 600 degrees). Kev xa khoom tuaj yeem raug teev raws li kev xav tau.
Chemical Composition (%):
|
Qib / Khoom siv |
Element |
Composition (Max-A, Min-I) |
|
JIS G 3136 SN400A |
C |
A:0.24 |
|
Mn |
A:-- |
|
|
Si |
A:-- |
|
|
P |
A:0.050 |
|
|
S |
A:0.050 |
Mechanical Properties (Mpa):
|
Qib / Khoom siv |
Tensile Test |
MPa |
|
JIS G 3136 SN400A |
Tensile zog |
400-510 |
|
Yield zog |
I:235 |
|
|
Elongation |
I:17% |
|
|
Impact Test (yog tias muaj) |
-- |
