ASTM A437 Gr.B4C
2017-03-14 08:51:17   Origin：   Remark：0 Click：

TYPE OF STEEL: Martensitic stainless steel
On-hand Stock - diameter 20 ~ 280mm
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS -  BV
Technical standards: ASTM A437 - 2012
MAIN CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％):  0.20 ~ 0.25
Silicon, Si (％):  0.20 ~ 0.50
Manganese, Mn (％):  0.50 ~ 1.00
Phosphorus, P (％)≤:  0.025
Sulfur, S (％)≤:  0.015
Chromium, Cr (％):  11.0 ~ 12.5
Nickel, Ni (％):  0.50 ~ 1.00
Molybdenum, Mo (%):  0.90 ~ 1.25
Tungsten, W (%):  0.90 ~ 1.25
Vanadium, V (%):  0.20 ~ 0.30
Aluminum, Al (%):  ≤ 0.05
Titanium, Ti (%):  ≤ 0.05
Tin (%):  ≤ 0.04