20MnMoNi55，适用于厚度不大于150mm厚钢板的生产和检验。钢板的尺寸、外形、重量及允许偏差应符合GB6654-96标准的规定。
执行标准：WYJ217-2007
钢板按SEL072 逐张超声波探伤。
化学成分：（Wt%）
|
C |
0.15~0.25 |
|
Si |
0.10~ 0.35 |
|
Mn |
1.15~ 1.55 |
|
P |
≤0.015 |
|
S |
≤0.012 |
|
Ni |
≤ 0.20 |
|
Mo |
0.45 ~ 0.85 |
|
Al |
0.40~0.55 |
|
Cu |
0.010 ~ 0.050 |
|
V |
≤0.15 |
力学性能：
|
屈服强度Mpa |
抗拉强度Mpa |
A(%) |
Rp0.2（Mpa） |
|
NT ≥450 |
570~740 |
≥18 |
≥390 |
注：>100mm厚度正火+回火交货的钢板力学性能提供实测值。
3.6试样模拟焊后热处理工艺：615±15℃，保温10小时。
Supply of Steel Plates 25GrMoVA for Boilers and Pressure Vessels
下一篇Supply of 20MnMoR Steel Plate for Boilers and Pressure Vessels
2023-06-15 1609 0
2019-06-21 1099 0
2017-06-28 1242 0
2017-01-22 1189 0
Lize City Air Terminal Underground Main Structure Nearing Completion: Maximum Transfer Walk Under 4 Minutes After Operation
Anti-seepage Curtain for Main Lock Pit of CSCEC Port Shenqiu Double-Line Lock Project Completed on Schedule
All Pile Foundations Completed on Quanzhou Baiqi Channel
Hainan Upgrades Housing and Municipal Infrastructure
First Foundation Concrete Pour Successfully Completed for Zambia Kafue West–Muzuma 330kV Transmission Line EPC Project
Hot News
评论 （0）