锻件新旧标准的钢号对照 |
下表为JB/T4728-2000不锈钢锻件钢号与NB/T47010-2010不锈钢锻件钢号对照,并列出了两种标准主要成分的差异。 |
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序号 |
标准 |
钢号 |
化学成分(质量分数),% |
C |
Cr |
Ni |
Mo |
S |
1 |
JB/T4728-2000 |
0Cr13 |
≤0.08 |
11.50~13.50 |
≤0.60 |
— |
≤0.030 |
NB/T47010-2010 |
S11306 |
≤0.06 |
≤0.020 |
2 |
JB/T4728-2000 |
0Cr18Ni9 |
≤0.07 |
17.00~19.00 |
8.00~11.00 |
— |
≤0.030 |
NB/T47010-2010 |
S30408 |
≤0.08 |
18.00~20.00 |
8.00~10.50 |
≤0.020 |
3 |
JB/T4728-2000 |
00Cr19Ni10 |
≤0.03 |
18.00~20.00 |
8.00~12.00 |
— |
≤0.030 |
NB/T47010-2010 |
S30403 |
≤0.030 |
≤0.020 |
4 |
JB/T4728-2000 |
0Cr18Ni10Ti |
≤0.08 |
17.00~19.00 |
9.00~12.00 |
— |
≤0.030 |
NB/T47010-2010 |
S32168 |
≤0.020 |
5 |
JB/T4728-2000 |
0Cr17Ni12Mo2 |
≤0.08 |
16.00~18.00 |
10.00~14.00 |
2.00~3.00 |
≤0.030 |
NB/T47010-2010 |
S31608 |
≤0.020 |
6 |
JB/T4728-2000 |
00Cr17Ni14Mo2 |
≤0.03 |
16.00~18.00 |
12.00~15.00 |
2.00~3.00 |
≤0.030 |
NB/T47010-2010 |
S31603 |
≤0.030 |
10.00~14.00 |
≤0.020 |
7 |
JB/T4728-2000 |
0Cr18Ni12Mo2Ti |
≤0.08 |
16.00~19.00 |
11.00~14.00 |
1.80~2.50 |
≤0.030 |
NB/T47010-2010 |
S31668 |
16.00~18.00 |
10.00~14.00 |
2.00~3.00 |
≤0.020 |
8 |
JB/T4728-2000 |
00Cr18Ni5Mo3Si2 |
≤0.03 |
18.00~19.50 |
4.50~5.50 |
2.50~3.00 |
≤0.020 |
NB/T47010-2010 |
S21953 |
≤0.030 |
JB4728-2000压力容器用不锈钢锻件
JB4727-2000低温压力容器用低合金钢锻件
JB/T4726-2000压力容器用碳素钢与低合金钢锻件