等级
|
C
|
Mn
|
Si
|
P
|
S
|
V
|
Nb
|
Ti
|
Al
|
Cr
|
Ni
|
A
|
≤0.20
|
1.00~1.60
|
≤0.55
|
≤0.045
|
≤0.045
|
0.02~0.20
|
0.015~0.060
|
0.02~0.20
|
-
|
≤0.30
|
≤0.70
|
B
|
≤0.20
|
1.00~1.60
|
≤0.55
|
≤0.040
|
≤0.040
|
0.02~0.20
|
0.015~0.060
|
0.02~0.20
|
-
|
≤0.30
|
≤0.70
|
C
|
≤0.20
|
1.00~1.60
|
≤0.55
|
≤0.035
|
≤0.035
|
0.02~0.20
|
0.015~0.060
|
0.02~0.20
|
≥0.015
|
≤0.30
|
≤0.70
|
D
|
≤0.20
|
1.00~1.60
|
≤0.55
|
≤0.030
|
≤0.030
|
0.02~0.20
|
0.015~0.060
|
0.02~0.20
|
≥0.015
|
≤0.30
|
≤0.70
|
E
|
≤0.20
|
1.00~1.60
|
≤0.55
|
≤0.025
|
≤0.025
|
0.02~0.20
|
0.015~0.060
|
0.02~0.20
|
≥0.015
|
≤0.30
|
≤0.70
|
不锈钢复合管由不锈钢和碳素结构钢两种金属材料采用无损压力同步复合成的新材料,兼具不锈钢抗腐蚀耐磨和卓越美丽的外表,以及碳素钢良好的抗弯强度及抗冲击性。符合国家节能及普及的原则。不锈钢复合管于2002年国家标准GB/T18704-2002正式颁布,从材料质量选择,检验等方面都有了一整套严格规范的管理,由于外表美观、价格低廉等优点,现已广泛用于桥梁护栏,装饰装潢,车辆附件,输送辊轮,纺机配件等领域。