X70管线钢管-管线钢管-鹏宇管业(查看)

l485nb管线管是用于石油、工业中的氧、水、油输送管的管道。l485管线管相当于x70管线管

用途:用于石油、工业中的氧、水、油输送管

化学成分:

标准

牌号

化学成分(%)

cev(%)

c

si

mn

p

s

v

nb

ti

api spec 5l

gb/t9711.2

b

≤0.16

≤0.40

≤1.10

≤0.020

≤0.010

-

-

-

≤0.42

x42

≤0.17

≤0.40

≤1.20

≤0.020

≤0.010

≤0.05

≤0.05

≤0.04

≤0.42

x52

≤0.20

≤0.45

≤1.60

≤0.020

≤0.010

≤0.10

≤0.05

≤0.04

≤0.45

x60

≤0.21

≤0.45

≤1.60

≤0.020

≤0.010

≤0.15

≤0.05

≤0.04

协议

x65

≤0.16

≤0.45

≤1.60

≤0.020

≤0.010

≤0.06

≤0.05

≤0.06

≤0.45

x70

≤0.16

≤0.45

≤1.70

≤0.020

≤0.010

≤0.06

≤0.05

≤0.06

≤0.45

注:

1.0.015%≤altot<0.06%;n≤0.012%;al/n***2/1;cu≤0.25%;ni≤0.30%;cr≤0.30%;mo≤0.10%

2.v+nb+ti≤0.15

3.x60、x65、x70经协商mo≤0.35%