小口徑厚壁無縫鋼管76x25現貨

標準

牌號

化學成分

C

Si

Mn

P、S

Cu

Ni

Mo

Cr

GB/T 8162

10

0.07-0.14

0.17-0.37

0.35-0.65

≤0.035

≤0.25

≤0.25

/

≤0.15

20

0.17-0.24

0.17-0.37

0.35-0.65

≤0.035

≤0.25

≤0.25

/

≤0.25

35

0.32-0.40

0.17-0.37

0.50-0.80

≤0.035

≤0.25

≤0.25

/

≤0.25

45

0.42-0.50

0.17-0.37

0.50-0.80

≤0.035

≤0.25

≤0.25

/

≤0.25

16Mn

0.12-0.20

0.20-0.55

1.20-1.60

≤0.035

≤0.25

≤0.25

/

≤0.25

ASTM A519

1020

0.18-0.23

/

0.30-0.60

≤0.040

/

/

/

/