Form

ASTM

Rod

B 574

Plate, sheet and strip

B 575

Seamless pipe and tube

B 622

Welded pipe

B 619, B 775

Welded tube

B 626, B 751

Welding fitting

B 366

Forged or rolled pipe flange and forged fitting

B 462

Billet and bar for reforging

B 472

Forging

B 564

%

Ni

Cr

Mo

Fe

W

Co

C

Mn

Si

P

S

V

min

balance

20.0

12.5

2.0

2.5

max

22.5

14.5

6.0

3.5

2.5

0.015

0.50

0.08

0.020

0.020

0.35

Density

8.69 g/cm3

Melting range

1325-1370℃