低温高圧用鋳鋼品 社内規格 STEEL CASTINGS FOR LOW

低温高圧用鋳鋼品 社内規格
STEEL CASTINGS FOR LOW TEMPERATURE AND HIGH PRESSURE SERVICE
Domestic
Designation
4-1 SCPL 1
4-2 SCPL 11
4-3 SCPL 21
4-4 SCPL 31
Yield
Point
heat
Cr
Cu treatmen N/mm2
max. max.
t
min.
P
S
C
Si
Mn
max. max. Mo
Ni
0.15
≦0.60 ≦1.00 0.04 0.04
≦0.50 0.25 0.50
∼0.20
0.10
0.50
0.45
≦0.60
0.04 0.04
0.35 0.50
∼0.15
∼0.80
∼0.65
0.15
0.50
2.00
≦0.60
0.04 0.04
0.35 0.50
∼0.20
∼0.80
∼3.00
0.14
0.25
0.50
∼0.18 ∼0.45 ∼0.70
0.04
0.04
0.40
3.00
0.35 0.50
∼0.50 ∼4.00
Tensile
Strength
N/mm2
min.
Q T
245
450
Q T
245
450
OQ OT
275
480
OQ OT
275
480
YONAGO STEEL CO.,LTD.
Rd.
Test
Elongation of Area Temp.
%
%
Absp.E
min.
min.
J(2V)
−45℃
21
35
AV.≧18
−60℃
21
35
AV.≧18
−75℃
21
35
AV.≧21
21
35
−100℃
AV.≧21