SG255/SG295/SG325/ SG365 steel
JIS G 3116-2000
Steel sheet,plate and strip for gas cylinders
SG255/SG295/SG325/ SG365 Chemical composition unit%
Symbol |
Chemical composition |
||||
|
C |
Si |
Mn |
P |
S |
|
|
SG255 |
0.20 |
- |
0.30 |
0.040 |
0.040 |
|
SG295 |
0.20 |
0.35 |
1.00 |
0.040 |
0.040 |
|
SG325 |
0.20 |
0.55 |
1.50 |
0.040 |
0.040 |
|
SG365 |
0.20 |
0.55 |
1.50 |
0.040 |
0.040 |
SG255/SG295/SG325/ SG365 Mechanical properties
Symbol |
Yield point or proof stress |
Tensile strength |
Elongation % min |
Tensile test piece |
Bendability |
||
|
Bending |
Inside radius |
Test piece |
|||||
|
SG255 |
255 |
400 |
26 |
NO.5 in rolling direction |
180° |
Thickness x 1.0 |
No.3 in rolling direction |
|
SG295 |
295 |
440 |
26 |
180° |
Thickness x 1.5 |
||
|
SG325 |
325 |
490 |
22 |
180° |
|||
|
SG365 |
365 |
540 |
20 |
180° |
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