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SG325 steel

JISG 3116 SG325 steel are characterised by a good weldability. The user of JISG 3116 SG325 steel must make sure that his calculation, design and processing methods are appropriate for the material. The JISG 3116 SG325 steel of this series are used for manufacturing gas cylinders by welding cold-formed parts together and normalizing the inished cylinder. 

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Chemical composition unit%

Symbol  Chemical composition
C
max
Si
max
Mn
max
P
max
S
max
SG325 0.20 0.55 1.50 0.040 0.040

Mechanical properties

Symbol Yield point or proof stress
N/mm2 (min)
Tensile strength
N/mm2 min
Elongation % min
 
Tensile test piece Bendability
Bending
Angle
Inside radius Test piece
SG325 325 490 22 NO.5 in rolling direction 180° Thickness x 1.0
Thickness x 1.5
No.3 in rolling direction