JIS G 3445 Grade STKM 13C Specification.
JIS G 3445 Grade STKM 13C Carbon Steel Seamless Tubes are also known as mild steel pipes and tubes.JIS G 3445 Grade STKM 13C Tubes are low-cost Low Carbon Steel Tubes with max 025 % carbon content easy to form and shape .These pipes are manufactured as per JIS Specification and commercially referred as cs pipes or ms pipes.Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.
|
Chemical composition(mass fraction)(wt.%) of the STKM13C
|
||||
|
C
|
Si
|
Mn
|
P
|
S
|
|
Max 0.25
|
0.35
|
0.30-0.90
|
0.04
|
0.04
|
|
Mechanical properties of grade STKM13C
|
||||
|
Yield (MPa)
|
Tensile (MPa)
|
Impact KV/Ku (J)
|
Elongation A (%)
|
hardness (HBW)
|
|
213 (≥)
|
114 (≥)
|
43
|
31
|
214
|
