Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
JIS
Standard Number
G 3445(Carbon steel tubes for machine structural purposes )
Grade STKM11A STKM12A STKM12B STKM12C STKM13A STKM13B STKM13C STKM14A STKM14B STKM14C STKM15A STKM15C STKM16A STKM16C STKM17A STKM17C STKM18A STKM18B STKM18C STKM19A STKM19C STKM20A [ All grade ]