ผลิตภัณฑ์โลหะ
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS G 4052 : 2016
Structural steels with specified hardenability bands
2016
43
JISf 2021 V.1
This Standard specifies steels mainly intended for machine structural use with specified hardenability bands which are manufactured by hot rolling, hot forging and hot extruding. This Standard is not applicable to steel tubes.