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Gear steel bar

Gear steel bar is a general term for steel bar that can be used to process and manufacture gears. Gear steel is a general term for steel that can be used to process and manufacture gears. Hardenability is one of the important performance indexes of gear steel. It mainly ensures the core hardness of gears of different sizes, and is conducive to controlling the heat treatment deformation of gears. The control of hardenability and hardenability bandwidth of gear steel mainly depends on the chemical composition and its uniformity. That is to control the elements with great influence on hardenability, such as carbon and manganese. The internal control composition range of the steel is determined according to the influence of carbon and alloy elements in the steel on the hardness value of each point of hardenability. 

The mainly steel grades of Gear steel bar are :

Standard

Grades

ASTM A304

H13300,H13350,H13400,H13450,
H40270,H40280,H40320,H40370,
H40420,H40470,H41180,H413000,H41350,H41370,H41400,
H41420,H41450,H41470,H41500,H41610,H43200,H43400,
H43406,H44190,H46200,H46210,H46260,H47180,H472000,
H50401,H50441,H50460,H50461,H50501,H50601,H51200,
H51300,H51320,H51350,H51400,H51450,H51470,H51500,
H51550,H51600,H51601,H61180,H61500,H81451,H86170,
H86200,H86220,H86250,H86270,H86300,H86301,H86370,
H86400,H86420,H86450,H86451,H86500,H86550,H86600,
H87200,H87400,H88220,H92600,H93100,H94151,H94171,
H94301,H10380,H10450,H15220,H15240,H15260,H15410,H15211,
H15351,H15371,H15411,H15481,H15621,1330H,
1335H,1340H,1345H,4027H,4028H,4032H,4037H,
4042H,4047H,4118H,4130H,4135H,4137H,4140H,
4142H,4145H,4147H,4150H,4161H,4320H,4340H,
E4340H,4419H,4620H,4621H,4626H,4718H,4720H,
4815H,4817H,4820H,50B40H,50B44H,5046H,50B46H,
50B50H,50B60H,5120H,5130H,5132H,5135H,
5140H,5145H,5147H,5150H,5155H,5160H,51B60H,
6118H,6150H,81B45H,8617H,8620H,8622H,8625H,8627H,
8630H,86B30H,8637H,8640H,8642H,8645H,86B45H,
8650H,8655H,8660H,8720H,8740H,8822H,9260H,
9310H,94B15H,94B17H,94B30H,1038H,1045H,
1522H,1524H,1526H,1541H,15B21H,
15B35H,15B37H,15B41H,15B48H,15B62H

EN10084

C10E, C10R, C15E, C15R, C16E, C16R

JIS G4053

SCM415,SCM418,SCM420,SCM421,
SCM425,SCM430,SCM432,SCM435,
SCM440,SCM445,SCM822

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