60SiCr7 SUP7 60Si2MnA high carbon manganese spring steel strip
Guangzhou Cgood Steel Co., Ltd is a professional manufacturer, producing 60SiCr7, SUP7, 60Si2MnA spring steel strip with heat treatment. 60SiCr7, SUP7, 60Si2MnA are spring alloy steel element with high hardenability, high toughness and plasticity, low decarburization, good tempering stability, good working performance and low cost. It is suitable to make leaf springs for heavy, medium and small automobiles and other medium-section leaf springs and spiral springs.
Generally speaking, the chemical composition of 60SiCr7, SUP7 and 60Si2MnA spring steel should meet the following requirements:
60SiCr7, SUP7 and 60Si2MnA steel composition
Carbon: 0.54%-0.60%,
Silicon: 1.5%-2.0%,
Manganese: 0.70-1.00%
Phosphorus: max 0.035%
Sulfur: max 0.035%
Chromium: max 0.35%
60SiCr7, SUP7 and 60Si2MnA are equivalent materials.
60SiCr7 as DIN standard,
SUP7 as Japanese standard
60Si2MnA as GB standard
Heat treatment process of 60SiCr7, SUP7, 60Si2MnA steel
The treatment process of these 3 steel grade materials mainly includes annealing, cold rolling, quenching and tempering.
Factory production 60SiCr7, SUP7, 60Si2MnA Specification range
Cold rolled condtions: 21-28HRC
Annealed conditions: below 19HRC
Hardened and tempered condtions: 29-59HRC
Thickness: 0.15mm to 5.50mm
Width: 2mm to 600mm
Edge: slit, round, square edge
Surface: nature, bright, polished, white, blue, ect
Factory product photo
