JIS SCr440 steel manufacturers and suppliers,supplied in Round Rods,Square/Flat Bars,Rollers,Shafts,Blocks and forging pieces,provided as forged and rolled.
SCr440 steel is a structural alloyed carbon steel accding to JIS Japan standard. It is widely used in Low and moderately stressed parts for vehicles,engines and machines where hard,wear resisting surface is needed. The hardness as surface hardened can be about 54 HRC.
Carbon: 0.38/0.43; Silicon: 0.15/0.35; Manganese: 0.60/0.85;
Chromium: 0.90/1.20; Phosphorus: max0.030; Sulphur: max0.030;
3.Form & Size
– JIS SCr440 Alloy Steel as Forged
1)Fuhongsteel are manufacturers and suppliers of SCr440 steel round bars,square/flat bars,shafts,and blocks.
2)SCr440 steel size available:
(Forged flat bars,Blocks,Rollers,Shafts and forging pieces can be customized)
– SCr440 Steel Round Bars as Rolled
1)Fuhongsteel is a quality steel supplier of SCr440 rolled steel round bars.
2)JIS SCr440 steel size available:
Length: 3,000-10,000mm(can be customized)
4.Tolerance on Dimension & Straightness
3)Deviation from straightness:with 360° rotary device 3mm/meter(max)
3)Non metallic inclusions
4)Grain size:more than 5,preferred to 8;
5)Ultra sonic testing 360° complete round testing: Ultra sonic according to Sep1921-84
1)Preheat 41Cr4 alloy steel uniformly and slowly.
2)Raise the forging temperature up to 1160°C.
3)Keep the forging temperature above 860°C.
1)Increase the temperature up to 870°C;
2)It’s better to quench SCr440 steel material in the oil;
3)Heat SCr440 steel to the temperature about 550°C;
4)Hold at this temperature for 2 hours per 25mm thickness;
5)Cool SCr440 steel in the air or furnace.
1)Heat SCr440 steel round bars slowly and thoroughly to 780°C;
2)Cool this steel in the furnace to the temperature 480°;
3)Complete annealing the steel in the air.
1)Heating the temperature up to 860°C;
2)Cool SCr440 steel down to 20°C in the air.
Enquiry for JIS SCr440 Steel Round Rods,Square/Flat Bars,Rollers,Shafts and Blocks.