JIS SNCM439 steel manufacturers and suppliers, as forged supplied in round bars,square/flat bars,rollers,shafts,blocks,as rolled mainly provided in round rods.
SNCM439 steel is a common nickel-molybdenum alloy steel accding to JIS standard. It is a high strength steel and has good comprehensive mechanical properties. SNCM439 steel is widely used in the manufacture of the camshaft and connecting rod of engine parts, poor processability, belongs to the typical difficult-to-machine materials.
Carbon:0.36/0.43; Silicon:0.15/0.35; Manganese:0.60/0.90;
Chromium:0.60/1.00; Molybdenum:0.15/0.30; Nickel:1.60/2.00;
3.Form & Size
– JIS SNCM439 Alloy Steel as Forged
1)Fuhongsteel manufactures and supplies SNCM439 forged steel round bars,square bar,flat bar,shaft,and blocks.
2)SNCM439 alloy steel size available:
(Forged flat bars,Blocks,Shafts and forging pieces can be customized)
– SNCM439 Alloy Steel as Rolled
1)Fuhongsteel is a quality steel supplier of SNCM439 rolled steel round bars.
2)JIS SNCM439 alloy steel round bar size available:
Length: 3,000-10,000mm(can be customized)
4.Tolerances on Dimension & Straightness
3)Deviation from straightness:with 360° rotary device 2mm/meter(max)
2)Mechanical properties -Tensile strength -Yield point -Percentage reduction of area after fracture -Elongation after fracture -Impact test: Impact test must be done on three (3) different ISO-V samples at +20 C°
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,A388,etc.
SNCM439 steel is often used in the manufacture of shaft under high load, such as connecting rod structure. This steel is also made the surface is hard wear-resisting and heart of flexible components, such as gear.It is also widely used in engine camshaft and connecting rod parts.
1)Preheat SNCM439 forged alloy steel carefully;
2)Raise the forging temperature up to 1150-1200°C;
3)Keep the forging temperature above 850°C;
Hardening&Tempering(quenched and tempered and after stress relieved)
1)Heating SNCM439 steel uniformly to 850°C;
2)SNCM439 alloy steel should be quenched in the oil;
3)Heat the material to the temperature 550°C;
4)Soak at this temperature for at least 2 hours;
5)SNCM439 alloy steel should be cooled in the furnace.
1)Heating SNCM439 forged steel thoroughly to 800-850°C;
2)Cool slowly to the temperature 550°;
3)Complete annealing the steel in the air.
1)Heat JIS SNCM439 steel until the temperature up to 850°C;
2)Cool SNCM439 steel down to the room temperature in the air.
Enquiry for JIS SNCM439 steel round bars,square/flat bars,rollers,shafts and blocks.