Description: 40Cr is under the standard of GB/T 3077-1999 in China, 40Cr steel is one of the most widely used steel in machinery manufacturing field. After quenching and tempering, 40Cr has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. its hardenability is good , when water quench hardening can reach to Ф 28 ~ 60 mm, when oil quenching hardening can reach to Ф 15 ~ 40 mm. In addition, except quenching and tempering, it also fits for cyanide and high frequency quenching process. Has good machinability, when hardness is HB174 ~ 229, the relative cutting machining is 60%. The steel is suitable for manufacturing to medium-sized plastic mold. Equivalent grades: JIS SCr440 DIN 1.7045 DIN 41Cr4/42G4 BS 41Cr4 SS 2245 ASTM 5140 ISO 41Cr4 Chemical composition GRADE C% Si% Mn% P% S% Cr% Cu% Ni% 40Cr 0.37-0.44 0.17-0.37 0.50-0.80 0.035 0.035 0.80-1.10 0.03 0.03 Mechanical properties GRADE Tensile Strength min Yield Strength min Elongation min. contraction min impact min Hardness Max σb/M Pa σs/M Pa δ5/% ψ/% Aku2/J HBS 40Cr 980 785 9 45 47 207 Heat treatment: AC3= 780 C Normalizing: 850 C, oil cooling, hardness 179~229HBS Softening treatment: 740~760 C, holding 4~6 hours, slow cool at 5~10℃/h, cool to under 600 C, Air cooling. Application: Widely used as Gear, sleeve, shaft, spindle, spindle, pin, connecting rod, crankshaft, screws.
45# steel is a kind of medium carbon quenched and tempered steels. The cold plasticity is general, annealing, normalizing is slightly better than quenched and tempered, has high strength and good work
Description: Cr12 mold steel alloy tool steel for a typical domestic implementation of the standards GB/T 1299-1985 chemical composition: C Si Mn S P
GCr15 steel is an alloy content of less, with good performance, the most widely used high carbon chromium bearing steel. After quenching and tempering high hardness, uniform structure, good abrasion r
Description: S45C is a kind of high carbon steel grade which based on the standard of JIS G 4051- 2009. S45C steel has excellent weldability and machinability, and it can be subjected to va
S50C Hot rolled steel bar is one of our main products, Bebon as a S50C Hot rolled steel bar supplier in china, We keep more than 1000 tons S50C Hot rolled steel bar in stock every month. More inform
34CrNiMo6 is alloy high strength steel , because of its good comprehensive mechanical properties, 34CrNiMo6 widely used in the manufacture of the camshaft and connecting rod of engine parts. deliver
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