SAE4140 – BRIGHT BAR Grade Introduction:

SAE 4140 Alloy Steel  Round Bars are cold drawn annealed steel of comparatively superior hardenability in the company of its chromium content that offers some excellent hardness infiltration, and the molybdenum imparts consistency of soaring potency and hardness. These SAE 4140 Alloy Cold Rolled Round Bars reacts well to heat-treatment and is quite simple to machine in the annealed state. 

 

SAE4140 – BRIGHT BAR Grade Application:

 

SAE4140 – BRIGHT BAR Equivalent grades:

USA	Din	BS	BS	Japan
ASTM A29	DIN 1654	EN 10084	BS 970	JIS G4103
4140	1.6523/21NiCrMo2	1.6523/21NiCrMo2-2	805M20	SNCM220

Addition to other grades:

MS, EN1A, EN3B, EN8, EN8D, EN9, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS M2, M35, M42, DIN-1.2714, P20, P20+S, P20+Ni, SCM420, ASTMSA-36, ASTM SA-105 , SAE1018, SAE1010, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.

 

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Price List: 

 

 

 

SAE4140 – BRIGHT BAR Chemical composition: 

The following table shows the chemical composition of SAE 4140 steel:

Standard	Grade	C	Si	Mn	P	S	Cr	Mo
ASTM A29	4140	0.38-0.43	0.15-0.35	0.75-1.00	0.035	0.040	0.8-1.10	0.15-0.25
EN 10250	42CrMo4 / 1.7224	0.38-0.45	0.4	0.6-0.9	0.035	0.035	0.9-1.2	0.15-0.30
JIS G4105	SCM 440	0.38-0.43	0.15-0.35	0.60-0.85	0.03	0.03	0.9-1.2	0.15-0.30

 

SAE4140 – BRIGHT BAR Mechanical Properties: 

 

SAE4140 – BRIGHT BAR Hardness: 

 

SAE4140 – BRIGHT BAR Heat treatment: 

 

SAE4140 – BRIGHT BAR Hardening:

 

SAE4140 – BRIGHT BAR Tempering:

 

SAE4140 – BRIGHT BAR Physical Properties: 

 

SAE4140 – BRIGHT BAR Thermal Properties: 

 

SAE4140 – BRIGHT BAR Forging Properties: 

 

SAE4140 – BRIGHT BAR Stress Reliving: 

 

SAE4140 – BRIGHT BAR Normalizing: 

 

SAE4140 – BRIGHT BAR Annealing: 

 

SAE4140 – BRIGHT BAR Density: 

 

SAE4140 – BRIGHT BAR Machinability: 

 

SAE4140 – BRIGHT BAR Welding: 

 

Supply Cities:

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