IS 11169 Grade 3 Steel — Specifications & Listings

IS 11169

IS 11169 Grade 3 is a chromium vanadium spring steel per Indian Standard IS 11169, equivalent to 50CrV4 and SAE 6150. It offers excellent fatigue strength, toughness and impact resistance, widely used for valve springs, high performance automotive and aerospace springs.

Category: Alloy Steel

Grade Details

Grade	IS 11169 Grade 3
Standard	IS 11169
Description	IS 11169 Grade 3 is a chromium vanadium spring steel per Indian Standard IS 11169, equivalent to 50CrV4 and SAE 6150. It offers excellent fatigue strength, toughness and impact resistance, widely used for valve springs, high performance automotive and aerospace springs.
Applications	valve springs,high performance automotive springs,aerospace springs,coil springs,torsion bars

Equivalent / Similar Grades

Grade	Standard	Region
50CrV4	DIN EN 10089	Germany
50CrV4	EN 10089	Europe
SAE 6150	AISI	USA
SUP10	JIS G4801	Japan
50HFA	GOST	Russia

Chemical Composition (%)

C	Si	Mn	P	S	Cr	V
0.46-0.54	0.10-0.40	0.50-0.90	<=0.035	<=0.035	0.80-1.10	0.10-0.20

Mechanical Properties

tensile_strength	1250-1550 MPa
yield_strength	1100 MPa min
elongation	8-12 %
hardness	40-48 HRC

Typical Available Sizes

Round Bar	10-100 mm
Flat Bar	20-100 mm

Sizes are indicative. Contact seller for exact availability.

Active IS 11169 Grade 3 Listings on M-EX

No active IS 11169 Grade 3 listings at this time.