Chrome Vanadium Steel
1. SAE-Society of automotive engineers:6140 6150 6150
2. JIS -Japanese industrial standards:50BV30 40CRV
product quality
Material Description

Chrome vanadium steel with good hardenability for deep quenching, less tendency to temper brittleness, good elevated temperature processability, good impact

Commonly used in: locomotive connecting rod, crankshaft, hand tool extension rod, socket, bolt, spring ( valve spring, piston spring, safety valve spring )

Commonly used materials: 50BV30, 40CRV (6140) chrome vanadium steel


If you have other requested specification, please contact with sales or highlight on the order.


Truss Head Screw

Tool parts

Hand tools

All kinds of screws


Chemical Composition

SAE Chrome Vanadium Steel Chemical Composition

UNS SAE Chemical Composition %
C Mn P S Si Ni Cr Mo Other
G61500 6150 0.48~0.53 0.070~0.90         0.80~1.10   V:0.15 以上
  Chemical Composition %
C Si Mn P S Cr Mo
40CRV 0.38~0.43 0.15~0.35 0.60~0.90 0.030max 0.030max 0.50~0.70  




Material Specification

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Mechanical Chart

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