21CrMoV5-7
Heat Treatment Alloy Steel | 21CrMoV5-7 Round Bars | 21CrMoV5-7 Bright Bars | 21CrMoV57 Forged Round Bars | 21CrMoV5 7 Flat Bars | Blocks
What is 21CrMoV5-7 Alloy Steel Round Bar?
What is 21CrMoV5-7 Alloy Steel?
21CrMoV5-7 material properties are high tensile strength, hardness and wear and tear resistance. 21CrMoV5-7 hardness is extreme. National Steel Industries provides 21CrMoV5-7 round bars, forged bars, bright bars and other sizes of premium quality. Ready stock material of 21CrMoV5-7 in sizes 20mm to 190mm dia. Round bar supplier of 21CrMoV5-7 for over two decades. We are one of the most trusted manufacturer and exporter of 21CrMoV5-7 grade steel Bars. We offer 21CrMoV5-7 round bars in hot rolled and Bright condition.
Heat Treatments such as normalizing, tempering, quenching, etc can be applied to 21CrMoV5-7. It is used to make chains, screws, gears, arms, rollers, and other machine parts. 21CrMoV5-7 applications are in the fields of Shipbuilding, Aircraft Industry, Mechanical Engineering, Oil Industry, Iron and Steel Industry, etc.
National Steel Industries is the most prominent supplier of 21CrMoV5-7 steel. Buy good quality 21CrMoV5-7 round bar and 21CrMoV5-7 sheets from us which are tested for a variety of parameters and delivered with a material test certificate for complete quality assurance.
21CrMoV5-7 Chemical Composition
The Chemical Composition of 21CrMoV5-7 contains a low carbon content of 0.17 - 0.25 %. The material has an Mn content of 0.40 - 0.80 % which imparts hardness to the material. The contents of P is reduced to 0.030% and S is reduced to 0.030 % max as excess content of P and S can damage the quality of steel and can cause the alloys steel to break at low stresses. There is a high Chromium content of 1.2-1.5 % which adds additional yield and tensile on heat treatment.
Chemical Composition of 21CrMoV5-7
C%: 0.17 - 0.25
Si%: max 0.4
Mn%: 0.4 - 0.8
Ni%: max 0.6
P%: max 0.03
S%: max 0.03
Cr%: 1.2 - 1.5
Mo%: 0.55 - 0.8
V%: 0.2 - 0.35
Al%: max 0.03
21CrMoV5-7 Mechanical Properties
21CrMoV5-7 has high hardness, tensile strength and yield strength as mechanical properties. Mechanical properties of the material can be modified by applying heat treatments to the material.
Property Value
Tensile Strength 500-1200 MPa
Yield Strength 400-630 MPa
Elongation 11-23%
Hardness 180-350 HB
21CrMoV5-7 Heat Treatments
-
Forging or hot rolling
-
Normalizing
-
Soft annealing
-
Core hardening
-
Intermediate annealing
-
Case hardening
-
Tempering
-
Carburising