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50CrV4

50CrV4

Spring steel DIN 17221 50CrV4 main features and application

Spring steel DIN 17221 50CrV4 is a kind of pre-hardened material well suited for fabrication requiring shaping by blanking, bending, drawing, extrusion and swaging. Spring steel DIN 17221 50CrV4 allows for closer dimensional tolerances and improved finish and available in several grades. Grade selection is important when considering higher levels of wear resistance.
DIN 17221 50CrV4 spring steels are used in the manufacture of various sizes and particularly important springs like the spiral spring, engine valve springs,large cross-section and elastic parts which work under condition of 400 degrees.

Equivalent table of spring steel DIN 17221 50CrV4 under different standard

GB/T 1222

ASTM

JIS G4801

ISO 683-14

BS 970 Part 2

NF A35-571

TOCT 14595

DIN 17221

50CrVA

A29M
6150

A322 
G61500

SUP10

51CrV4

735A51
735H51

50CrV4

50TØA

50CrV4

Spring steel DIN 17221 50CrV4 chemical composition data:(% in mass)

C

Si

Mn

Cr

p

S

Ni

Cu

Mo

V

0.46-0.54

0.17-0.37

0.50-0.80

0.80-1.10

≤0.030

≤0.030

≤0.35

≤0.25

0.25-0.35

0.10-0.20

Spring steel DIN 17221 50CrV4 mechanical property and delivery condition.

Product Type

Delivery Condition

Mechanical property

Delivery Hardness
HB

Rm
Mpa

Rel
Mpa

A11
%

Z
%

Sample

Hot rolled round bar/square bar

Hot rolled


1270


1130


10


40

Q+T

321

Forged round bar/square bar

Hot rolled

Hot rolled strips

Hot rolled

Cold drawing round bar

Hot processing


1270


1130


10


40

-

-

Hot rolled thin plate

Hot rolled


950

-

12

-

-

-

Cold rolled steel strips

Y+T+QT

785-1180
≥835




Y
T


T=tempering;Q=quenching;QT=globurizing;Y=chilling

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