51CrV4 EN 10250-3-1999 Alloy special steel wire

European standard steel

1.8159

Correspondence standard

EN 10250-3-1999

Open steel die forgings for general engineering purposes. Alloy special steel

Classify

Spring steels

Performance

Strength elastic impact toughness hardenability

Label

Structural alloy steel

Explain

51CrV4(1.8159) spring steel has good mechanical properties and process properties, high hardenability, adding vanadium to make the steel grain refinement, reduce overheating sensitivity, improve strength and toughness, with high fatigue strength, yield ratio is also high, but poor weldability, cold deformation plasticity is low.

51CrV4 is a higher grade spring steel, used as a large section of high load important springs and operating temperature<300 ℃ valve springs, piston springs, safety valve springs. Standard parts such as coil slotted cylindrical pins can also be manufactured.

51CrV4 corresponds to the German brand 50CrV4 (1.8159) and the French brand 51CrV4.

Minimum value

0.47

-

0.7

-

-

0.9

0.1

Maximum

0.55

0.4

1.1

0.035

0.035

1.2

0.25

t≤160

Tempering ≥800

Tempering ≥600

Tempering (longitudinal elongation) ≥13

t≤160

Tempering ≥800

Tempering ≥600

Tempering (lateral elongation) ≥9

GB

ISC

CNS

JIS

KS

ASTM/AISI

UNS

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

SS14

BS EN/BS

50CrVA

A23503

SUP10

SUP10

SPS6

6150

G61500

51CrV4(51CrV4)

1.8159

50CV4

50Xφ

A

2230

735A50