Spring Material 51CrV4
Spring Material 51CrV4
Spring Material 51CrV4
Spring Material 51CrV4
Spring Material 51CrV4

Spring Material 51CrV4

51CrV4 Chemical composition: Carbon C: 0.47 ~ 0.55 Silicon Si: ≤0.40 Manganese Mn: 0.70 ~ 1.10 Sulfur S: ≤0.030 P: ≤0.030 Chromium Cr: 0.90 ~ 1.20 Nickel Ni: ≤0.35 Copper Cu: ≤0.25 Vanadium: 0.10 ~ 0.25

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Product Introduction

Spring Material 51CrV4

Brand: 51CrV4

European standard steel number: 1.8159

Corresponding standard: EN 10089-2002

Technical delivery conditions of hot-rolled steel for tempering springs

51CrV4/DIN 1.8159 STEEL CHEMICAL COMPOSITION

Category: Spring steel

Performance: strength, elasticity, fatigue resistance, hardenability

Tag: Alloy structural steel

Instructions:

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 spring and operating temperature. 300 ℃ valve spring, piston spring, safety valve spring. 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.

Chemical composition % of steel 51CrV4 (1.8159): EN 10277-5-2008

C	Si	Mn	P	S	Cr	V
0.47 - 0.55	max 0.4	0.7 - 1.1	max 0.025	max 0.025	0.9 - 1.2	0.1 - 0.25

Mechanical properties of steel 51CrV4 (1.8159)

Nominal diameter (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Rm - Tensile strength (MPa) (+QT)	1100-1300	1000-1200	900-1100	800-1000	800-950

Nominal thickness (mm):	0.3 - 3
Rm - Tensile strength (MPa) (+A)	700

Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Re - Upper yield strength or R_p0.2 - 0.2% proof strength (MPa) (+QT)	900	800	700	650	600

Nominal thickness(mm):	0.3 - 3
R_p0.2 0.2% proof strength (MPa) (+A)	550

Nominal thickness (mm):	0.3 - 3
A - Min. elongation Lo = 80 mm (%) (+A)	13

A - Min. elongation at fracture (%) transverse, (+QT)

Nominal thickness (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products	9	10	12	13	13

Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Z - Reduction in cross section on fracture (%) (+QT)	40	45	50	50	50

Brinell hardness (HBW): (+A)	248
Brinell hardness (HBW): (+S)	280
Brinell hardness (HBW): (+AC)	230
Vickers hardness ( HV): (+A)	220
Vickers hardness ( HV): (+QT)	370 - 550