60Si2MnA YB /T 5058-2005 spring wire

60Si2MnA YB /T 5058-2005 spring wire is a widely used alloy spring steel material, with good hardenability, tempering stability, hot working performance and low decarbonization tendency. After heat treatment, its comprehensive mechanical properties are better than carbon steel, but there are overheating sensitivity and tempering brittleness.

Material designation	60Si2MnA
Correspondence standard	YB /T 5058-2005 Cold-rolled spring and tool steel strips
Sort out	Alloy steel
Property	Elastic hardenability
Tag	Spring steel
Instructions	The steel is a widely used spring steel with good hardenability, high strength and elastic limit after quenching + tempering, high yield ratio and anti-relaxation ability, and high tempering stability. However, the decarbonization tendency is large, the cold deformation is poor, and the cutting performance is poor. It is mainly used in the manufacture of various elastic retainers, rings and springs that work below 250°C, with a thickness of less than 10mm and a diameter of less than 25mm. The amount of steel in the fastener industry is smaller than 65Mn, mainly used for the production of various elastic gaskets, rings, pins and other products. Generally not used for the production of bolts, screws, nuts. Selection suggestions: All kinds of elastic washers, pins and clasp, etc., working in a non-corrosive environment, strength 42~54HRC, recommended use.

60Si2MnA spring_wire

60Si2MnA Chemical Element content (%)

Ingredient	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum value	0.56	1.6	0.6	-	-	-	-	-
Maximum value	0.64	2	0.9	0.03	0.03	0.35	0.35	0.25

* The chemical composition of this grade shall comply with the provisions of GB/T 1222-1984.

60Si2MnA YB /T 5058-2005 spring wire is a kind of alloy spring steel material with excellent comprehensive properties, which has been widely used in many fields. In the process of use, attention should be paid to its decarbonization tendency and cutting performance, and corresponding measures should be taken to ensure product quality and service life.

60Si2MnA mechanical properties

Thickness t mm	Strength of extension σb Mpa	Elongation or elongation after breaking δ %
0.10~3.00, annealed steel strip	≤880	≥10
0.10~3.00, chilled steel strip	785~1175	-

Examples of machined fastener products

60Si2MnA (GB 1222/3525/5218; Some products processed by YB 5058
Name	Model number	Performance class	Specification
Elastic retainer for shaft	GB 894.1-1986	47~54HRC	16~32
Snap ring	6HB 8121-2002	45.5~49.5HRC	25~200
Butterfly spring	GB/T 1972-2005	E=206000N/mm2	-

Note: Butterfly spring standard GB/T 1972-2005 specified material grade, standard and performance. Elastic modulus of E-disc spring material.

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