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1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

Categories	Carbon Steel Coils
Brand Name:	OEM/ODM
Model Number:	65MN
Certification:	ISO
Place of Origin:	CHINA
MOQ:	3 tons
Price:	negotiable
Payment Terms:	T/T, Western Union, L/C
Supply Ability:	3000 tons per month
Delivery Time:	within 15 days
Packaging Details:	standard seaport packing or as custom request
Standard:	AISI, ASTM, BS, DIN, GB, JIS
Steel Grade:	Q195, Q235, SPCC,65Mn, 40CR, S45C,CK75....
Technic:	Cold rolled
Width:	10-1500mm
Thickness:	0.8-8mm
Port:	Shanghai

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Wuxi ShiLong Steel Co.,Ltd.

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1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

65MN Chemical composition

C(％)	0.62-0.70	Si(％)	0.17-0.37	Mn(％)	0.90-1.20	P(％)	≤0.035
S(％)	≤0.035	Cr(%)	0.25max	Ni(%)	0.25max

Equivalent Of 65Mn alloy Spring Steel

USA	Germany	China	Japan	France	England	Italy	Poland	ISO	Austria	Sweden	Spain
AISI/SAE/ASTM/UNS	DIN,WNr	GB	JIS	AFNOR	BS	UNI	PN	ISO	ONORM	SS	UNE
1066		65Mn			080A67

Heat treatment Related

Annealing of 65Mn Spring Steel

At first Slowly heated to 730 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. Then 65Mn tool steel will get MAX 250 HB (Brinell hardness).

Hardening of 65Mn Spring Steel

At the beginning, 65Mn steels should be heated uniformly to 830-860°C (1526-1580°F) until completely heated through. After about 30 min per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil. Tempering of 65Mn Spring Steel

Tempering of 65Mn steels is performed at 540°C, Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Hardness values at different temperatures after tempering

Mechanical Properties

The mechanical properties of 65Mn Spring Steels are outlined in the following table.

Tensile strength	Conditions to yield strength	Elongation	Reduction of area	Hardness (Hot Rolled)
σb (MPa):≥980	σ0.2 (MPa):≥785	δ 5 (%):≥8	ψ (%):≥30	≤302HB;

Applications

65Mn steel, after heat treatment and cold drawing hardening, high strength, it has a certain toughness and plasticity; In the same surface hardening case, completely and the fatigue limit and alloy spring. But hardenability poor, mainly for the smaller size of the spring, such as regulating speed regulating spring, spring load, general machinery in the round, square spiral spring or pull wire for small mechanical spring.

Regular size and Tolerance

Steel round bar: Diameter Ø 2mm – 3000mm

Steel plate: Thickness 2mm – 3000mm x Width 100mm – 3500mm

Steel Hexagonal bar: Hex 5mm – 105mm

Others 65Mn have not specified size, pls contact our experienced sales team.

Processing

Moreover, GB 65Mn Spring Steel round bar and flat sections can be cut to your required sizes. 65Mn Spring Steel ground bar can also be supplied by us, providing a high quality Spring Steel precision ground Spring Steel bar to your required tolerances. And GB 65Mn steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

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1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

66Mn4 65mn Carbon Spring Steel Strip

65Mn Spring Steel Strips

65mn spring steel

1.1240 1.1260 65G 65Mn4 66Mn4 65mn Carbon Spring Steel Strip

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We have enough steel sheets in stock, can start cutting instantly，which can make us ship the delivery within 7-15 days(depends on the certain situation).

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