Laminated Leaf Springs Raw Material Hot Rolled Spring Steel Flat Bar

1 / 5

Laminated Leaf Springs Raw Material Hot Rolled Spring Steel Flat Bar

Still deciding? Get samples of $ !

Request Sample

Send Inquiry

Product Description

Basic Information

Model NO.

5x40mm-35x135mm

Certification

ISO

Production Line

Short Stress Production Line

Thickness

4~35mm

Width

40~125mm

Length

3m-7m

Surface Type 1

Smooth Plain

Surface Type 2

Double Grooved

Raw Material

Continuous Casting Billets

Usage

To Make Leaf Spring

Application

Auto Parts

Capacity

400,000 Tons/Year

HS Code

72283000

Transport

Export Packing

Product Description

Laminated Leaf Springs Raw Material Hot Rolled Spring Steel Flat Bar

Ranked top three in the automotive industry for manufacturing advanced quality Spring Steels Flat Bars and Leaf Springs. Steel billets are produced in-house with a capacity of 1000-2000MT/Day, allowing for customized steel production based on specific requirements. Certificated by ISO9001: 2008, we are a highly acclaimed manufacturer and exporter of spring flat steel products.

Specifications

✔Grades: GB (65Mn, 60Si2Mn), DIN (60Si7, 55Si7), JIS (SUP6, SUP7, SUP9), ASTM (SAE5155, 5160H)

✔Width Range: 40mm to 165mm

✔Thickness Range: 5mm to 35mm

✔Length: Customized 4-7 meters

Terms & Features

Package

2.0 tons each bundle, stainless steel strips

Min Order

25-27MT (One 20'' container)

Delivery Time

20-40 working days

Price Terms

FOB, CFR, CIF

High Strength & Toughness

Good Hardenability & Plasticity

Excellent Decarburization Resistance

Strong Resistance & Good Elasticity

Perfect Machinability

Chemical Composition & Standards

Standard	Grade	C	Si	Mn	Cr	V	P (≤)	S (≤)
DIN 17221	60SiCr7	0.57-0.65	1.50-1.80	0.70-1.00	0.20-0.40	-	0.030	0.030
DIN 17221	55Cr3	0.52-0.59	≤0.40	0.70-1.00	0.70-1.00	-	0.025	0.025
JIS G4801	SUP9	0.52-0.60	0.15-0.35	0.65-0.95	0.65-0.95	-	0.030	0.030
JIS G4801	SUP10	0.47-0.55	0.15-0.35	0.65-0.95	0.80-1.10	0.15-0.25	0.030	0.030
ASTM SAE	5160/H	0.55-0.65	0.15-0.35	0.65-1.10	0.60-1.00	-	0.040	0.030
ASTM SAE	6150	0.47-0.54	0.15-0.35	0.60-1.00	0.75-1.20	≤0.15	0.040	0.030

Product Gallery

Frequently Asked Questions

What are the primary applications for this spring steel flat bar?

The material is specifically designed as raw material for laminated leaf springs used in auto parts and various automotive industry applications.

What steel grades can you provide?

We supply a wide range of standards including GB (65Mn, 60Si2Mn), DIN (60Si7, 50CrV4), JIS (SUP6, SUP9, SUP10), and ASTM (SAE5160H, 6150).

What are the available dimensions?

Thickness ranges from 4mm to 35mm and width ranges from 40mm to 165mm. Lengths can be customized between 4 to 7 meters.

What is your production capacity and MOQ?

Our annual production capacity is 400,000 tons. The minimum order quantity (MOQ) is 25-27MT, which fits into one 20'' container.

How is the product packaged for export?

The steel is packed in bundles of approximately 2.0 tons each, securely fastened with stainless steel strips to ensure safety during transport.

What are the key technical features of your spring steel?

Our spring steel features high strength and toughness, excellent hardenability, superior decarburization resistance, and strong elasticity for optimal performance.