leaf spring raw material spring steel flat bar 55Cr3

Specifications

Measurement

Thickness

Width

Length

6mm~35mm

40mm~150mm

4000mm-8000mm (customized)

Certificate

ISO 9001: 2008

Standard

GB JIS DIN SAE ASTM AISI

Edge(Cross Section)

round edge profile to DIN59145

Square edge profile to DIN59146

Bundle Weight

Around 2.0 MT

MOQ

10MT or Can be Negotiated

Technique

Hot Rolled

Surface

Grooved

Plain-smoothed

Quenchant

Oil/Water

Raw Material

Concast Steel Billets (150x150mm)

Temper Stressing

480°C-560°C

Quenching Temprature:

800°C-1000°C

OEM

Material Composition Offered by Customers

Application

sup9/sup9a/sup10/55Cr3/50CrV4

Automotive suspension springs

sup7/9260/30CrMnB/27CrMnB

Rotary tools and Blades

Capacity

1000-2000 MT/Day, Over 400,000 MT/Year

Payment Term

100% L/C at Sight.

30% T/T Down Payment, Balance Against B/L Copy.

Shipment Time

10-20 working days after confirming the order

Packing

In bundles. Each bundle packed with 2 steel strips and 3 steel wires.

Chemical Compositional Chart

Standard

Material/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

0.03

0.03

55Cr3

0.52-0.59

≤0.40

0.70-1.00

0.70-1.00

0.025

0.025

60Cr3

0.56-0.64

0.17-0.37

0.70-1.00

0.70-1.00

0.025

0.025

50CrV4

0.47-0.55

0.15-0.40

0.70-1.00

0.70-1.10

0.10-0.20

0.03

0.03

JIS G4801

SUP6

0.55-0.65

1.50-1.80

0.70-1.00

0.035

0.035

SUP7

0.55-0.65

1.80-2.20

0.70-1.00

0.035

0.035

SUP9

0.52-0.60

0.15-0.35

0.65-0.95

0.65-0.95

0.03

0.03

SUP9A

0.56-0.64

0.15-0.35

0.70-1.00

0.70-1.00

0.03

0.03

SUP10

0.47-0.55

0.15-0.35

0.65-0.95

0.80-1.10

0.15-0.25

0.03

0.03

SAE J1268

9260/H

0.55-0.65

0.70-1.20

0.65-1.10

≤0.2

0.04

0.03

5155

0.50-0.60

0.15-0.35

0.65-1.10

0.60-1.00

0.04

0.03

5160/H

0.55-0.65

0.15-0.35

0.65-1.10

0.60-1.00

0.04

0.03

6150

0.47-0.54

0.15-0.35

0.60-1.00

0.75-1.20

≤0.15

0.04

0.03