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SUP11A Hot Rolled Spring Steel Flat Bar

Group Spring Steel Bars
Min. Order 3 metric ton
Terms of Payment L/C, D/A, D/P, T/T
Update Time 2019-06-06
Item specifics
Width50-200mm
Thickness6-30mm
Delivery ConditionHot rolled only, Quenched and Tempered
Surface ConditionBlack surface

Products Details

Spring steel refers to steel due to the elasticity in the quenched and tempered condition, and specifically for the manufacture of springs and elastic components. Spring steel depends on its ability to elastically deform, i.e., within the prescribed range, the ability to withstand a certain elastic deformation so that the load does not occur in the permanent deformation after the load is removed.Spring steel flat bar is especially used for laminated leaf spring,Agricultural machinery springs,Chain products. 

Quality Standard

JIS G4801 2005 Spring Steels

Chemical Composition(%)

Steel Grade

C

Si

Mn

P

S

Cr

B

SUP 11A

0.56-0.64

0.15-0.35

0.70-1.00

0.030 max

0.030 max

0.70-1.00

0.0005 min

Mechanical Properties(Quenched and Tempered Condition)(T=20°C if not differently stated)

Steel Grade

Tensile Strength Rm (Mpa)

Yield Strength Rp0.2 (Mpa)

Elongation A5 (%)

Area Reduction Ratio C (%)

SUP 11A

1225 min

1080 min

9 min

20 min

Heat Treatment

Steel Grade

Quenching Temperature (°C)

Media

Tempering Temperature (°C)

SUP 11A

830-860

oil

460-520