56Si7 Hot Rolled Spring Steel Flat Bar
56Si7 Hot Rolled Spring Steel Flat Bar
56Si7 Hot Rolled Spring Steel Flat Bar
56Si7 Hot Rolled Spring Steel Flat Bar
56Si7 Hot Rolled Spring Steel Flat Bar
56Si7 Hot Rolled Spring Steel Flat Bar
Model
56Si7

Item specifics

Width
40-160mm
Thickness
6-30mm
Delivery Condition
Hot rolled only, Quenched and Tempered
Surface Condition
Black surface

Review

Description

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

BS EN 10089-2002 Hot rolled steels for quenched and tempered springs

Chemical Composition(%)

Steel Grade

C

Si

Mn

P

S

56Si7

0.52-0.60

1.60-2.00

0.60-0.90

0.025 max

0.025 max

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 (%)

56Si7

1275 min

1180 min

5 min

25 min

Heat Treatment

Steel Grade

Quenching Temperature (°C)

Media

Tempering Temperature (°C)

56Si7

870

oil

480