SAE 9254 Spring Steel

 

 

CHEMICAL COMPOSITION (Typical Analysis in %)

C	Si	Mn	P	S	Cr
0.51-0.59	1.20-1.60	0.60-0.80	0.035 max	0.040 max	0.60-0.80

 

APPLICATION

SAE 9254 spring steel is alloyed, quenched and tempered steel for production of springs with smaller sag tendency, especially of high-stressed automotive suspension springs, produced by cold and hot forming.

Hot Forming and Heat Treatment
Hot rolling	1050-850°C
Hot forming to springs	940-840°C
Normalising	850-880°C / Air
Soft Annealing	640-680°C / Furnace
Hardening	Min 840 / Oil°C
Tempering	375-500°Air

 

Mechanical Properties
Treated for cold shearability (+S)	max. 280HB
Soft Annealed (+A)	max. 248HB
Spheroidized Annealed (+AC)	max. 230HB

 

Hardened and Tempered (+qt), Tempering Temperature 375-500°C
0,2% proof stress Rp0,2 [N/mm²] min.	1300
Tensile Strength Rm [N/mm²]	1450-2050
Fracture Elongation A5 [%]	min 6
Reduction of Area Z [%]	min 25
Notch Impact Energy ISO-V [J]	min 8

 

SIZE RANGE

WIRE ROD – ROUND – AS ROLLED -8 MM to 32 MM DIA (If required we can also supply in spheroidize annealed condition.)

ROUND BARS –  We can provide round bar sizes up to 90mm if required by customer against advanced orders.

 

STOCKING PARTNERS
We keep the materials from Europe and India.