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



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



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.


We keep the materials from Europe and India.


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