SSA7225 High Tensile Steel (Q&T)

Type of steel and characteristics:
Low alloy chromium, molybdenum heat treatable steels

Components with large and medium cross sections, requiring with high tensile strength and toughness, automotive engineering and gear and engine construction, e.g. crankshafts, steering knuckles, shafts, connecting rods, spindles, intermediate gears, pump and gear shafts. It is also suitable for barrels of small fire arms. Also possessed good surface hardenability.


SSA7225 steel are equivalent to 4140 steel, 709 steel, SCM440 steel.


Tough AISI 4140 Steel Supplier In Malaysia

As Malaysia’s premier specialty steel supplier, Special Steel proudly presents AISI 4140 Steel, renowned as SSA7225 High Tensile Steel, which also equivalent to 709 Steel and SCM440 Steel.

Unlock the potential of SSA7225, a low-alloy chromium-molybdenum heat-treatable steel. Ideal for components demanding high tensile strength and toughness, this steel excels in automotive engineering, gear, and engine construction. From crankshafts to steering knuckles, trust AISI 4140 for superior performance.

Why choose Special Steel? With a 35-year legacy, we stand as the leading supplier, ensuring over 6000 clients receive top-notch products, including the unmatched AISI 4140. Elevate your projects with our industry expertise and commitment to excellence.


Chemical Composition (%) C Si Mn Cr Mo
0.38-0.45 ≤ 0.40 0.60-0.90 0.90-1.20 0.15-0.3
Nearest Equivalent AISI 4140 JIS SCM440 BS EN 19 DIN 42CrMo4 SIS 2244

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