Tool Grade

S7 Steel

Shock resistant

Chrome-molybdenum tool steel, air or oil hardening, with very high impact and shock resistance. For tools and dies subject to dynamic loads and blows. Its low carbon produces a tough martensite that absorbs the energy of impacts without cracking; also suitable for warm work up to 540 °C.

Standards and equivalents

SAE / AISI	EN	DIN	JIS
S7	50CrMoV13-15	1.2355	—

Chemical composition

%	C	Si	Mn	Cr	Mo	V	P	S
Min	0.45	0.20	0.20	3.00	1.30	—	—	—
Max	0.55	1.00	0.90	3.50	1.80	0.35	0.030	0.030

Supply condition

Hot forgedAnnealed

Hot rolledAnnealed

Available package sizes

Plates1/4" – 12"6 mm – 305 mm

Round bars1/2" – 4"13 mm – 102 mm

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Typical applications

• Impact punches
• Industrial chisels
• Shear blades
• Forging dies
• Stamping dies
• Ejector pins
• Industrial mandrels
• Pneumatic tools
• Heading dies

Note: The information and values in this data sheet are provided for reference only and may vary depending on manufacturing, treatment and application conditions. They do not constitute guaranteed specifications, so use and interpretation of this data is the user's responsibility.

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