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Shock-Resisting Tool Steel

S7 Tool Steel

AISI S7

S7 is a shock-resisting tool steel known for its high impact toughness and good hardness. It combines outstanding resistance to shock loading with moderate wear resistance and excellent dimensional stability during heat treatment.

FlatsSquaresRounds
S7
S7 Tool Steel — India to US
Grade Overview

S7 Tool Steel — AISI S7

S7 is a shock-resisting tool steel that delivers exceptional impact toughness combined with good hardness in the range of 54–56 HRC. As an air-hardening steel, it provides excellent dimensional stability during heat treatment and good through-hardening characteristics, making it a reliable choice for demanding applications involving repetitive shock loading.

This versatile grade is suitable for both hot and cold work applications. S7 offers good machinability in the annealed condition and moderate wear resistance, making it the preferred choice for chisels, punches, shear blades, gripper dies, forming tools, and plastic injection molds where impact toughness is the primary requirement.

Key Characteristics

Properties & Applications

Key Characteristics
  • Exceptional impact toughness and shock resistance
  • Good wear resistance with high hardness (54–56 HRC)
  • Excellent dimensional stability during heat treatment
  • Air-hardening with good through-hardening capability
  • Good machinability in annealed condition
  • Suitable for both hot and cold work applications
Typical Applications
  • Chisels and punches
  • Shear blades and knives
  • Gripper dies and forming tools
  • Blanking and piercing tools
  • Sledge hammer inserts
  • Plastic injection molds
  • Die casting dies
Specifications

Detailed Specifications

Detailed specifications, chemical composition, and heat treatment parameters for S7 tool steel are available on request.
Contact us to discuss your specific application requirements.
Available Forms

S7 Mode of Supply

S7 tool steel is supplied in flat, square, and round bars of all standard and custom sizes.

S7 steel flat barsFlats
S7 steel square barsSquares
S7 steel round barsRounds
Interested in S7?

Let’s Discuss Your Application.

Tell us the application, required properties, and quantities. We’ll confirm supply capability and walk you through our process.