About S7 Tool & Alloy Steel Square Bars

Supplying and distributing high-grade products with national and international standards is done at IMI Alloys India LLP. We have set a trademark style on the world industry and created a record. Steel is the oldest and reliable metal that we use. Alloy steel is the higher version of the stainless steel family. The unique combinations of their chemicals give the product stability and compatibility. Special combination of nickel and copper make them very tough and firm. These bars have thickness with fine corners and width. S7 tool & Alloy Steel Square Bars is designed to meet the purpose of resisting the distortion while undergoing heat treatment. Their working hardness is of higher range. They need not be sharpened over again.

All industries need many tools and products in their daily manufacturing and production unit. Accessing distinct clients from remote areas is what we want to do, and we are happy to announce that we are doing that successfully. S7 Tools & Alloys Steel square bars are the most general-purpose steel product.

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Tool Steel & Alloy Steel Square Bars Stockist
They are part of self-hardening steel family. Their toughness and robustness have not to match to other products in the market. Industries dealing with the manufacturing of petrochemicals and other harmful manufacturing have units with harsh media all over. Being immune to such factors is very important, which is the peculiar feature of S7 Tools & alloy Steel square bars.

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S7 Tools & alloy Steel square bars are shock resistant. They can work perfectly at moderate temperatures. Hot as well as cold applications use S7 Tools & alloy Steel square bars as their vital product. S7 Tools & alloy Steel square bars has an excellent blend of tensile strength and longevity. The automotive industry, oil and refineries are the industries of their use. Air hardening gives S7 Tools & alloy Steel square bars size stability too. Being strict in their properties, S7 Tools & alloy Steel square bars are tempered resistant too. IMI Alloys India LLP makes sure that these products reach their destined customer industry as promised on scheduled time. The customized forms of our square bars are also available for different industrial products with high quality features, specifications and working performances.

Tool & Alloy Steel Square Bars Stockist

Specifications of S7 Tool & Alloy Steel Square Bars

  • Standard : ASTM A681, ASME SA681
  • Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
  • Form : Square
  • Diameter : 8mm – 350mm
  • Size : 4 to 100mm
  • Diameter Range : 0.040 mm – 12 mm (0.0016” – 0.4724”)
  • Application : Lathe Tools, Milling Cutter, Cutter Blades, Boring Tools, Twist drills, Milling Knives, Reamers, Taps, Metalcutting saws, Screw Cutting Tools, File Cutter’s Chissels, Drills, Hobs, Drill Bits, Tread cutting tools etc

Equivalent Grades of S7 Tool & Alloy Steel Square Bars

Country USA German
Standard ASTM A681 DIN EN ISO 4957
Grades S7/T41907 1.2355/50CrMoV13-15

Chemical Composition of S7 Tool & Alloy Steel Square Bar

ASTM A681-2008 C Si Mn P S Cr V Mo
S7/T41907 0.45 0.55 0.20 1.00 0.20 0.90 0.03 0.03 3.00 3.50 0.35 1.30 1.80
DIN ISO 4957 C Si Mn P S Cr V Mo
1.2355/50CrMoV13-15 0.45 0.55 0.20 0.80 0.50 0.90 0.03 0.02 3.00 3.50 0.15 0.35 1.30 1.70

Mechanical Properties of S7 Tool & Alloy Steel Square Bars

Properties Metric
Hardness, Rockwell C (air cooled from 941°C, 649°C temper temperature) 41
Hardness, Rockwell C (air cooled from 941°C, 449°C temper temperature) 53
Hardness, Rockwell C (air cooled from 941°C, 149°C temper temperature) 57
Modulus of elasticity 207 GPa
Charpy impact (V-notch; air cooled from 941°C; 425°C temper temperature) 13.6 J
Charpy impact (V-notch; air cooled from 941°C; 649°C temper temperature) 16.3 J
Charpy impact (V-notch; air cooled from 941°C; 200°C temper temperature) 16.9 J
Machinability (1% carbon steel) 70.0 – 75.0%
Poisson’s ratio 0.27-0.30

Thermal Properties of S7 Tool & Alloy Steel Square Bars

Properties Conditions
T (°C) Treatment
Thermal expansion 12.6 x 10-6/ºC 20-200

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Applications For S7 Tool & Alloy Steel Square Bars


Generally, S7 tool steels are used for long run tooling applications, Some main applications for S7 Tool & Alloy Steel Square Bars materials are:

  • Bull Riveters
  • Concrete Breakers (Moll Points)
  • Riveting Dies
  • Powder Metal Dies
  • Notching Dies
  • Dowels
  • Drills
  • Drill Plates
  • Hubs
  • Plastic Mold Dies
  • Cold Forming Dies
  • Blanking Dies
  • Bending Dies
  • engraving dies
  • machined cavities for plastic molding dies
  • die-casting dies
  • shear blades and Master Hobs

Export Destinations for S7 Tool & Alloy Steel Square Bars


Afghanistan, Macau, Nigeria, Vietnam, Bulgaria, Bolivia, Poland, Kazakhstan, Nepal, Gabon, Poland, Sri Lanka, Slovakia, Jordan, Costa Rica, South Africa, Libya, Kuwait, Hungary, Peru, Hong Kong, Russia, Trinidad & Tobago, Saudi Arabia, Japan, Philippines, Qatar, Denmark, Egypt, Indonesia, Chile, Israel, Morocco, Puerto Rico, Zimbabwe, Turkey, Gambia, Ghana, Italy, Belgium, Azerbaijan, Mexico, India, United Arab Emirates, Venezuela, Romania, South Korea, France, Bahrain, Mexico, Mongolia, Angola, Austria, Iran, Norway, Germany, Ireland, Croatia, Spain, Greece, Lebanon, China, Switzerland, Ecuador, Namibia, Sweden, Nigeria, Lithuania, Chile, Czech Republic, Taiwan, Iran, Serbia, Pakistan, Ukraine, Oman, Malaysia, United States, Iraq, Tunisia, Yemen, United Kingdom, Argentina, Brazil, Portugal, Belarus, Canada, Estonia, Singapore, Bhutan, Tibet, Thailand, Australia, Finland, New Zealand, Bangladesh, Netherlands, Colombia, Kenya, Algeria.


Nagpur, Edmonton, Nashik, Busan, Atyrau, Jaipur, Montreal, Jamshedpur, Houston, Seoul, Gurgaon, Al Khobar, Ludhiana, Toronto, Vadodara, Bhopal, Tehran, Sharjah, Chiyoda, Karachi, Vung Tau, Abu Dhabi, Pune, Caracas, Doha, Mexico City, Brisbane, Singapore, Kolkata, Geoje-si, Santiago, Los Angeles, La Victoria, Faridabad, Indore, Bengaluru, Ahvaz, Rio de Janeiro, Chandigarh, Secunderabad, Surat, Granada, Ernakulam, Visakhapatnam, Coimbatore, Hyderabad, Noida, Hong Kong, Milan, Bogota, Jeddah, Rajkot, Moscow, Port-of-Spain, Baroda, Haryana, Ahmedabad, Melbourne, Muscat, Jakarta, Aberdeen, Algiers, Istanbul, Cairo, Ulsan, New York, Riyadh, Thiruvananthapuram, Kuala Lumpur, Courbevoie, Dallas, Chennai, Bangkok, Thane, Ho Chi Minh City, Lagos, Dammam, Sydney, Dubai, Howrah, London, Colombo, Manama, Calgary, Petaling Jaya, Kuwait City, Kanpur, Perth, New Delhi, Ankara, Navi Mumbai, Ranchi, Pimpri-Chinchwad, Madrid, Al Jubail, Mumbai, Gimhae-si, Hanoi.

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IMI ALLOYS INDIA LLP is a notable manufacturer, supplier, stockist, and exporter of bars – round bars, square bars, flat bars, etc. in various materials like Tool Steel, Alloy Steel, and High-Speed Steel in Mumbai, India. We are authorized dealers of Graphite India Limited (POWMEX STEELS DIVISION) and also the only authenticated stockist of Nachi Fujikoshi Corp in India for their High-Speed Steel, Powder Metallurgy, Tool Steel, and Alloy Steel Products.
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