About S7 Tool & Alloy Steel Round Bars

IMI Alloys India LLP is a major dealer in the nation and worldwide. We are fabricating great S7 Tools & Alloys Steel Round Bars. The products and its variants manufactured by use have great reliability and high flexibility. S7 tool steel is additionally known as a common reason for self-power steel. This steel is having a huge effect. It possesses great resistance when reduced at acceptably high temperatures. This combination of features makes it workable for hot work and cold work areas. It also has a great combination of soaring quality and durability, valuable indirect hot work and hard work tooling. S7 tool Steel is broadly used in the car industry, development, pharmaceutical/chemical industry, oil & gas businesses.

Shock-resisting tool steels are assigned as a bunch of steels concurring to the AISI classification framework. The solidify feature of such steels can be controlled by changing their composition rather than altering the softening particle and grain estimate. These grades of steel possess ideal hardness at higher temperatures. S7 tools may be standing up to common reason air-hardening device steel.

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S7 Tool & Alloy Steel Round Bars

The retaining properties affect resistance and improve durability. On the other hand, S7 Tools & Alloys Steel Round Bars are also exceptional resistant to softening at elevated temperatures. The treating resistance of bunch alloy steels can be upgraded by increasing silicon content, which helps shape the microstructure to stand up to mutilation in tempered conditions. Whether you require S7 tool steel round bars or A2 tool steel round bars, we have the expertise as a stockist and supplier to meet your demands. Explore the exceptional characteristics of each type: S7 Tool Steel Round Bars and A2 Tool Steel Round Bars. Your projects deserve the reliability and performance that our steel materials deliver.

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At IMI Alloys India LLP, we are manufacturing our S7 Tools & Alloys Steel Round Bars possessing an admirable combination of high power and toughness, necessary in moderate hot work, as well as hard work tooling. These products are included measure solidness when air hardened. S7 tool steel may be a stun standing up to review with predominant effect properties combined with high durability, match failure, and estimate soundness amid warm treating. These properties make alloy steel round bars a highly appropriated product for a wide range of applications requiring stun resistance, estimate solidness, and match failure. Commonplace applications incorporate contains plastic shaping kicks the bucket, riveting disk, shaping kicks the bucket. We use the best packaging material for delivery.

How to preserve large s7 tool steel bar stock?

Large S7 tool steel bar stock should be kept clean, dry, and well-ventilated in order to maintain its quality. Moisture and humidity should be kept away from the steel because they might lead to rust and corrosion. Besides, it’s essential to keep the steel away from any heat sources and open flames because heat can bend or deform the material. In order to avoid warping or bending, the steel should also be placed on a flat, level surface. Using rust inhibitors on the bar stock and wrapping it in corrosion-resistant materials like plastic or wax paper are other acceptable practices. It’s also a good idea to regularly check the bar stock for any indications of corrosion or rust.

What are the beneficial s7 tool steel properties of round bars?

High-carbon, low-chromium alloy S7 tool steel is renowned for its exceptional wear resistance, high impact toughness, and good machinability. Toughness is one of the advantageous s7 tool steel properties, which makes it perfect for use in applications that call for high strength and durability. S7 tool steel is the best choice for use in cutting and punching tools due to its exceptional wear resistance. It is perfect for use in applications that demand accurate cuts and finishes since it is relatively simple to machine. S7 tool steel is suitable for use in applications requiring a high level of wear resistance since it is relatively hard, having a Rockwell hardness of 48–52 HRC. Additionally, S7 tool steel has good dimensional stability, making it ideal for use in applications that require precise tolerances. It is also suitable for tempering at temperatures of between 400-800 degrees Fahrenheit, which will result in a range of hardness and toughness depending on the desired outcome.

Tool & Alloy steel Round Bars Stockist

Specifications of S7 Tool & Alloy Steel Round Bars

  • Standard : ASTM A681, ASME SA681
  • Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
  • Form : Round
  • Diameter : 10 mm ~ 900 mm
  • Size : 0.08 mm to 25.00 mm
  • 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 Round Bars

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

S7 Tool Steel Chemical Composition Of Round Bars

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

S7 Tool Steel Properties Of Round Bar

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 Round 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 Round Bars


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


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


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

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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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