About H11 Tool & Alloy Steel Round Bars

IMI Alloys India LLP is a provider and fabricator well known for H11 Tool & Alloy Steel Round Bars. Our steel bars are highly impacted due to its toughness as well as characterized by red hardness. We offer these steel round bars in assorted sizes, shapes, standards, and specifications and required customized bars to fit in the system as on-demand. These are available and largely demanded in forged, threaded, hot worked and cold worked types and many others.

These are applied in high-stress systems components as tool holders, hot punches, die casting dies, forging dies, ejector pins, hot shear blades, extrusion tooling and gripper dies etc. In Aerospace, high-stress structural parts like aircraft landing gear, aircraft dart components are largely introduced to these bars.

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H11 Tool & Alloy Steel Round Bars

IMI Alloys India LLP offers H11 Steel Round bars endow with excellent resistance against various media containing acids, chlorides and halides. Our round bars are mostly subjected to heat operating systems due to its excellent thermal conductivity. These round bars are highly resistant to thermal fatigue cracking and crevice. Intergranular corrosion is eliminated and it opposes pitting excellently. This grade is conductive to thermal and electro potential moreover combat to chemical reducing agents. As a result, corrosion applications are using these bars with a high anti-corrosive feature.

Tool Steel T20811 Round Bar, ASME SA681 H11 Hot Forged Round Bars, Chrome Moly Steel H11 Round Bars Dealer, CrMo H11 Cold Drawn Round Bars, H11 Tool & Alloy Steel Industrial Round Bars, Buy Comprehensive Variety of Quenched & Tempered H11 Alloy Steel Bar, Hot Die Tool Steel H11 Hot Rolled Round Bars, Hot Die Steel H11 Bars, Hot Work Tool Steel H11 Round Bars, X37CrMoV5-1 Black Round Bars Stockist in India.

H11 tool and steel alloy is stable and austenitic grade consisting of resisting elements. It is 5% chromium hot work tool steel and gives stability without deformation and elongation at high temperatures. It is good weldability impassive to heat-affected regions. It has good formation through low feeds, speeds and controlled cut depth. It turns magnetic into non-magnetic by the annealing process. It can be cold worked to evade embrittlement and work hardening is excellent. It can be formed by both hot as well as a cold treatment methods.
IMI Alloys India LLP provides the entire range of round bars of grade H11 tool steel alloy with an excellent surface finish. We use reliable basic material to maintain quality standards. These round bars achieve a surface finish and strong structure. It is tested for hardness and other properties and then we deliver our product in good covering.
Tool & Alloy steel Round Bars Stockist

Specifications of H11 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 H11 Tool & Alloy Steel Round Bars

Country USA German Japan British
Standard ASTM A681 DIN EN ISO 4957 JIS G4404 BS 4659
Grades H11/T20811 1.2343/X37CrMoV5-1 SKD6 BH11

Chemical Composition of H11 Tool & Alloy Steel Round Bar

ASTM A681 C Mn P S Si Cr V W Mo
H11/T20811 0.35 0.45 0.20 0.60 0.03 0.03 0.80 1.25 4.75 5.50 0.30 0.60 1.10 1.60
DIN ISO 4957 C Mn P S Si Cr V W Mo
1.2343/X37CrMoV5-1 0.28 0.35 0.10 0.40 0.80 1.20 2.70 3.20 0.40 0.70 1.10 1.50
JIS G4404 C Mn P S Si Cr V W Mo
SKD6 0.32 0.42 0.50 0.03 0.03 0.80 1.20 4.50 5.50 0.30 0.50 1.00 1.50
BS 4659 C Mn P S Si Cr V W Mo
BH11 0.32 0.40 0.40 0.35 0.35 0.85 1.15 4.75 5.25 0.30 0.50 1.25 1.75

Mechanical Properties of H11 Tool & Alloy Steel Round Bars

Properties Metric Imperial
Hardness, Rockwell C (air cooled from 982°C, 45 mins) 52.5 52.5
Hardness, Rockwell C (air cooled from 1010°C, 45 mins) 56 56
Hardness, Rockwell C (air cooled from 1038°C, 45 mins) 57 57
Modulus of elasticity 207 GPa 30000 ksi
Modulus of elasticity (@538°C/1000°F) 159 GPa 23000 ksi
Modulus of elasticity (@204°C/400°F) 190 GPa 27500 ksi
Charpy impact (V-notch; air cooled from 1010°C;535°C temper temperature) 13.6 J 10.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;650°C temper temperature) 27.1 J 20.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;370°C temper temperature) 33.9 J 25.0 ft-lb
Machinability (1% carbon steel) 75.0 – 80.0% 75.0 – 80.0%
Poisson’s ratio 0.27-0.30 0.27-0.30

Thermal Properties of H11 Tool & Alloy Steel Round Bars

Properties Metric Imperial
Thermal expansion (@20-100ºC/68-212ºF) 11.9 x 10-6/ºC 6.63 µin/in°F
Thermal conductivity (@100ºC/212ºF) 42.2 W/mK 292.9 in/hr.ft².°F

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Applications For H11 Tool & Alloy Steel Round Bars


Generally, H11 tool steels are used for long run tooling applications, Some main applications for H11 Tool & Alloy Steel Round Bars materials are:

  • Hot punches
  • die casting dies
  • forging dies
  • hot shear blades
  • hot gripper dies
  • extrusion tooling

Export Destinations for H11 Tool & Alloy Steel Round Bars


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


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

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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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