IMI Alloys India LLP is engaged in producing a full range of T4 High Speed Steel Flat Bars. Our flat bare are used in various applications in industries worldwide. These flat bars are easily available in our company at different thicknesses, widths, lengths, and standards, so we are a leading manufacturer of these T4 High-Speed Steel Flat Bars. We also provide flat bars as per the customer’s requirement. Our flat bars are custom-made, so customer satisfies their need for their specific applications.

This T4 High-Speed Steel has many characteristics, so this steel grade has high demand in industrial applications. It also has the first choice for engineering applications. T4 High-Speed Steel shows high corrosion resistance. This alloy is a stainless steel alloy, so it has high tensile and yield strength. Our Flat bars use this grade of steel containing cobalt to increase the hardness at high temperatures. Due to its resisting elements, this grade is mostly used in various industrial applications.

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T4 High Speed Steel Flat Bars

Our T4 High-Speed Steel Flat bars have impact toughness. Our flat bar shows resistance to corrosion and resistance. These flat bars are hardenable by the water and heat treatment process. Due to this alloy, our Flat Bars withstand high temperatures without losing their hardness. Our T4 High Speed Steel Flat Bars have good physical properties like density, thermal conductivity, electrical resistivity, specific heat capacity, and melting point. Our products also show mechanical properties such as modulus of elasticity and Poisson’s ratio. Our flat bars are used in turning tools, cutters, forming, planning, and milling cutters for roughing work.

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At IMI Alloys India LLP, T4 High Speed Steel Flat Bars are executed under the proper guidance of our company’s professional expert team. They have a lot of experience in the manufacturing field, so they guide our workers to produce high-quality flat bars with complete accuracy. Our manufacturing department manufactures the flat bars using high-quality alloys, and we take these alloys from reliable vendors. Our company provides the latest technology and tools. These tools helped to bring out a high-quality product.

Flat Bars

Specifications of High Speed Steel T4 Flat Bars

  • Standard : ASTM A600, ASME SA600
  • Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
  • Form : Flat
  • Thickness : 2-20mm x width 10-100mm
  • Length : 100 mm to 10,000 mm
  • Surface Condition : Black, Grinded, Turned Bright, Machined Proof
  • 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 High Speed Steel T4 Flat Bars

Country USA German Japan
Standard ASTM A600 DIN EN ISO 4957 JIS G4403
Grades T4/T12004 S 18-1-2-5/1.3255 SKH3

Chemical Composition of T4 High Speed Steel Flat Bar

ASTM A600 C Mn P S Si Cr V W Mo Co
T4 0.70 0.80 0.10 0.40 0.03 0.03 0.20 0.40 3.75 4.50 0.80 1.20 17.50 19.00 0.40 1.00 4.25 5.75
DIN ISO 4957 C Mn P S Si Cr V W Mo Co
S 18-1-2-5/1.3255 0.75 0.83 0.40 0.03 0.03 0.45 3.80 4.50 0.80 1.20 17.50 18.50 0.50 0.80 4.50 5.50
JIS G4403 C Mn P S Si Cr V W Mo Co
SKH3 0.73 0.83 0.40 0.03 0.03 0.45 3.80 4.50 0.80 1.20 17.00 19.00 4.50 5.50

Mechanical Properties of High Speed Steel T4 Flat Bars

Density [g/cm3] 8.70
Properties Metric Imperial
Modulus of elasticity 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

Thermal Properties of High Speed Steel T4 Flat Bars

Properties Metric Imperial
Thermal expansion co-efficient 11.9 µm/m°C 6.6 µin/in°F

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Applications For High Speed Steel T4 Flat Bars


Generally, high speed steels are used for machining at high speeds. HSS T4 steel materials are widely used for:

  • Broaches
  • Drills
  • Hobs
  • Knurling Tools
  • Lathe Tools
  • Milling Cutters
  • Nut Piercers
  • Planer Tools
  • Reamers
  • Shaving Tools
  • Taps
  • Thread Cutting Tools

Export Destinations for High Speed Steel T4 Flat Bars


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


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

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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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