About T4 High Speed Steel Round Bars

Many industrial clients use high speed steel as they have the high alloy content. The primary chemical is tungsten with the addition of molybdenum. A minimal amount of chromium, cobalt with vanadium, completes their structure. The carbon content is around 0.65% of the total weight of the product. T4 high speed steel round bars have a superb hardness at room temperature of at least 64 HRC. They are exposed to heat treatment which generates complex metallic carbides in high quantities. These carbides are vanadium carbides or tungsten carbides which are released in steel substrate. These carbides make the round bars very tough.

By checking corrosion resistivity and wearing test, T4 high speed steel round bars are the best preference. Being a member of the Stainless Steel family, they have excellent tensile strength. The yield power is also very high for these round bars. The basic alloy of these round bars protects them from getting reduced.

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T4 High Speed Steel Round Bars
The grade of T4 is slightly magnetic, so they are broadly used in a diverse range of applications. In industrial sectors where high mechanical power is needed, these bars are used in this area broadly. The corrosion proprieties have no significant effect on them. They have resistant particles that fight abrasion. Processes like heat treatment is conducted on round bars to check their load pressure property. Such treatments are then followed by water quenching. Cold working treatments are also provided to them to avoid being brittle.

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We understand the working process of modern applications, and from that point of view, we design our properties of T4 High Speed Steel Round Bars. Our manufactured bars are highly utilized in planning and slotting instruments because we provide qualitatively, great hardness, surface finishing for our steel round bars. The grade surface and furnishing are the features that contain excellent comprehensive performance. In addition, our T4 High Speed Steel Round Bars provide good resistive properties. We manufacture and offer round bars in customized and defaults forms such as shapes, sizes, dimensions, weights, and lengths as per the necessity, needs of clients, and industrial applications. After testing the product, we make testing documents and proceed further to export them.
Round Bar

Specifications of High Speed Steel T4 Round Bars

  • Standard : ASTM A600, ASME SA600
  • Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
  • Form : Round
  • Diameter : 2mm to 100mm depending on grades
  • 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 Round 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 Round 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 Round 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 Round 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 Round Bars

Industries

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 Round Bars

Countries

Puerto Rico, Netherlands, Turkey, Bolivia, Oman, Kuwait, Tibet, Zimbabwe, United Kingdom, Vietnam, Costa Rica, Mexico, South Korea, India, Lebanon, Iran, Japan, Philippines, Indonesia, Denmark, Bangladesh, Nigeria, Taiwan, Nigeria, Iraq, United Arab Emirates, Thailand, Croatia, Malaysia, 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, Kazakhstan, Italy, France, Trinidad & Tobago, Czech Republic, Azerbaijan, Qatar, Singapore, Tunisia, 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.

Cities

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, Karachi, Secunderabad, Bangkok, Sydney, Aberdeen, Hyderabad, Doha, 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, Courbevoie, Algiers, Gimhae-si, Al Khobar, Dammam, Kolkata, Atyrau, Haryana, Ankara, Ernakulam, Ranchi, Calgary, Tehran, London, 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.

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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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