High Speed Steel M35 Bars

Kanish Metals is a premier producer and supplier of High Speed Steel M35 Bars, headquartered in Dubai, UAE, offering premium tool steel solutions for high-performance cutting and machining applications. M35 is a cobalt-containing high speed steel with superior red hardness, wear resistance, and toughness. Kanish Metals offers precision-engineered M35 bars according to international standards, suitable for high-demand industrial tooling applications. With great emphasis placed on quality consistency, tailored sizes, and timely delivery, Kanish Metals supplies industries like automobile, aviation, die and mold, and general engineering within the UAE and international markets.

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M35 Alloy High Speed Steel Bar

High Speed Steel M35 Round Rod

HSS M35 Bars

Table of Contents

What is High Speed Steel M35 Bars ?

High Speed Steel M35 contains about 0.9% carbon, 5% cobalt, 6% tungsten, 5% molybdenum, 4% chromium, and traces of vanadium. The presence of cobalt considerably enhances hot hardness, so M35 can sustain cutting edges over 600°C temperatures. It generally achieves hardness values ranging from 64–66 HRC upon heat treatment and provides excellent abrasion resistance as well as compressive strength. These characteristics make M35 highly sought after for cutting tools that need to withstand high-speed cutting and thermal stress without losing strength or edge retention.

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High Speed Steel M35 Bars Specifications

  • 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

Chemical Compositions of High Speed Steel M35 Bars

ASTM A600 C Mn P S Si Cr V Mo W Co
M35 0.82 0.95 0.15 0.40 0.03 0.03 0.20 0.45 3.80 4.50 1.75 2.15 4.75 5.25 5.50 6.50 4.60 5.00
DIN ISO 4957 C Mn P S Si Cr V Mo W Co
1.3243/HS6-5-2-5 0.87 0.95 0.40 0.03 0.03 0.45 3.80 4.50 1.70 2.10 4.70 5.20 5.90 6.70 4.50 5.00
JIS G4403 C Mn P S Si Cr V Mo W Co
SKH55 0.87 0.95 0.40 0.03 0.03 0.45 3.80 4.50 1.70 2.10 4.70 5.20 5.90 6.70 4.50 5.00

Mechanical Properties of High Speed Steel M35 Bars

Temperature °C / °F
20 / 70 400 / 750 600 / 1110
Density Kg/m³ lbs/in³ 8150 .294 8050 .290 7990 .228
Modulus of Elasticity kN/mm³² psi 230 34 · 10 6 205 31 · 10 6 184 27 · 10 6
Coefficient of Thermanl expansion from 20°C / 70°F per °C per °F 11.6 · 10-6 6.4 · 10-6 11.9 · 10-6 6.6 · 10-6
Thermal Conductivity W/m °C Btu/sq. ft. h °F/in. 24 166 28 194 27 187
Specific Heat J/kg °C Btu/lb °F 420 0.10 510 0.12 600 0.14

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Equivalent Grades of High Speed Steel M35 Bars

Country USA German Japan
Standard ASTM A600 DIN EN ISO 4957 JIS G4403
Grades M35 1.3243/HS6-5-2-5 SKH55

Thermal Properties of High Speed Steel M35 Bars

Thermal properties Metric Imperial
CTE, linear (@21 – 399°C / 69.8 – 750°F) 11.4 μm/m°C 6.33 μin/in°F
CTE, linear (@21 – 593°C /69.8 – 1100°F) 11.5 μm/m°C 6.39 μin/in°F

M35 High Speed Steel Bar Standard Sizes

Type SIZES (mm) SIZES (Inches) ISO Tolerance
Cold Drawn and Ground 10.00 – 75.00 5/6″ – 2.50″ h8-h9-h10-h11
Peeled and Polished 40.00 – 150.00 1.50″ – 6.00″ h11, h11-DIN 1013
Peeled and Ground 20.00 – 50.00 3/4″ – 2.00″ h9-h10-h11
Cold Drawn and Polish 3.00 – 75.00 1/8″ – 3.00″ h8-h9-h10-h11

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High Speed Steel M35 Bars Types

M35 High Speed Steel Square Bars
High Speed Steel M35 Threaded Bar
High Speed Steel M35 Bar
High Speed Steel 1.3243 Rods
High Speed Steel T11335 Bright Round Bar
High Speed Steel M35 Hot Rolled Bars

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Frequently Asked Questions (FAQ)

Yes, High-Speed Steel M35 can be welded, but it requires careful control of heat and preheating. Post-weld heat treatment is often necessary to restore its hardness and performance.

Yes, High-Speed Steel M35 bars can be customized in terms of dimensions, shape, and surface finish. Machining and heat treatment processes can also be tailored to meet specific performance requirements.

High-Speed Steel M35 bars should be stored in a dry, cool environment, away from moisture and extreme temperatures. They should be kept on racks to prevent contact with corrosive materials.

High Speed Steel M35 Bars Uses

High Speed Steel M35 Bars find extensive usage in the manufacture of cutting tools that are required to work under severe heat and pressure. Typical uses are twist drills, end mills, taps, broaches, saw blades, reamers, and other sharp cutting tools. M35 is particularly ideal for cutting hard materials such as stainless steel and high-alloy steels. It also finds application in die-making, cold forming, and other high-load operations. The high red hardness, toughness, and wear resistance of M35 bars in combination ensure that these bars are a dependable tool material requiring both performance and durability at hard working conditions.

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