High Speed Steel M35 Bars

Hemi Metals is a well-respected manufacturer and supplier located in Hamilton, New Zealand, specializing in top-notch High Speed Steel M35 Bars designed for tough industrial applications. With a strong commitment to quality, precision, and durability, the company guarantees that each bar meets international performance standards. Thanks to their state-of-the-art facilities and a skilled team, Hemi Metals produces M35 bars that are renowned for their exceptional heat resistance, wear strength, and cutting efficiency. They pride themselves on being a reliable partner for the machining, engineering, automotive, and fabrication industries, both in New Zealand and around the globe, by providing dependable supply, technical support, and timely delivery.

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M35 Alloy High Speed Steel Bar

High Speed Steel M35 Round Rod

HSS M35 Bars

What is High Speed Steel M35 Bars ?

High Speed Steel M35 Bars are made up of approximately 0.90% carbon, 4% chromium, 5% molybdenum, 6% tungsten, and 5% cobalt, with vanadium included to enhance hardness. This unique blend results in remarkable red-hardness, excellent wear resistance, and superior hot hardness. Mechanically, M35 bars offer high tensile strength, impressive edge retention, and reliable toughness. Their ability to resist heat softening means tools can maintain sharpness and performance even during high-speed or heavy-load operations, ensuring they stay dimensionally stable and have a long service life.

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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

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Frequently Asked Questions (FAQ)

Can High-speed Steel M35 Be Welded

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.

Are High-Speed Steel M35 Bars Customizable?

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.

How Should High-speed Steel M35 Bars Be Stored?

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

These High Speed Steel M35 Bars are widely utilized in industries that demand exceptional cutting performance and durability at high temperatures. They’re perfect for crafting drills, taps, reamers, broaches, milling cutters, and saw blades. Their outstanding red-hardness makes them particularly effective for machining challenging materials like stainless steel, titanium alloys, and hardened steels. M35 bars also find applications in aerospace machining, automotive components, precision tooling, and metal-forming dies. Their capacity to maintain hardness and efficiency under high-speed conditions guarantees reliable tool performance in advanced manufacturing settings.

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