High Speed Steel M35 Bars

Dhruv Metals, a well-respected manufacturer and supplier located in Hyderabad, India, specializes in top-notch High Speed Steel (HSS) M35 Bars. These bars are crafted to provide outstanding hardness, wear resistance, and durability. Using cutting-edge techniques and rigorous quality controls, Dhruv Metals ensures that their products meet global performance standards, making them perfect for tough cutting and machining tasks. Renowned for their ability to maintain hardness even at high temperatures, HSS M35 Bars from Dhruv Metals are a go-to choice in the automotive, tooling, and engineering industries. With a commitment to precision, reliability, and timely delivery, they cater to both domestic and international markets with their premium HSS M35 offerings.

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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 ?

The composition of High Speed Steel M35 Bars includes Carbon (C ~0.9%), Tungsten (W ~6%), Molybdenum (Mo ~5%), Chromium (Cr ~4%), Vanadium (V ~2%), and Cobalt (Co ~5%), with Iron (Fe) as the base element. These bars boast a hardness range of 62–66 HRC, excellent red hardness, and impressive wear resistance. Their tensile strength and ability to maintain cutting performance at elevated temperatures make them perfect for heavy-duty machining and high-speed cutting tools.

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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

High Speed Steel M35 Bars find extensive use in industries that demand precision cutting and high-performance tooling. In manufacturing, they are essential for producing drills, taps, reamers, end mills, and saw blades, thanks to their ability to retain hardness during extended use. The automotive and aerospace sectors rely on them for cutting and shaping components that require exceptional accuracy and durability. Additionally, they are utilized in die-making, gear cutting, and various machining operations where heat and wear resistance are crucial. The strength and stability of HSS M35 Bars make them vital for advanced tooling applications.

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