High Speed Steel M2 Bars

Kanish Metals is a prominent Dubai, UAE-based manufacturer and supplier of High Speed Steel M2 Bars, which is a leading provider of high-performance tool steel products for precision cutting and machining purposes. M2 is an extremely popular grade of high speed steel, attributed to its superior combination of red hardness, toughness, and wear resistance. Kanish Metals supplies M2 bars in different sizes and specifications, accurately produced to deliver international quality standards. With a sharp emphasis on customization, dependability, and prompt delivery, Kanish Metals caters to automotive, aerospace, toolmaking, and general engineering sectors in the UAE as well as international markets.

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M2 Alloy High Speed Steel Bar

High Speed Steel M2 Round Rod

HSS M2 Bars

What is High Speed Steel M2 Bars ?

High Speed Steel M2 commonly contains about 0.9% carbon, 6.3% tungsten, 5% molybdenum, 4% chromium, and 2% vanadium. The composition of this alloy provides M2 with a great combination of hardness (up to 62–65 HRC after heat treatment), edge retention, and abrasion and deformation resistance at high temperatures. M2 is also well-machined and has the capacity to maintain its cutting characteristics at temperatures between 500–600°C, making it perfect for tools subjected to heavy working stress in high-speed machining.

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High Speed Steel M2 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 M2 Bars

ASTM A600	C		Mn		P	S	Si		Cr		V		Mo		W
M2 regular C	0.78	0.88	0.15	0.40	0.03	0.03	0.20	0.45	3.75	4.50	1.75	2.20	4.50	5.50	5.50	6.75
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		Mo		W
1.3343	0.86	0.94	…	…	…	…	…	0.45	3.80	4.50	1.70	2.10	4.70	5.20	5.90	6.70
JIS G4403	C		Mn		P	S	Si		Cr		V		Mo		W
SKH51	0.80	0.88	…	0.40	0.03	0.03	…	0.45	3.80	4.50	1.70	2.10	4.70	5.20	5.90	6.70

Mechanical Properties of High Speed Steel M2 Bars

Mechanical properties	Metric	Imperial
Hardness, Rockwell C (tempered at 1150°F, quenched at 2200°F)	62	62
Hardness, Rockwell C (as hardened, quenched at 2200°F)	65	65
Compressive yield strength (when tempered at 300°F)	3250 MPa	471000 psi
Izod impact unnotched (when tempered at 300°F)	67 J	49.4 ft-lb
Abrasion (loss in mm³, as-hardened; ASTM G65)	25.8	25.8
Abrasion (loss in mm³, tempered at 1275°F; ASTM G65)	77.7	77.7
Poisson’s ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30458 ksi

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Equivalent Grades of High Speed Steel M2 Bars

Country	USA	German	Japan
Standard	ASTM A600	DIN EN ISO 4957	JIS G4403
Grades	M2	1.3343	SKH51

Thermal Properties of High Speed Steel M2 Bars

Thermal properties	Metric	Imperial
CTE, linear (@20.0 – 100°C/ 68.0 – 212°F)	10 μm/m°C	5.56 μin/in°F
CTE, linear (@20.0 – 500°C/68.0 – 932°F)	12.2 μm/m°C	6.78 μin/in°F
CTE, linear (@20.0 – 850°C/68.0 – 1560°F)	12.6 μm/m°C	7 μin/in°F

Physical Properties Of High Speed Steel M2 Bars

DENSITY (G/CM 3)	8.08
DENSITY (LB/IN 3)	0.292
MELTING POINT (°C)	1425
MELTING POINT (°F)	2600

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High Speed Steel M2 Bars Types

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Frequently Asked Questions (FAQ)

Can High-speed Steel M2 Be Welded?

Yes, High-Speed Steel M2 can be welded, but it requires careful heat control. Preheating, welding with proper filler material, and post-weld heat treatment are necessary to avoid cracking and preserve hardness.

Are High Speed Steel M2 Bars Suitable For High-Temperature Applications?

High-Speed Steel M2 bars are not ideal for high-temperature applications, as they can lose hardness and wear resistance above 540°C, limiting their performance in extreme heat conditions.

How Should High-speed Steel M2 Bars Be Stored?

High-Speed Steel M2 bars should be stored in a dry, cool environment to prevent corrosion. They should be kept off the ground, ideally on wooden or metal racks, and away from moisture or chemicals.

High Speed Steel M2 Bars Uses

High Speed Steel M2 Bars have extensive applications in the production of high-precision cutting tools and wear-resistant parts. Typical uses are for twist drills, end mills, taps, broaches, saw blades, reamers, punches, and lathe tools. M2 is ideal for both high-speed and conventional turning operations and can cut a vast array of materials such as carbon steel, alloy steel, and cast iron. Its strength and longevity make it the perfect choice for tools that experience repeated shock and rubbing, providing extended tool life and consistent reliability in high-volume operations.

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