High Speed Steel M2 Bars

Al Summan Metals, a leading manufacturer and supplier based in Dubai, UAE, is renowned for producing premium **High Speed Steel M2 Bars** that meet global standards for precision and durability. These bars are engineered to deliver outstanding hardness, wear resistance, and heat resistance, making them ideal for demanding cutting and machining applications. Al Summan Metals employs advanced manufacturing methods and stringent quality control processes to ensure consistent performance and reliability. Serving industries such as automotive, aerospace, tooling, and engineering, the company provides M2 steel solutions that enhance productivity, extend tool life, and satisfy the rigorous requirements of the modern manufacturing environment.

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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 Bars** consist mainly of molybdenum (roughly 5%), tungsten (6%), chromium (4%), vanadium (2%), carbon (0.85–0.9%), together with small quantities of manganese and silicon. This particular alloy makeup produces outstanding hardness, high red hardness, superb wear resistance, and solid toughness. M2 steel holds its cutting edge even under high temperatures and demonstrates notable compressive strength and dimensional stability. Thanks to these mechanical qualities, M2 bars are especially suitable for precision machining, heavy-duty cutting tools, and uses that demand dependable performance under considerable stress.

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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 based on the 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 and more

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, M2 High-Speed Steel is weldable, though it demands careful management of heat. To prevent cracking and maintain hardness, you must preheat the metal, use the correct filler material during welding, and apply post-weld heat treatment.

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

High-Speed Steel M2 bars are unsuitable for high-temperature applications, since they can lose hardness and wear resistance beyond 540°C, restricting their performance in extreme heat conditions.

How Should High-speed Steel M2 Bars Be Stored?

Steel M2 High-Speed bars ought to be kept in a cool, dry space to avoid corrosion. Keep them elevated off the floor, preferably on racks made of wood or metal, and clear of chemicals or moisture.

High Speed Steel M2 Bars Uses

High Speed Steel M2 Bars are widely used across industries that require high-performance cutting and forming tools. They are frequently used in manufacturing drills, taps, milling cutters, broaches, saw blades, and reamers. Within sectors such as automotive, aerospace, and metalworking, M2 bars provide reliable performance in high-speed and high-temperature conditions. Their exceptional wear resistance, heat resistance, and toughness make them well-suited for precision machining, tool-making, and industrial uses where durability and long service life are critical. M2 steel bars remain the preferred option for professional tool manufacturers worldwide.

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