High Speed Steel M42 Bars

Starc Metals, located in Canberra, Australia, has made a name for itself as a top-notch manufacturer and supplier of high-quality industrial metals, with a special focus on High Speed Steel (HSS) M42 Bars. Known for their precision, durability, and exceptional quality, Starc Metals serves a variety of industries that need reliable cutting and machining tools. The company is dedicated to providing consistent performance and reliability through its state-of-the-art manufacturing processes. With a strong commitment to excellence, Starc Metals guarantees that every HSS M42 Bar adheres to strict international standards. Professionals in engineering, automotive, and manufacturing sectors trust Starc Metals as a reliable partner for high-performance steel solutions.

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M42 Alloy High Speed Steel Bars

High Speed Steel M42 Round Rods

M42 Alloy High Speed Steel Bright Bars

What is High Speed Steel M42 Bars ?

High Speed Steel M42 Bars are alloy steels that contain about 1.1% carbon, 8% cobalt, 4% molybdenum, 3.75% tungsten, and 1.25% vanadium, giving them remarkable hardness and wear resistance. These bars are known for their impressive red hardness, which allows them to maintain cutting efficiency even at high temperatures. With a tensile strength of over 1,400 MPa and hardness levels reaching up to 66 HRC, M42 Bars offer excellent toughness and resistance to deformation. The cobalt content boosts heat resistance, while the combination of alloying elements ensures top-notch performance in challenging machining and cutting tasks.

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High Speed Steel M42 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 M42 Bars

ASTM A600	C		Mn		P	S	Si		Cr		V		Mo		W		Co
M42	1.05	1.15	0.15	0.40	0.03	0.03	0.15	0.65	3.50	4.25	0.95	1.35	9.00	10.00	1.15	1.85	7.75	8.75
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		Mo		W		Co
1.3247/HS2-9-1-8	1.05	1.15	…	…	…	…	…	0.70	3.50	4.50	0.90	1.30	9.00	10.00	1.20	1.90	7.50	8.50
JIS G4403	C		Mn		P	S	Si		Cr		V		Mo		W		Co
SKH59	1.05	1.15	…	0.40	0.03	0.03	…	0.70	3.50	4.50	0.90	1.30	9.00	10.00	1.20	1.90	7.50	8.50

Mechanical Properties of High Speed Steel M42 Bars

Mechanical Properties	Metric	Imperial
Hardness, Rockwell C (oil quenched from 1204°C, 5 minutes)	64.3	64.3
Hardness, Rockwell C (oil quenched from 1177°C, 5 minutes)	65.5	65.5
Hardness, Rockwell C(oil quenched from 1163°C)	65.8	65.8
Izod impact unnotched (oil quenched at 1191°C; 510°C temper temperature)	13.6 J	10.0 ft- lb
Izod impact unnotched (oil quenched at 1191°C; 622°C temper temperature)	24.4 J	24.4 J
Machinability (1% carbon steel)	35.0 – 40.0%	35.0 – 40.0%
Poisson’s ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

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Equivalent Grades of High Speed Steel M42 Bars

Country	USA	German	Japan
Standard	ASTM A600	DIN EN ISO 4957	JIS G4403
Grades	M42	1.3247/HS2-9-1-8	SKH59

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High Speed Steel M42 Bars Types

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Frequently Asked Questions (FAQ)

Can High-speed Steel M42 Be Welded?

Yes, High-Speed Steel M42 can be welded, but it requires specialized techniques like preheating, post-weld heat treatment, and using appropriate filler materials to avoid cracking and maintain its properties.

Are High Speed Steel M42 Bars Recyclable?

Yes, High Speed Steel M42 bars are recyclable. They can be melted and reused in manufacturing, reducing waste and conserving resources, making them an environmentally friendly material choice.

How Should High-speed Steel M42 Bars Be Stored?

High-Speed Steel M42 bars should be stored in a dry, cool environment, protected from moisture and corrosion. Ensure they are placed on clean, stable surfaces to prevent damage and maintain quality.

High Speed Steel M42 Bars Uses

High Speed Steel M42 Bars are commonly used in the production of cutting tools like drills, taps, reamers, and end mills, where precision and heat resistance are essential. They excel in high-speed machining of hardened steels, cast irons, and superalloys, keeping their sharpness even under extreme operating temperatures. Industries such as aerospace, automotive, and heavy engineering depend on M42 Bars for efficient and long-lasting tooling solutions. Moreover, these bars are also utilized in the creation of metalworking tools, thread cutting tools, and precision components, making them vital in settings that demand durability, hardness, and superior performance.

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