High Speed Tool Steel AISI M42 Hot Rolled Black Surface Round Steel

• Standard: DIN, JIS, AISI, ASTM, GB, BS
• Technics: Forged
• Application: Tool Steel Bar
• Surface: Black
• Alloy: Alloy
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Free Cutting Steel, Mold Steel
• Model NO.: 1.3247/M42/SKH59/W2Mo9Cr4VCo8
• Delivery condition: hot rolled black surface
• Quality Assurance: 100% UT passed
• Delivery Time: 7days
• Condition: stock
• Transport Package: standard/customized
• Specification: standard/customized
• Trademark: customized
• Origin: China
• HS Code: 7228300000
• Production Capacity: 1000t/Month

Product Description

High Speed Tool Steel AISI M42 Hot Rolled Black Surface Round Steel 

Product Introduction
M42 super high speed steel is a premium cobalt high speed steel with a chemical composition designed for high hardness and superior hot hardness. These properties make the steel an excellent choice for machining high-strength and pre-hardened steels, high-hardness alloys, and the difficult-to-machine, nonferrous super alloys used in the aerospace, oil, and power generation industries.
M42 exhibits excellent wear resistance by virtue of high heat-treated hardness (68 to 70 HRC), and the high cobalt content imparts the hot hardness. As such, the cutting
edges on tools made from M42 super high speed steel stay sharp and hard in heavy-duty and high-production cutting applications.

Chemical Composition

C	Si	Cr	W	Mo	V	Co
1.08	0.45	3.85	1.50	9.50	1.20	8.00

PHYSICAL PROPERTIES

• Density: 0.282 lb/in3 (7806 kg/m3)
• Specific Gravity: 7.81
• Modulus of Elasticity: 30 x 106 psi (207 GPa)
• Machinability: 35-40% of a 1% carbon steel

Features
Wear and abrasive resistance
•   Can maintain cutting edge until 600c
•   Easy to harden and can do vacuum hardening
•   Provide high hardness after hardening (64-66 HRC)
•   Resistance to annealing at high temperature
•   High tensile as compare to AISID2
•   High performance in cutting application. Can be applied to cut any kind of materials.
•   High resistance to carbon losing at its surface
•   Welding abiity
•   Ablity to do hard surface by nitriding
•   Ability to coating surface with PVD method.

Applications
 Twist drills, taps, milling cutters, reamers, broaches, saws, knives, and thread rolling dies.


Quality Inspection

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