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SKH59 1.3247 M42 High Speed Steel Plate

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  • M42

  • Qilu

Product Description

SKH59 1.3247 M42 High Speed Steel Plate


1: AISI M42 Steel Introduction

   M42 Tool Steel is is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. (HSSSteel M42) 8% Cobalt tool bits are designed for machining work hardening alloys and other tough materials. They have increased water resistance and tool life. This improves performance and retention of the cutting edge. M42 steel composition makes for a good combination of toughness and hardness.

                        8 10

M42 steel Stock in warehouse


2: A681 Quality Standard

ASTM-A681-2008 ENG Standard-Specification-for-Tool-Steel-Alloy.pdf


3: AISI M42 Steel Equivalent

Country USA German Japan
Standard ASTM A681 DIN EN ISO 4957 JIS G4403
Grade M42 1.3247/HS2-9-1-8 SKH59


4: AISI M42 Steel Chemical Composition


Grade C Si Mn P S Cr Mo V W Co
M42 1.05-1.15 0.2-0.65 0.15-0.4 0.03 0.03 3.5-4.25 9.0-10.0 0.95-1.35 1.15-1.85 7.75-8.75
1.3247 1.05-1.15 0.7 0.15-0.4 0.03 0.03 3.5-4.5 9.0-10.0 0.9-1.3 1.2-1.9 7.5-8.5
SKH59 1.05-1.15 0.7 0.4 0.03 0.03 3.5-4.5 9.0-10.0 0.9-1.3 1.2-1.9 7.5-8.5



5: AISI M42 Steel Mechanical Properties

   The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.


6: AISI M42 Steel Overviews

Size Round Dia 6-1200mm
Plate/Flat/Block Thickness
6mm-500mm
Width
20mm-1000mm
Heat treatment Normalized ; Annealed ; Quenched ; Tempered
Surface condition Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition Forged; Hot rolled; Cold drawn
Test Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms T/T;L/C;/Money gram/ Paypal
Trade terms FOB; CIF; C&F; etc..
Delivery time 30-45 days


7: AISI M42 Steel Application

  M42 are used for cutting tools such as, twist drills, broaches, taps, milling, cutters, saws, reamers etc.


8: AISI M42 Steel Heat Treatment

  Annealing
 AISI M42 high speed steel is heated at 871°C (1599°F) and then cooled slowly in a furnace.
 Stress Relieving
 To relieve stresses created by extensive machining or tooling with complex geometries. Heat in a neutral atmosphere for 1 to 2 hours after reaching a temperature of 1110 to 1200°F (600 to 650°C), followed by slow cooling in the furnace.
 Hardening
 AISI M42 high speed steel is preheated to 871°C (1599°F), soaked and finally heated to 1204°C (2199°F).
 Tempering
 Tempering M42 tool steel at 560°C / 1040°F or higher 3 times for at least 1 hour at full temperature is recommended.


9: Delivery Condition

For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.


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