Steel SKH51

High-speed Tool Steel
Steel JIS SKH51

Grade : SKH51
Kategori: High-speed tool steel
Standard: JIS G4403
Equivalent:
DIN 1.3343, ASTM M2, BOHLER S600, HS6-5-2, Z85WDCV06-05-04-02, BM2, HS6-5-2, W6Mo5Cr4V2, 2722, SW7M, 19830, R6M5, HS6-5-2,

Characteristic

Steel for tools for machining. There are two types of molybdenum and tungsten series.
The process becomes more highly abrasion-resistant steels can be difficult.

Availability
Roundbar, Flat
Diameter: 12mm – 90
Thickness: 5mm – 90mm

Chemical Composition

C Si Mn Cr Mo V W P S
0.80-0.88 0.45 Max 0.40 Max 3.80-4.50 4.70-5.20 1.70-2.10 5.90-6.70 0.03 Max 0.03 Max

Mechanical Properties

Tempering: 540 – 570 °C
Hardness after tempering: 64 – 66 HRC
High-speed steel, high strength at elevated temperatures, good toughness, high compressive strength, good wear resistance. Similar to AISI M2.

Product Hardening and annealing hardness Features Application
SKH51 60~65HRC General-purpose matrix Drills, end mills, press dies
high- speed steel
SKH55 60~66HRC Heat-resistant, wear-resistant End mills, hobs, press dies
high-speed steel
SKH56 60~66HRC Heat-resistant, wear-resistant End mills, hobs, press dies
high-speed steel
SKH57 62~67HRC Heat-resistant, wear-resistant Bites, end mills, hobs
high-speed steel
SKH59 62~67HRC Heat-resistant, wear-resistant Bites, end mills, hobs
high-speed steel

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