W6Mo5Cr4V2Co5(M35) hot rolled steel round bars

W6Mo5Cr4V2Co5 is a tungsten-molybdenum series general cobalt-containing high-speed steel. Compared with W6Mo5Cr4V2, it has improved red hardness and high temperature hardness, improved wear resistance, and has better machinability, but the strength and impact toughness are lower, and it is easy to oxidize and decarburize. W6Mo5Cr4V2Co5 is general Used as gear cutters, milling tools, punches, cutter heads and other tools for cutting hard materials.

Product Name	High Speed Tool Steel
Material	Alloy Steel
Model Number	AISI ASTM M35 /DIN 1.3243 /JIS SKH55 /W6Mo5Cr4V2Co5
Delivery condition	Cold drawn, Quenchen and Tempered, Centerless Grinding
Processing Service	Cold drawn, Grinding, Peeling, Heat treat ment
Surface treatment	Black, Grinded, Peeled, Rough turned, Polished
Diameter	2-90 mm    (tolerance ISO h8,h9)
Application	cold die,blanking die,punches and variour molding tools
Delivery hardness	annealed condition ≤269HB
Packing	Water proof packing
Certification	ISO 9001, TUV, SGS, BV,CE, ABS

 

C	Si	Mn	P	S	Cr	Mo	V	W	Co
0,80 - 0,90	0.20 - 0,45	0.15 - 0,40	<=0,030	<=0,030	3,75 - 4,50	4,50 - 5,50	1,75 - 2,25	5,50 - 6,50	4,50 - 5,50

 

Mechanical properties
Hardness: Delivery hardness: (other processing methods) ≤285HB; (annealing) ≤269HB. Sample heat treatment system and quenching and tempering hardness: ≥64HRC
Microstructure
Heat treatment specification: quenching, preheating at 730～840℃, heating at 1190～1210℃ (salt bath furnace) or 1200～1220℃ (box furnace), oil cooling, tempering at 540～560℃ twice, 2h each time.
delivery status
Hot-rolled, forged, and cold-drawn steel rods are delivered in annealed state, and hot-rolled and forged steel rods are delivered after processing by annealing + other processing methods (skinning, light drawing, polishing or polishing, etc.).

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