M2 High Speed Steel

Features of M2 High Speed Steel

• 1  The M2 high speed steel is known for its balanced combination of abrasion resistance, toughness and good red hardness. M2 is a tungsten-molybdenum high speed tool steel, M2 tool steel is used in a variety of applications and worldwide. M2 tool steel is the most popular high speed steel because of its superior qualities. As a result of its low carbon content, M2 tool steel high speed tool steel has an outstanding combination of toughness properties and abrasion resistance when correctly hardened and tempered.
   
  M2 tool steel equivalent with JIS SKH51, SKH9, DIN WN-r 1.3343, GB W6Mo5Cr4V2
   
  M2 high speed steel Related Specifications ASTM A600-1999 M2 HSS steel data pdf down
   
  Related Specifications and Equivalent of ASTM M2 high speed tool steel with others HHS Material Standard
   
  Country    USA             Germany          Japan         China
  Standard   ASTM A600-1999 DIN 17350-1980 JIS G4403-2000 GB/T 9943-2008
  Grades   M2             1.3343         SKH51         W6Mo5Cr4V2
   
   
  Chemical Composition contrast of ASTM M2 high speed tool steel with other Equivalent HSS steel Material
   
  Pls refer to our catalogue showing in website.
   
   
  M2 Form of Supply
   
  M2 high speed steel, we can supply the steel with round, flat, plate and block etc., providing a high-quality precision finished condition with tight tolerances.
   
  Heat treatment related specifications of ASTM M2 high speed steel
   
  Annealing of HSS M2 high speed tool steel material  
  ASTM M2 high speed tool steel annealing is recommended before Re-hardening. Heating the M2 high speed tool steel to 850°C, the rate of less than 220°C per hour. Keep at temperature for 1 hour per inch(25.4mm) of thickness (with 2 hours being Min). Cool slowly in the heat treatment furnace. The annealed hardness should be 248 HB(Brinell) or lower.
   
  Stress Relieving of M2 high speed tool steel material HSS
  For get good Machinability, the Stress Relieving is very important. When M2 high speed tool steel are heavily machined or ground for tools products.it is recommended to stress relieve after machined and prior to hardening to Min the possibility of distortion. For stress relieve heating the component to 680-720°C and soak well about approximately 2 hours, then put in air cool. The tools products can be finish machined before heat treatment.
   
  Hardening of M2 tool steel HSS material
  First Pre-heating M2 steel to 460-500°C, then heating 860-900°C. Third continue heating to 1200-1250°C for hardening temperature and ensure the component is heated through. Care must be taken not to allow the component to remain too long at the hardening temperature. The last Quench in warm oil or brine. If quenching in brine allows the tools to equalize, then complete the quench in air. If quenching in oil removes the component from the oil at about 510°C, then air cool. The vacuum hardening also is suitable for M2 high speed steel -M2 HSS material.
   
  Tempering of M2 high speed tool steel material (HSS steel)
  Tempering for M2 steel. Double tempering is mandatory and for tools cut by wire EDM triple tempering is strongly recommended if can. After quenching, the temper the component immediately. Uniformly and thoroughly heating to the selected tempering temperature and hold for at least 2 hours (one hour per inch(25.4mm) of total thickness).
   
  Temperature (°C) 300 400 500 550  600 650
  Hardness (HRC) 62  63  64  65  64  61
   
  Applications of M2 high speed tool steel HSS
   
  M2 High Speed Steel is used high production machine work and is used for various cutting tool, knife and punch and die applications. Some of these applications include twist drills, taps, milling cutters, reamers, broaches, saws, and knives.
  HIGH SPEED STEEL高速工具钢
  
  

  编号 NO:	近似钢号					用途	Application
  	中国GB	美国AISI	德国DIN	日本JIS	外企 Foreign Enterprise
  1	W6Mo5Cr4V2	M2	S6-5-2  1.3343	SKH51		广泛用于给类刀具及耐磨冷作模具	Widely used for vaired cutters and cold work mold with wearproof
  2	*W6Mo5Cr4V2Co2	M2 Modify				自创刀具专用钢、耐磨、抗热裂（专利产品）	Specially for planer knife with wear-resisting
  3	*W6MoCr4V2 改	M2 Modify				用于模具，韧性用途，用于抗崩角且较耐磨的冷性模具和刀具	Used for cold work steel and cutters which are wearresistant and can resist tipping and stand
  4	W6MoCr4V4	M4		SKH54		用于高耐磨复杂性刀具和冷作模具	Used for hi-wear-resisting sutters and cold mold
  5	*W5Mo2Cr4V2Co					自创含钴中低速销刀模具钢（专利产品）	Specially for mid-low speed cutters
  6	W6Mo5Cr4V2Co5	M35	1.3243	SKH35	DAIDOMH55	难分削和高速切削，能用刀具，偏重耐磨性	Specially for hard and hi-speed cutting
  7	W2Mo9Cr4VCo8	M42	1.3247	SKH59	HITACHIYXM42	难分削和高速切削，能用刀具，偏重韧性	Specially for hard and hi-speed cutting
  8	*W2Mo8Cr4V2Co3	M42 Modify				用于刀具，耐磨用途，难切削和高速切削，较耐磨兼有韧性	Used for cutters,hard and hi-speed cutting,wear-resistant and toughness
  9	W18Cr4V	T1	1.3355	SKH2		通用切削工具用钢	For cutters in common use
  10	W9Mo3Cr4V					性能与用途均与M2相当的中国钢号	Same as M2

   

  编号 NO:	高速工具钢化学成份(% ) Chemical composition										退火状态 硬度≤ Annealed  Hardness	热处理温度(℃) Heal treatment temp		回火硬度 HRC Secondary hardness
  	C	Si	Mn	P≤	S≤	Cr	W	Mo	V	Co		淬火  Hardening	回火 Tempering
  1	0.85	0.38	0.35	0.030	0.030	4.10	6.00	4.80	1.85		255	1210-1230	550	63-35
  2	0.90	0.38	0.35	0.030	0.030	4.10	6.00	4.80	1.80	1.40	255	1200-1220	550	63-67
  3	0.80	0.38	0.42	0.030	0.030	5.30	5.00	5.00	1.70	1.00	255	1200-1220	550	60-66
  4	1.30	0.38	0.35	0.030	0.030	4.10	5.50	4.50	3.85		255	1200-1220	550	63-66
  5	0.88	0.80	0.35	0.030	0.030	4.10	5.20	1.80	1.55	1.20	255	1200-1220	550	63-66
  6	0.93	0.38	0.35	0.030	0.030	4.10	6.30	4.80	1.85	5.00	269	1200-1220	550	64-67
  7	1.10	0.55	0.35	0.030	0.030	4.10	1.50	9.50	1.05	8.00	269	1180-1210	550	65-68
  8	1.00	0.40	0.40	0.030	0.030	4.00	2.40	7.80	2.00	3.00	269	1180-1210	550	64-67
  9	0.78	0.35	0.35	0.030	0.030	4.05	18.00	—	1.10		255	1270-1285	560	63-65
  10	0.83	0.35	0.35	0.030	0.030	4.05	8.70	2.90	1.40		255	1200-1240	550	63-65