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DIN1.3207 high speed tool steel, high speed steels for metal-cutting tools, Dia: 2-400mm
Application
High-carbon, high-speed steel grade based on Mo, with high resistance to wear, red hardness and toughness. This steel grade displays good grind ability as a result of its low V content. Tools severe mechanical wear, e.g. in cases of small cross-section cuts and high cutting speeds. Particularly suitable for die-sinking cutters and one-lip cutters, and for tool bits in automatic lathes. Also suitable for non-cutting applications, e.g. cold extrusion rams, and for tools for machining aircraft materials, such as titanium alloys, etc.
Steel Grade:
DIN- 1.3207%
| C | Si | Mn | P | S | Cr | Mo | V | W | Co |
| 1,20 - 1,35 | <=0,45 | <=0,40 | <=0,030 | <=0,030 | 3,80 - 4,50 | 3,20 - 3,90 | 3,00 - 3,50 | 9,00 - 10,00 | 9,50 - 10,50 |
Similar grade: AISI-M42
Delivery Condition:
| GB/T1299-2000 | DIN | AISI | |
| Annealed (HB) | <=269 | 240~300 |
Size available
Round and Square Bar: 2mm -400mm
Flat: thickness:0.6-250mm, width:30-810mm
Length Random Length, Fixed Length, etc.
Anneal temperature: 860-880
Relief annealing temperature: 720-760
Hardening temperature: 1160-1190
Hardening medium: salt bath under 600,aslo use oil cooling or air cooling
Normal temper temperature: 540-560
RC Rockwell Hardness after hardening and temper: 66-68
Characteristic:High performance tungsten-molybdenum high speed steel, Excellent performance of hardness, red hardness, thermoplasticity, machinability. Only weak in toughness
High Speed Steel got hardness method: 1. Salt bath hardening or vacuum hardening 2. the temperature 1180-1200°C, if need high hardness add 10°C 3. in the temperature 560°C, tempering more than 3 times. The most important: control hardening temperature and time.
Marking: Heat No. will be cold stamped and Steel grade, diameter mm, length mm, and the manufacturer LOGO and weight kg is painted.
