HSS Lathe Tool Bits
Products Description
M35 cobalt-containing high-speed steel, through appropriate heat treatment, can obtain high hardness (HRC67 ~ 70), high red hardness (625 ° C 4 hours, HRC 63 ~ 65) and high wear resistance, toughness and bending strength are not lower than ordinary High-speed steel can overcome early damagesuch as mold edge collapse and cracking.
M35 steel is an internationally popular high-wear steel with high wear resistance,high-pressure resistance and sintering resistance.
| M35 Equivalent Grade | |||||||||||
| Exeution standard | Grade | GB | AISI | JIS | DIN | ||||||
| GB/T9943-2008 | M35 | W6Mo5Cr4V2Co5 | M35 | SKH5 | 1.3243 | ||||||
| Chemical Compisition % | |||||||||
| C | W | Mo | Cr | V | Co | Mn | Si | S | P |
| 0.88-0.96 | 5.80-6.70 | 4.70-5.20 | 3.80-4.50 | 1.70-2.00 | 4.50-5.50 | 0.2-0.4 | 0.25-0.45 | ≤0.03 | ≤0.03 |
| High Speed Alloy Tool Steel Bar (M35/W6MoCr4V2Co5/1.3243/SKH35) |
| Size:Flat Bars(mm): |
| Size:Flat Bars(mm): |
| Thickness:20-400 Width:200-800 Length:1000~6000 Round Bar (mm):Φ20~400 |
| Mechanical property: |
| Hardness:≥64HRC |
| Heat treatment |
| Preheat:1190~1210ºC or 1200~1220ºC heating,oil cooling:540~560ºC |
| Tempering:Twice,2hours each time. |
| Delivery status: Hot rolled,forged,annealed, |
| Surface conditions: Rough turning, peeling, polishing |
| Delivery hardness: ≤285HB;Annealed ≤269HB quenching:730~840ºC |
| Application: |
| (1)Has good machinability, but lower strength and impact toughness; |
| (2)easy oxidation decarburization, commonly used for gear cutting tools, milling tools and tools such as punch, |
| (3)cutter for cutting hard material; |
Product Picture
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Steel Making
Ingot Production
Forged Bars
Machinary
Elements in HSS properties:
Standard grade for High Speed Steels; owing to its balanced composition has good toughness and cutting performance, hence many applications.
- Carbon : forms carbides, increases wear resistance, is responsible for the basic matrix hardness. High Speed Steel with high molybdenum and carbon. It has high wear resistance, high red hardness and good toughness. With its low vanadium content, this grade has very good grind ability.
- Tungsten and molybdenum: improve red hardness, retention of hardness and high temperature strength of the matrix, form special carbides of great hardness.
- Vanadium: forms special carbides of supreme hardness, increases high temperature wear resistance, retention of hardness and high temperature strength of the matrix.
- Chromium: promotes depth hardening, produces readily soluble carbides.
- Cobalt: HSS containing cobalt content is a high performance steel with good cutting capability & ensures high red hardness and tempering retention. It is particularly suitable in thermal stress situations and for intermittent cutting
M35 HSS Cobalt Tool Steel Bar Applications:
Heavy duty milling cutters, broaches, reamers, cutting tools, shaper cutters & rotary shave cutters for machining hard materials, socket head & hole punching dies for producing nuts & tap drills. Die blocks, broaching tools, cold extrusion rams, tools subject to extensive mechanical stresses. Heavy roughing work, machining high tensile steels, difficult to machine cast steel, grey cast iron, chill castings NF metals & non-metal material. Turning, planning & shaping tool, rough milling cutters. End mills, hobs, shaper cutters, cold forming tools, stamping & punching tools, cutting tools, working rolls for cluster rolling stand.
Packing & Delivery
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