Guangzhou Changfeng Steel Co., LTD
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1.3243/M35 Black Surface High Speed Special Tool Steel
1.3243/M35 Black Surface High Speed Special Tool Steel With length 3000-6000mm
Chemical composition (%)
| C | Si | Mn | S | Cr | W | Mo | V | Co |
| 0.93 | 0.38 | 0.35 | ≤0.03 | 4.10 | 6.30 | 4.80 | 1.85 | 4.90 |
Features:
1) For tungsten molybdenum containing cobalt high speed steel, improve the red hardness and high temperature hardness;
2) Improved wear resistance, good machinability, but lower strength and impact toughness, easy oxidation decarburization;
3) Commonly used for gear cutting tools, milling tools and tools such as punch, cutter for cutting hard material;
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.
Heat treatment:
| Preheat | 1190~1210ºC or 200~1220ºC | Delivery hardness | ≤285HB | quenching | 730~840ºC |
| Oil cooling | 540~560ºC | Annealed | ≤269HB | Ready Stock | 6-50mm |
| Tempering | Twice, 2 hours each time. | ||||
| Delivery status | Hot rolled, forged, annealed, | ||||
| Surface conditions | Rough turning, peeling, polishing,machined, grinded,black surface | ||||
| Deliver time | 7-20 days.For customized products, 30-50 days. | ||||
Our Service For You
Pre-sale Service
1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
4. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale choose
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
Warehous
Processing
Strict Quality Control