M35 High Speed Tool Steel is a tough, cobalt-boosted steel that keeps its edge, cuts well, and doesn't wear out easily, even when things get rough. It's like the souped-up version of regular molybdenum-based HSS, made to fit rules like ASTM A600 and DIN EN ISO 4957. People use it a lot for tools that need to stay sharp and strong when they get hot, mostly for cutting tough stuff.
Metallurgy-wise, M35 is basically M2 steel but with about 5% cobalt thrown in. That cobalt really helps it stay hard when it's hot and stops it from getting soft when you're cutting fast. They usually make it by melting it in an electric arc furnace, then cleaning it up some more to make sure the stuff inside is spread out evenly. This means tools made from M35 steel work the same way every time, even if you're using them all day.
M35 High Speed Steel is liked because it's got a good mix of traits. It can handle more heat than regular HSS, but it's still easier to work with than those fancy powder steels. For toolmakers and factories, this means your tools last longer, don't cost a fortune to make, and can do all sorts of different jobs.
Product Details
Specifications & Technical Parameters
| Specifications | Technical Parameters |
| Standards | ASTM A600: M35, DIN EN ISO 4957: HS6-5-2-5, JIS: SKH55, UNS: T11335 |
| Round bars | diameter 5 mm to 200 mm |
| Flat bars | thickness 6 mm to 80 mm, width up to 300 mm |
| Plates and blocks | customized cutting available |
Typical chemical composition(wt. %)
| Carbon (C) | Chromium (Cr) | Molybdenum (Mo) | Tungsten (W) | Vanadium (V) | Cobalt (Co) |
| 0.87 – 0.95 | 3.8 – 4.5 | 4.5 – 5.2 | 5.5 – 6.7 | 1.7 – 2.1 | 4.5 – 5.0 |
Features & Advantages
Great at Handling Heat
M35 steel, unlike other high-speed steels, keeps its edge even when things get hot. That's super useful when you're drilling or milling tough stuff like alloy steel and stainless steel fast. You can cut faster without ruining the blade.
Good toughness
Although cobalt can improve the hardness, the steel still maintains sufficient impact resistance and can cope with intermittent cutting and unsatisfactory processing conditions. This makes it suitable not only for precision tools, but also for various industrial fields, because the operating conditions in these fields may be different.
Reliable grinding performance
You can shape and sharpen M35 steel with regular equipment, unlike some fancy powder metallurgy steels. This helps keep maintenance costs down while keeping performance up.
Our Strength
In Jiangsu Cunrui Metal Products Co., Ltd., we cooperate with advanced manufacturers to provide the advantages of basic materials. By obtaining ingots from reputable factories and carrying out strict quality verification, we ensure the consistency of chemistry and microstructure required for high-performance drills, end mills and blades. Our reliability in terms of supply and specifications ensures that your tool designs are executed as expected one after another.
Applications
Automotive Industry
Aerospace
General Manufacturing
FAQ
Q: What's the deal with M35 HSS compared to M2?
A: M35 has cobalt in it, so it's better at staying hard and cutting well when things get hot, unlike M2.
Q: Can I use M35 High Speed Steel to work with stainless steel?
A: Yes. It's a go-to for drilling, tapping, and milling stainless steel since it can handle the heat and doesn't wear out fast.
Q: How does the stuff come when I buy it?
A: Usually, the steel is annealed, which makes it easier to work with. But if you need it otherwise, just let us know.
Q: Can I get some papers to prove what it is?
A: For sure. We can slice bars or blocks to the size you need, and we're open to different order sizes based on what we have in stock.
Q: What about paperwork to show it's been checked out?
A: Mill test certificates are available, and if you want someone else to check it out, we can set that up too.
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