Heavy Duty M2 Steel For Milling Cutters Flute Resharp Performance Comparisons - China

M2 steel for milling cutters has served the machine shop world for over half a century, and even in the carbide era it remains the standard blank material for HSS end mills, side milling cutters, slot drills, gear cutters and form cutters.

This guide approaches the grade from a milling master's point of view: how material choice shows up in flute grinding, in-co rotation stability and re-sharpening economics over the cutter life cycle.

Why flute grinding favors M2 steel for milling cutters:

- Spheroidized annealed structure at max 255 HB grinds smoothly on CNC fluting centers without micro-chipping the cutting edge

- Vanadium MC carbides support the cutting corner during grinding and later during dry cutting of die steel and structural alloys

- Centerline soundness matters for core thickness; our bars are UT verified from 20mm up so no inclusions sit in the Web region Choosing blank forms of M2 steel for milling cutters:

1 - Round hobs and end mill stock: peeled or centerless ground bar 3-120mm, straightness within 0.3mm per meter

2 - Slab and side cutters: forged disc and block stock, rough machined with UT and macro record

3 - Small end mills: cold drawn wire or ground bar in h7 tolerance for CNC grinders

4 - Custom blanks: sawn and chamfered according to your cutter layout to save setup time Heat treatment window validated for cutter applications:

- Stage preheat 450 then 850°C, austenitize 1200-1220°C, gas or salt quench

- Triple temper 555-565°C; final hardness 63-65 HRC

- For small diameter cutters reduce soak slightly to preserve tip toughness; for form cutters stress relieve after rough profiling Re-sharpening economics: HSS mill inserts made from M2 steel for milling cutters can be re-ground five to eight times before scrap, giving a cost per cutting meter far below disposable carbide in heavy duty shops.

That is why maintenance departments of rail, die and gear factories still order M2 blanks by the ton.

Our stock program covers M2 steel for milling cutters in all blank forms with EN 10204 3.1 certification, spheroidized annealed condition, optional ESR quality and complete traceability.

Trial blanks are supplied with documentation for new cutter validation.

Songshun Massive Stock

We keep a mass stock are over 20000 tons for various steel type, including steel round bar, steel sheet, alloy steel, carbon steel, stainless steel, mold steel, steel coil and etc.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
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