ESR M7/1.3348 High Speed Tool Steel

M7 high-speed steel is a type of tool steel known for its high toughness and wear resistance. It is composed of a combination of tungsten, molybdenum, and high levels of carbon and chromium. M7 steel has a Rockwell hardness of 62-63, making it ideal for cutting tools such as drills, saw blades, and milling cutters. It is also used in the production of parts that require high strength and durability, such as aerospace components and automobile transmissions .

Similar Grade

Main Chemical Composition%

Heat Treatment for ESR M7 / 1.3348 High-Speed Tool Steel

Annealing:

• Procedure: Heat to 850-900°C, hold for a sufficient time, then cool slowly in the furnace to approximately 500°C, followed by air cooling.

• Annealed Hardness: ≤ 255 HB.

Hardening:

• Preheating: Preheat in two stages at 600-850°C.

• Hardening Temperature: Heat rapidly to 1190-1220°C. Hold at the hardening temperature until fully heated through.

• Quenching: Quench in oil or salt bath at 540-595°C, or allow air cooling.

Tempering:

• Procedure: Temper immediately after hardening. The recommended tempering temperature is 550°C. It is advised to temper twice or thrice to achieve optimum hardness and toughness.

• Final Hardness after Tempering: 64-66 HRC.

Production process

Major Equipment

1.  Electric Arc Furnace
2. ESR
3. 5T Forging Machine
4. Vacuum Annealing Furnace

5.  Non-destructive Detector
6. Rolling Mill
7. Drawing Mill
8. Spray Forming

The other steel grades that we can offer correspond to the following:
 

TYPE	NO.	ZEICIN GRADE	SIMILAR STEEL GRADES					Application
			GB	ASTM	DIN	JIS	Brands
ZEICIN HIGH SPEED STEEL	01	DF6	W6Mo5Cr4V2	M2	S6-5-2 1.3343	SKH51	Bohler S600	Widely used for varied cutters and wear-proof cold work mold
	02	DF6Co	W6Mo5Cr4V2Co2	M2 Modify				Specially for planer knife with wear resistance
	03	DF6CoM	*W6Mo5Cr4V2 Modify	M2 Modify				Used for cold work steel and cutters, which are wear-resistant andcan resistangle-crackng
	04	DF6CoA	"W6Mo2Cr4VCo2	M2 Modify	1.3343 Modify	SKH51 Modify		Use for big size of precision cutting tool, including file, hob, gear shaper, shaving cutter
	05	DF64	*W6Mo5Cr4V4	M4	S6-5-4	SKH54		Use for high wear resisting cutters and cold mold
	06	DF35	W6Mo5Cr4V2Co5	M35	S6-5-2-5 1.3243	SKH55	Bohler S705 ERASTEEL EM35 DADO Mh55	Specially for hard and high speed cutting, good wear resistance
	07	DF42	W2Mo9Cr4VCo8	M42	S9-4-8 1.3247	SKH59	Bohler S500 ERASTEEL EM42 HITACHIYXM42	Specially for hard and high speed cutting, good tenacity
	08	DFM7	W2Mo9Cr4V2	M7	1.3348	SKH58		Low wolfram and high molybdenum with hot hardness, toughness, wear resistancebe used to manufacture threading tool
	09	DF8Co3	W2Mo8Cr4V2Co3	M7 Modify				Used for cutters ,hard and high speed cutting ,wear-resistant and tough
	10	DF5	W5Mo2Cr4V2Co					Specially for low speed cutters
	11	DF62	W6Mo2Cr4V2Co					Specially for mid-low speed cutters
	12	DF52	*W2Mo5Cr4V2Co	M52 Modify				High toughness, high wear resistance medium and low speed cutting tools, such as drill, tap, etc
	13	Df18	W18Cr4V	T1	1.3355	SKH2		Steel for general purpose cutting tools

 

Applications

Applications of ESR M7 / 1.3348 High-Speed Tool Steel

Our ESR M7 / 1.3348 High-Speed Tool Steel is designed for high-performance tooling applications, including:

• Twist Drills & Rolls

• Taps

• End Mills

• Reamers

• Threaded Cutters

• Ejector Rods

• Fastener Series Molds (Fine Blanking)

• Stamping Die - Punching Rod

With its outstanding wear resistance, toughness, and high-temperature hardness, ESR M7 / 1.3348 High-Speed Tool Steel ensures long-lasting performance in demanding industrial applications.

Customer Feedback

 

A1: Yes, we accept trial orders if the exact size is in stock.

Q4: What is your product packaging like?
A4: Our products are packaged accordingly in standard industrial packaging to ensure safety during transport. If you have special packaging requirements, please specify them when placing your order, and we will package your items accordingly.

Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.