1.3343 M2 High Speed Steel Bar

• After-sales Service: According to The Actual Project Application
• Warranty: According to The Actual Project Application
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN
• Technique: Cold Drawn
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Model NO.: KM-20230316
• Surface Treatment: Black/Turning/Grinding
• Alloy: Alloy
• Special Use: Mold Steel, Cold Heading Steel, Tool Steel
• Standards: GB, ASTM, DIN, JIS
• Techniques: Cold Drawn; Hot Rolled; Cold Rolled; Forged
• Processing: Annealed or Quenched and Tempered Provided
• Related Specification: M2, Skh51/Skh9, T11302, P6m5
• Transport Package: in Bundles or Wooden Boxes.
• Specification: 10mm~300mm
• Trademark: KINGMETAL
• Origin: China
• HS Code: 7228100000
• Production Capacity: 1000 Tons Per Month

Product Description

1.3343 M2 High Speed Steel bar

1.3343 M2 High Speed Steel bar is the most utilized high-speed steel in the marketplace.
It is characterized by high hot wear resistance and has good toughness even in the hardened state. The M2 was originally developed for cutting tools such as turning tools, drills, milling cutters and broaches. However, nowadays it is also widely used for cold work such as punches, thread rolling dies and rolls, and knives.
 

Steel Grade	1.3343 / M2	Application	Tool steel, Mold Steel
Shape	Round Bar	Standard	GB, ASTM, DIN,JIS
Dimension	Φ10-300 mm; length below 12m	Surface	Black, Bright, Polished, Peeled
Technique	Cold drawn; Hot rolled; Forged	Ultrasonic Test	100% UT Passed

 

DELIVERY CONDITIONS

 

	Diameter (mm)
Cold drawn	10-100
Peeled	30-160
Grinded	10-600
Turned	130-1600
Hot Rolled	20-280
Hot Forged	130-1000

 

-EAF+(ESR) or EAF+LF+VD+(ESR)

-HOT rolled or Forged, Annealed

-Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)

 

EQUIVALENT GRADES

 

AISI/SAE	DIN	JIS	GB
M2	1.3343 HS6-5-2C	SKH51	CW6Mo5Cr4V2

 

CHEMICAL COMPOSITION (%)

 

Chemical composition %   of   steel   HS6-5-2C (1.3343):   EN 4957-2000

C	Si	Mn	P	S	Cr	Mo	W	V
0.86 - 0.94	max   0.45	max   0.4	max   0.03	max   0.03	3.8 - 4.5	4.7 - 5.2	5.9 - 6.7	1.7 - 2.1

Mechanical properties of   steel   HS6-5-2C (1.3343)
 

Brinell hardness   (HB):   (+A)

269

Equivalent grades of   steel   HS6-5-2C (1.3343)

EU EN	Germany DIN,WNr	Russia GOST
HS6-5-2C	S6-5-2	R6M5

HEAT TREATMENT:

Annealing

1.1.3343/HS6-5-2C must be annealed after hot working and before re-hardening.
2.Heat the temperature to 850°C at a rate of no more than 220°C per hour.
3.Hold at the temperature for one hour per inch of thickness(at least two hours).
4.Cool slowly in the furnace or in air to ambient temperature.
5.The resultant hardness achieved should be Max 248HBW or lower.'

Hardening

1.Preheat 1.3343/HS6-5-2C to 450-500°C .then up to 850-900°C.
2.Heat to the final hardening temperature of 1200-1250°C and make sure the material must be heated through.
3.Quench in warm oil or brine,and then complete the quench in air.(care must be taken at this step)
4.1.3343/HS6-5-2C high speed steel is suitable for vacuum hardening.

Tempering

1.Tempering must be done immediately after quenching.
2.Heat thoroughly and uniformly to the tempering temperature.
3.Hold at the temperature for at least two hours (one hour per inch of the total thickness).
4.Double tempering is required.

MECHANICAL PROPERTIES

Mechanical properties	Metric	Imperial
Hardness, Rockwell C (tempered at 1150°F, quenched at 2200°F)	62	62
Hardness, Rockwell C (as hardened, quenched at 2200°F)	65	65
Compressive yield strength (when tempered at 300°F)	3250 MPa	471000 psi
Izod impact unnotched (when tempered at 300°F)	67 J	49.4 ft-lb
Abrasion (loss in mm3, as-hardened; ASTM G65)	25.8	25.8
Abrasion (loss in mm3, tempered at 1275°F; ASTM G65)	77.7	77.7
Poisson's ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30458 ksi

Below is more information for the tool steel and mould steel: