HSS M2 1.3343 SK H9---Sheets

1.3343/M2 steel is a higher carbon version of the M1 tool (molybdenum high speed steel). 1.3343 alloy has somewhat better wear resistance than M1. Very high resistance to softening at elevated temperatures. Very high resistance to wear. Good toughness and cutting capability.

Deep hardening response.

Applications:

Twist drills, taps, milling cutters, reamers, broaches, saws, and different kinds of knives.

Quick Detail:

M2/1.3343  sheets

COMPOSITION

RELATIVE PROPERTIES

PHYSICAL PROPERTIES

· Density: 0.294 lb/in3 (8138 kg/m3)

· Specific Gravity: 8.14

· Modulus of Elasticity: 30 x 106 psi (207GPa)

· Machinability: 50-60% of a 1% carbon steel

HEAT TREATING INSTRUCTIONS

HARDENING

Preheating:To minimize distortion and stresses in large or complex tools use a double preheat.

Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1100°F (593°C) equalize, then heat to 1450-1550°F (788-843°C). 

For normal tools, use only the second temperature range as a single preheating treatment.       

Tempering:Temper immediately after quenching. Typical tempering range is 1025-1050°F (552-566°C). Hold at temperature for 2 hours, then air cool to ambient temperature. Double tempering is required. For large cross sections, and especially for blanks from which tools will be cut by wire EDM, triple tempering is strongly recommended.

ADVANTAGE:

1.High speed tungsten-molybdenum tool steel;

2.High wear resistance;

3.High decarbonization.