86CrMoV7, 1.2327 Tool steel

86CrMoV7, 1.2327 Tool steel - Introduction and Application

86CrMoV7, 1.2327 acc. to EN ISO 4957: 2000 are the grades with high hardenability and fracture toughness, which are designed for large-section tools for cold and hot working in the metallurgical industry. The above mentioned species are distinguished by, among others, the content of Chromium in chemical composition. The more Chromium, the better the product is for the larger work piece.NC7 steels are used as semiconductors in the state of high temperature for the production of forged cold-rolling rolls with barrel diameters up to 700mm, resistance roll shirts, dies and other parts of hot and cold rolling mill. They differ from other tool steels in the chemical composition, which consists of Chromium, Vanadium, high carbon content, and in one species of Molybdenum especially.

86CrMoV7, 1.2327 Tool steel - Chemical composition WT %

Mechanical Property of 86CrMoV7, 1.2327 Tool steel

• Hot working tenperature /℃:  1100～900
• Annealing temperature /℃:  710～750
• Hardness after annealing ≤HBW:  250
• Quenching temperature /℃:  820～860
• Cooling medium: oil /water
• Common tempering temperature /℃:  180~300
• Hardness after tempering at temperature HRC|100℃:    64
• Hardness after tempering at temperature HRC|200℃:    60
• Hardness after tempering at temperature HRC|300℃:    56
• Hardness after tempering at temperature HRC|400℃:    52

Physical Property of 86CrMoV7, 1.2327 Tool steel

Modulus of elasticity [103 x N/mm2]: 210 

Density [g/cm3]: 7.85 

Thermal conductivity [W/m.K]: 35.0 

Electric resistivity [Ohm mm2/m]: 0.30 

Specific heat capacity[J/g.K]: 0.46

Heat Treatment of 86CrMoV7, 1.2327 Tool steel

Hardening: 820-860℃/oil, water Tempering temperature: 200-600℃

Softening annealing below Ac1 w temperature 690 - 710℃ with cooling in a box, ash or sand 

Softening annealing above Ac1 w temperature 750 - 770℃ with cooling in a furnace up to 600℃ with max. of 20℃/h 

Softening annealing above Ac1 at 750 - 770 ℃ with cooling with isothermal conversion at 670 - 710 ℃ 

Hardening at 810 - 850℃ with cooling in oil Tempering at 100 ℃ in the air

Equivalent grades of 86CrMoV7, 1.2327 Tool steel

In the steel grades above we can supply:

• 86CrMoV7, 1.2327 Tool steel Steel bar
• 86CrMoV7, 1.2327 Tool steel Steel plate and sheet
• 86CrMoV7, 1.2327 Tool steel Open die and closed die forgings and forged steel
• 86CrMoV7, 1.2327 Tool steel Hot extrusion and cold-rolled welded seamless tubes pipe
• 86CrMoV7, 1.2327 Tool steel Hot-rolled and Cold-rolled strip steel
• 86CrMoV7, 1.2327 Tool steel Steel wire
• 86CrMoV7, 1.2327 Tool steel Special shaped

86CrMoV7, 1.2327 Tool steel Alloy Structural Steels stock list