>>TBM EX (W.Nr. 1.2714), 55NiCrMoV7 | Chemical composition (%) | C | Mn | Si | P | S | Cr | Mo | Ni | V | 0.5-0.6 | 0.6-0.9 | 0.1-0.4 | max. 0.03 | max. 0.03 | 0.8-1.2 | 0.35-0.55 | 0.3-0.5 | 0.05-0.15 | | | | | | | | | | | | | >> Standard | EN ISO 4957 | | | | | | | | | | | | | | | | | | Steel characteristics: | Nickel die steel with great robustness and hardening-ability. | | | Application: | Plastic metarial pressing moulds. Devices for heat forming: Dies with great durability for forging and pressing of steel and non-iron metals, pressure plates for pressing and casting, devices for cutting and perforration under heat . Dies, devices for cold forging, tool holders. | Delivery condition: | Soft annealed steel, max.248 HB. Heat treated steel approx.380 HB. | Physical features: | Temperature [oC] | 20-100 | 20-250 | 20-500 | 20-600 | | | Thermal expansion [10-6.K-1] | 12,3 | 13,4 | 14,1 | 14,4 | | | Temperature [oC] | 20 | 350 | 700 | | | | Heat conductivity [W.m-1.K-1] | 35,9 | 38,2 | 34,8 | | | | | | | | | | | | | | | | >> Recommended temperatures for heat processing | | | | | | | | | | | | | | | | Soft annealing: | Temperature [oC] | Cooling | | | | | 650-700 | Furnace | | | | | Annealing after decreasing stress: | Temperature [oC] | Cooling | | | | | 600-650 | Furnace | | | | | Hardening and tempering: | Östenizasyon [oC] | Hardening | | | | | 840-890 | Oil, pressure gas (N2), air, vacuum, warm bath | | | | | | | | | |
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Last Updated ( Salı, 30 Aralık 2008 )
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1.2714 
