Material name: China high carbon high chromium tool steel Cr12 - Encyclopedic

Material name: China high carbon high chromium tool steel Cr12
Materials are: die steel
The major manufacturers: Other
Physical properties: softening temperature of the steel heating 480 ℃, the second to soften the hardness of 58HRC
Availability Hardness: Annealed, 269 ~ 217HBS, quenching, ≥ 60HRC
Typical applications: 1) silicon die of the steel used for dynamic load conditions, a small press for high wear resistance, tensile and simple shapes Die.
2) is widely used in large cross-section of complex shape, withstand the impact of large, requiring high abrasion resistance, cold die steel, such as silicon dies, thread rolling die, wire drawing dies.
3) drawing die for the manufacture of durable die requested, the proposed 62-64HRC hardness
4) for the aluminum extrusion die of cold punch, it is recommended hardness 60-62HRC.
5) The bending mold for the manufacture of complex shapes for high wear-resistant die punch inserts. <Br
Related Description: high-carbon high-chromium tool steel, a high content of carbon (1.45% -2.3%) and 12% chromium, with small amounts of chromium and vanadium, are high-carbon high-chromium ledeburite. The steel has high hardenability, wear resistance and thermal stability of the compressive strength of micro-deformation, the hardening of high strength and toughness, wear resistance of low alloy tool steel than the average 3-4 times higher.

Softening temperature of the steel heating 480 ℃, the second to soften the hardness of 58HRC. Drawback is that eutectic carbide of larger, as the 5.5-6 level, the amount of tissue segregation carbide serious, easily led to hardening and embrittlement tendency of abnormal changes. The steel MS, MF point with the quenching temperature affected. Hardened oil quenching depth ≤ 200mm. In the crystallization process of the steel to form a large number of eutectic carbide network, which is about 20% carbon content of the eutectic temperature is 1150 ℃, the conversations I have very hard, very crisp, although the breakdown rolling, carbonation A certain degree of broken things, but the carbide along the rolling direction and the accumulation of massive band-like distribution network, segregation increases with the diameter of steel and serious.