W9Mo3Cr4V
W9Mo3Cr4V tungsten content of steel is the main medium, adding a small amount of molybdenum, vanadium content of carbon and appropriate control methods to achieve improved performance, improve quality, save for the purpose of alloying elements tungsten-molybdenum high-speed general-purpose steel. W9Mo3Cr4V Steel (hereinafter referred to as W9) of metallurgical quality, process performance both W18Cr4V steel (referred to as W18) and W6Mo5Cr4V2 steel (referred to as M12) advantages, and to avoid or significantly reduce the two major drawbacks. This is a line with our resources and production conditions, with good overall performance of the new general-purpose steel. The smelting of steel is easy, with good heat, cold plastic, finished high rate of carbide distribution superior to W18, similar to M2, decarburization sensitivity is lower than M2, and M2 production costs are lower than the W18. As the hot steel, cold plastic, which can meet the mechanical factory several times with the pull change upsetting forging, plus high-frequency impulse thermoplastic molding and cold deformation process requirements. The sound of steel cutting, grinding and welding performance is better than M2, thermal heat sensitivity than M2. The main mechanical properties of steel: hardness, red hardness levels equivalent to or slightly higher than the W18 and M2; strength, higher toughness than the W18, and M2 rather: made of machine saw blade, size drill, broach, hob, cutter , tap the service life of tools such as high than the W18, M2 is equal to or higher in the life of cutter life and M2 quite. W9 steel rolling with the rolling wheel rolling on the high-temperature alloys received a significant effect. Appropriate changes in the quenching and tempering process after, W9 is also very suitable for the manufacture of steel molds of high load, especially in cold extrusion die.
W9Mo3Cr4V the chemical composition of steel
| C | Si | Mn | W | Mo | Cr | V | S | P |
| 0.77～0.85 | 0.20～0.40 | 0.20～0.40 | 8.50～9.50 | 2.70～3.30 | 3.60～4.20 | 1.30～1.60 | ≤0.030 | ≤0.030 |
