Low-cost hot working die steel
A technology of hot work die steel and chemical composition, applied in the field of tooling and die, can solve the problems of rising smelting cost, and achieve the effects of good anti-tempering stability, good economic benefits and low cost
Active Publication Date: 2010-11-24
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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Problems solved by technology
However, steel contains relatively high content of molybdenum and vanadium and other precious elements. In recent years, the price of molybdenum and vanadium alloys has risen sharply, resulting in a sharp increase in the smelting cost of H13 steel.
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Abstract
The invention belongs to the field of tool and die, specifically to a low-cost hot die steel. The chemical compositions of the steel (weigh%) are: C: 0.38-0.42%, Si: 0.9-1.1%, S<=0.030%, P<=0.030%, Mn: 0.3-0.5%, W: 0.9-1.2%, Mo: 0.45-0.55%, Cr: 4.8-5.2%, V: 0.25-0.45%, Nb: 0.08-0.15% and Fe and unavoidable impurities: the blance. The steel of the invention can be used as a substitute for high-alloy-containing H13, has similar comprehensive performance to H13, superior temper resistance and low chromium; the rational alloy ratio saves cost more than 20%, compared with H13 steel, thus having better economical benefit.
Description
A low-cost hot work die steel technical field The invention belongs to the field of tools and molds. It is mainly used in the manufacture of hot extrusion abrasive tools and core rods, forging dies for die forging hammers, forging press dies, die inserts for precision forging machines, and die-casting dies for aluminum, copper and their alloys. In particular, it relates to a low-cost hot work die steel. Background technique With the development of machinery manufacturing industry, higher requirements are put forward for the performance and economic cost of hot work die steel. H13 steel is the most widely used and most representative hot work die steel. V is the main strengthening element, which has good strength and toughness, while maintaining high thermal fatigue resistance, so it can withstand high temperature tension, compression and impact, and can also withstand high temperature wear, oxidation and periodic temperature changes of shock and heat And so on. However,...
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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/26
Inventor 马党参陈再枝刘建华张晨周健
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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