阅读说明：本技术 一种超耐磨的h13模具钢 (Super-wear-resistant H13 die steel ) 是由 余育文 袁魁 余屹 于 2019-11-05 设计创作，主要内容包括：本发明公开了一种超耐磨的H13模具钢,各组分按重量百分比计为：C：0.32-0.45%、Si：0.80-1.20%、Mn：0.20-0.50%、P≤0.03%、S≤0.03%、Cr：4.75-5.50%、Mo：1.20-1.75%、V：1.00-1.20%,其余为Fe及不可避免的杂质。本发明H13模具钢利用合金元素Mn、Cr、Mo、V的合金手段,再加入Si元素,提高了模具钢的淬透性和耐热性,其中高成分的Mo和V进一步提高了H13钢材在700-800℃高温条件下的耐磨性和韧性,解决现有技术中H13模具钢耐磨性能差的问题。(The invention discloses super wear-resistant H13 die steel which comprises the following components in percentage by weight: c: 0.32-0.45%, Si: 0.80-1.20%, Mn: 0.20-0.50%, P is less than or equal to 0.03%, S is less than or equal to 0.03%, Cr: 4.75-5.50%, Mo: 1.20-1.75%, V: 1.00-1.20 percent, and the balance of Fe and inevitable impurities. According to the H13 die steel, an alloying means of alloy elements Mn, Cr, Mo and V is utilized, and Si is added, so that the hardenability and heat resistance of the die steel are improved, wherein the high-component Mo and V further improve the wear resistance and toughness of H13 steel at the high temperature of 700-800 ℃, and the problem of poor wear resistance of H13 die steel in the prior art is solved.)

1. The super wear-resistant H13 die steel is characterized by comprising the following components in percentage by weight: c: 0.32-0.45%, Si: 0.80-1.20%, Mn: 0.20-0.50%, P is less than or equal to 0.03%, S is less than or equal to 0.03%, Cr: 4.75-5.50%, Mo: 1.20-1.75%, V: 1.00-1.20 percent, and the balance of Fe and inevitable impurities.

2. The super wear resistant H13 die steel according to claim 1, wherein the components in weight percent are: c: 0.32%, Si: 0.80%, Mn: 0.20%, P: 0.01%, S: 0.01%, Cr: 4.75%, Mo: 1.20%, V: 1.00 percent, and the balance of Fe and inevitable impurities.

3. The super wear resistant H13 die steel according to claim 1, wherein the components in weight percent are: c: 0.36%, Si: 1.00%, Mn: 0.40%, P: 0.015%, S: 0.015%, Cr: 5.00%, Mo: 1.45%, V: 1.10 percent, and the balance of Fe and inevitable impurities.

4. The super wear resistant H13 die steel according to claim 1, wherein the components in weight percent are: c: 0.40%, Si: 1.10%, Mn: 0.45%, P: 0.02%, S: 0.02%, Cr: 5.25%, Mo: 1.60%, V: 1.15 percent, and the balance of Fe and inevitable impurities.

5. The super wear resistant H13 die steel according to claim 1, wherein the components in weight percent are: c: 0.45%, Si: 1.20%, Mn: 0.50%, P: 0.03%, S: 0.03%, Cr: 5.50%, Mo: 1.75%, V: 1.20 percent, and the balance of Fe and inevitable impurities.

Technical Field

The invention relates to the technical field of die steel, in particular to super-wear-resistant H13 die steel.

Background

H13 steel is C-Cr-Mo-Si-V shaped steel, is the most widely and typically used hot-work die steel, has high hardenability and toughness and excellent hot-crack resistance, and can be cooled by water in working occasions, but the wear resistance of H13 die steel in the prior art is relatively poor and needs to be further improved.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide super-wear-resistant H13 die steel so as to improve the wear resistance of H13 die steel.

In order to achieve the purpose, the invention adopts the technical scheme that: the super wear-resistant H13 die steel comprises the following components in percentage by weight: c: 0.32-0.45%, Si: 0.80-1.20%, Mn: 0.20-0.50%, P is less than or equal to 0.03%, S is less than or equal to 0.03%, Cr: 4.75-5.50%, Mo: 1.20-1.75%, V: 1.00-1.20 percent, and the balance of Fe and inevitable impurities.

Preferably, the components are as follows by weight percent: c: 0.32%, Si: 0.80%, Mn: 0.20%, P: 0.01%, S: 0.01%, Cr: 4.75%, Mo: 1.20%, V: 1.00 percent, and the balance of Fe and inevitable impurities.

Preferably, the components are as follows by weight percent: c: 0.36%, Si: 1.00%, Mn: 0.40%, P: 0.015%, S: 0.015%, Cr: 5.00%, Mo: 1.45%, V: 1.10 percent, and the balance of Fe and inevitable impurities.

Preferably, the components are as follows by weight percent: c: 0.40%, Si: 1.10%, Mn: 0.45%, P: 0.02%, S: 0.02%, Cr: 5.25%, Mo: 1.60%, V: 1.15 percent, and the balance of Fe and inevitable impurities.

Preferably, the components are as follows by weight percent: c: 0.45%, Si: 1.20%, Mn: 0.50%, P: 0.03%, S: 0.03%, Cr: 5.50%, Mo: 1.75%, V: 1.20 percent, and the balance of Fe and inevitable impurities.

The main alloy elements in the H13 die steel have the following functions:

silicon (Si): during the steel-making process, silicon is added as reducing agent and deoxidant, and the combination of silicon and molybdenum, tungsten and chromium can raise corrosion resistance and resist oxidation.

Manganese (Mn): in the steel-making process, manganese is a good deoxidizer and desulfurizer, not only can improve the strength and hardness of steel, but also can improve the quenching property of steel and improve the hot workability of steel.

Chromium (Cr): in structural steel and tool steel, chromium can significantly improve strength, hardness and wear resistance, but simultaneously reduce plasticity and toughness, and chromium can improve oxidation resistance and corrosion resistance of steel, so that chromium is an important alloy element of stainless steel and heat-resistant steel.

Molybdenum (Mo): molybdenum is able to refine the grains of the steel, improve hardenability and hot strength, and maintain sufficient strength and creep resistance (stress, deformation, known as creep, at high temperatures for long periods) at high temperatures.

Vanadium (V): vanadium is an excellent deoxidizer of steel, the addition of vanadium in steel can refine structure grains and improve strength and toughness, and carbide formed by vanadium and carbon can improve hydrogen corrosion resistance at high temperature and high pressure.

Compared with the prior art, the H13 die steel of the invention utilizes the alloying means of the alloying elements Mn, Cr, Mo and V, and then adds the Si element, thus improving the hardenability and heat resistance of the die steel, wherein the high-component Mo and V further improve the wear resistance and toughness of the H13 steel under the condition of high temperature (700-.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the present invention is not limited thereto.