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High-toughness cast steel material

A strong toughness, cast steel technology, applied in the field of alloys, can solve the problems of poor fluidity of cast steel materials, and achieve low cost and good effect

Pending Publication Date: 2021-06-22
张玉琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the strength of cast iron has been difficult to meet people's needs for equipment and devices in extreme working environments. Cast steel is an iron-based alloy used to produce castings that does not undergo eutectic transformation during solidification, and has higher strength. , but the fluidity of cast steel material is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of strong and tough cast steel material of the present embodiment, the chemical composition of the cast steel material by weight percentage is:

[0044] C: 0.4;

[0045] S: 0.025;

[0046] Si: 0.28;

[0047] V: 0.004;

[0048] Mn: 1.12;

[0049] Cr: 1.0;

[0050] Mo: 0.4;

[0051] P: 0.03;

[0052] Ni: 0.0020;

[0053] The balance is iron.

[0054] The impact energy of the alloy cast steel material in this embodiment is greater than or equal to 30J.

Embodiment 2

[0056] A kind of strong and tough cast steel material of the present embodiment, the chemical composition of the cast steel material by weight percentage is:

[0057] C: 0.3;

[0058] S: 0.03;

[0059] Si: 0.2;

[0060] V: 0.003;

[0061] Mn: 1.1;

[0062] Cr: 0.9;

[0063] Mo: 0.3;

[0064] P: 0.02;

[0065] Ni: 0.0015;

[0066] The balance is iron.

[0067] The impact energy of the alloy cast steel material in this embodiment is greater than or equal to 30J.

Embodiment 3

[0069] A kind of strong and tough cast steel material of the present embodiment, the chemical composition of the cast steel material by weight percentage is:

[0070] C: 0.5;

[0071] S: 0.02;

[0072] Si: 0.3;

[0073] V: 0.005;

[0074] Mn: 1.2;

[0075] Cr: 1.1;

[0076] Mo: 0.5;

[0077] P: 0.04;

[0078] Ni: 0.0025;

[0079] The balance is iron.

[0080] The impact energy of the alloy cast steel material in this embodiment is greater than or equal to 30J.

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PUM

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Abstract

The invention discloses a high-toughness cast steel material. The high-toughness cast steel material is prepared from the following chemical components in percentage by weight: 0.2-0.6% of C, 0.01 - 0.04%of S, 0.12 - 0.45% of Si, 0.002 - 0.006% of V, 1.0 - 1.5% of Mn, 0.75 - 1.25% of Cr, 0.2 - 0.6% of Mo, 0.01 - 0.05% of P, 0.001 - 0.0028% of Ni, and the balance of iron. The impact energy of the high-toughness cast steel material is greater than or equal to 30 J, and the cast steel material is high in toughness, suitable for extreme climate working conditions, good in effect and low in cost.

Description

technical field [0001] The invention belongs to the technical field of alloys, and in particular relates to a strong and tough cast steel material. Background technique [0002] With the rapid development of my country's industry, the energy field, transportation and other industries have developed rapidly. In order to meet the requirements of products and services, the performance of cast steel materials requires new development and research. [0003] Types of castings include cast steel and cast iron. At present, the strength of cast iron has been difficult to meet people's needs for equipment and devices in extreme working environments. Cast steel material is an iron-based alloy used to produce castings that does not undergo eutectic transformation during solidification, and has higher strength. , but the fluidity of cast steel materials is poor. SUMMARY OF THE INVENTION [0004] The technical problem to be solved by the present invention is to provide a strong and to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46
CPCC22C38/002C22C38/02C22C38/04C22C38/44C22C38/46
Inventor 不公告发明人
Owner 张玉琪
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