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Steel with low temperature resistance

A low temperature resistance and high performance technology, applied in the field of steel with low temperature resistance, can solve the problems of steel becoming brittle, affecting the scope of use of steel, and not being able to use, etc., to achieve the effect of excellent performance

Inactive Publication Date: 2016-08-24
SUZHOU DOUBLE GOLD IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing steels tend to become brittle at low temperatures and cannot be used, which affects the scope of use of steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Provide a steel with low temperature resistance, the raw material composition of the steel includes carbon, silicon, manganese, nitrogen, nickel, chromium, iron and impurities, the raw material composition of the steel is calculated by weight percentage: carbon 0.015% , 0.37% silicon, 1.04% manganese, 0.05% nitrogen, 10.5% nickel, 18% chromium, iron and impurities: the balance, the steelmaking process of the steel includes hot charging and hot delivery of die-cast steel ingots, and then Soaking heat in the soaking furnace, rolling into tube billets through the blooming mill and billet continuous rolling mill.

Embodiment 2

[0013] Provide a steel with low temperature resistance, the raw material composition of the steel includes carbon, silicon, manganese, nitrogen, nickel, chromium, iron and impurities, the raw material composition of the steel is calculated by weight percentage: carbon 0.02% , 0.65% silicon, 0.86% manganese, 0.03% nitrogen, 9% nickel, 19% chromium, iron and impurities: the balance, the steelmaking process of the steel includes hot charging and hot delivery of die-cast steel ingots, and then Soaking heat in the soaking furnace, rolling into slabs through the blooming mill and the billet continuous rolling mill.

Embodiment 3

[0015] Provide a steel with low temperature resistance, the raw material composition of the steel includes carbon, silicon, manganese, nitrogen, nickel, chromium, iron and impurities, the raw material composition of the steel is calculated by weight percentage: carbon 0.03% , 0.75% silicon, 2.07% manganese, 0.1% nitrogen, 11.5% nickel, 17% chromium, iron and impurities: the balance, the steelmaking process of the steel includes hot charging and hot delivery of die-cast steel ingots, and then Soaking heat in the soaking furnace, and rolling into billets through the blooming mill and the billet continuous rolling mill.

[0016] The beneficial effects of the present invention are:

[0017] 1. Adjusting the raw material components and content of the steel with low temperature resistance, effectively enabling the steel to be used at low temperature;

[0018] 2. The above-mentioned steel with low temperature resistance can still guarantee its excellent performance when used at low ...

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PUM

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Abstract

The invention discloses steel with the low temperature resistance. The steel is made from, by weight, less than or equal to 0.03% of carbon, less than or equal to 0.75% of silicon, less than or equal to 2.07% of manganese, less than or equal to 0.1% of nitrogen, 9%-11.5% of nickel, 17%-19% of chrome and the balance iron and impurities. A steel making technology of the steel comprises the steps that hot charging and hot delivering are conducted on mould cast steel ingots, then soaking heating is conducted, and the steel ingots are milled into blooming mill products through a blooming mill and a steel ingot continuous mill. In this way, the steel with the low temperature resistance has the advantages that the raw material components and the raw material component content of the steel are regulated, therefore, the effect that the steel can be used at low temperature is effectively achieved, and even if the steel is not used for a long time, the excellent performance of the steel can still be guaranteed, and the fracture and damage phenomena cannot be generated.

Description

technical field [0001] The invention relates to the field of steel materials, in particular to a steel with low temperature resistance. Background technique [0002] Strictly speaking, steel is an iron-carbon alloy with a carbon content between 0.0218-2.06%. In addition to mainly containing iron and carbon, steel also contains various elements such as vanadium, and these elements have corresponding functional properties in steel. Vanadium enhances the wear resistance and ductility of steel. Vanadium is found in many types of steel, with significant amounts found in M-2, Vascowear, CPM T440V and 420VA. The biggest difference between BG-42 and ATS-34 is that the former contains vanadium. Existing steels tend to become brittle at low temperatures and cannot be used, which affects the scope of use of steel. Contents of the invention [0003] The technical problem mainly solved by the invention is to provide a steel with low temperature resistance, which can meet the demand...

Claims

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Application Information

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IPC IPC(8): C22C38/58C22C38/40C22C38/02C21D8/02
CPCC22C38/58C21D6/004C21D8/0205C22C38/001C22C38/02C22C38/40
Inventor 邵晓峰
Owner SUZHOU DOUBLE GOLD IND