Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high-performance 10crmo9-10 steel plate and its production method

A production method and high-performance technology, applied in the field of metallurgy, can solve problems such as low low-temperature impact toughness and unstable steel plate performance, and achieve the effect of stable performance and optimized performance

Active Publication Date: 2020-05-22
WUYANG IRON & STEEL
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 10CrMo9-10 steel plate is to add one or more alloying elements on the basis of carbon steel to improve and enhance the mechanical properties and hardenability of the steel plate. The seamless steel pipe made of this steel plate is widely used in hydraulic props, High-pressure gas cylinders, high-pressure boilers, chemical fertilizer equipment, petroleum cracking, automobile axle sleeves, diesel engines, hydraulic pipe fittings, etc. This steel plate is often used in high-temperature and high-pressure situations. The performance of the steel plate currently produced is unstable and prone to low-temperature impact toughness. phenomenon, in order to ensure the performance of the equipment, it is necessary to develop high-performance 10CrMo9-10 steel plate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of high-performance 10crmo9-10 steel plate and its production method
  • A kind of high-performance 10crmo9-10 steel plate and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The chemical composition and mass percentage of the high performance 10CrMo9-10 steel plate in this example are: C: 0.12%, Si: 0.30%, Mn: 0.60%, Cr: 2.3%, Mo: 1.1%, P: 0.02%, S: 0.01%, N: 0.012%, and the rest are Fe and unavoidable impurities.

[0019] The production method of the high-performance 10CrMo9-10 steel plate of this embodiment includes steelmaking, hot rolling and heat treatment processes, and the specific process steps are as follows:

[0020] (1) Steelmaking process: adopt converter + continuous casting method to make steel, add 40% of molten iron, feed Al wire 1.8kg / t steel deoxidation before adding alloy, smelt for 25min after adding alloy; VD vacuum holding time is 15min, after VD Feed Ca wire 0.60kg / t steel;

[0021] (2) Heating and rolling process: the continuous casting slab is loaded into a continuous furnace for heating and rolling, the heating temperature is 1280°C, and the rolled steel plates are stacked for 48 hours;

[0022] (3)) Heat treatme...

Embodiment 2

[0025] The chemical composition and mass percentage of the high performance 10CrMo9-10 steel plate in this example are: C: 0.10%, Si: 0.15%, Mn: 0.45%, Cr: 2.1%, Mo: 0.9%, P: 0.01%, S: 0.009%, N: 0.011%, and the rest are Fe and unavoidable impurities.

[0026] The production method of the high-performance 10CrMo9-10 steel plate of this embodiment includes steelmaking, hot rolling and heat treatment processes, and the specific process steps are as follows:

[0027] (1) Steelmaking process: adopt converter + continuous casting method to make steel, add 45% of molten iron, feed Al wire 1.5kg / t steel deoxidation before adding alloy, smelt for 26min after adding alloy; VD vacuum holding time is 17min, after VD Feed Ca wire 0.45kg / t steel;

[0028] (2) Heating and rolling process: the continuous casting slab is loaded into a continuous furnace for heating and rolling, the heating temperature is 1250°C, and the rolled steel plates are stacked for 50 hours;

[0029] (3)) Heat treatm...

Embodiment 3

[0032] The chemical composition and mass percentage of the high performance 10CrMo9-10 steel plate in this example are: C: 0.11%, Si: 0.20%, Mn: 0.50%, Cr: 2.2%, Mo: 1.0%, P: 0.015%, S: 0.008%, N: 0.010%, and the rest are Fe and unavoidable impurities.

[0033] The production method of the high-performance 10CrMo9-10 steel plate of this embodiment includes steelmaking, hot rolling and heat treatment processes, and the specific process steps are as follows:

[0034] (1) Steelmaking process: adopt converter + continuous casting method to make steel, add 42% of molten iron, feed Al wire 1.6kg / t steel deoxidation before adding alloy, smelt for 27min after adding alloy; VD vacuum holding time is 16min, after VD Feed Ca wire 0.5kg / t steel;

[0035] (2) Heating and rolling process: the continuous casting slab is loaded into a continuous furnace for heating and rolling, the heating temperature is 1260°C, and the rolled steel plates are stacked for 49 hours;

[0036] (3)) Heat treatm...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-performance 10CrMo9-10 steel plate and a production method thereof. The steel plate consists of the following chemical components in percentage by weight: 0.10 to 0.12 percent of C, 0.15 to 0.30 percent of Si, 0.45 to 0.60 percent of Mn, 2.1 to 2.3 percent of Cr, 0.9 to 1.1 percent of Mo, 0.02 percent or less of P, 0.01 percent or less of S, 0.012 percent or less ofN and the balance of Fe and inevitable impurities. The production method comprises steelmaking, heating and rolling and heat treatment. The performance of the steel plate disclosed by the invention isstable, the yield strength is higher than or equal to 350MPa, the tensile strength is 530MPa to 600MPa, the elongation is higher than or equal to 20 percent, negative 20 DEG C impact is higher than or equal to 150J, and the 400 DEG C high-temperature yield strength is higher than or equal to 250MPa; flaw detection reaches NB / T47013.3 level I, the structure of the steel plate is uniform tempered bainite structure, and the grain size is higher than or equal to level 7.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a high-performance 10CrMo9-10 steel plate and a production method thereof. Background technique [0002] 10CrMo9-10 steel plate is to add one or more alloying elements on the basis of carbon steel to improve and enhance the mechanical properties and hardenability of the steel plate. The seamless steel pipe made of this steel plate is widely used in hydraulic props, High-pressure gas cylinders, high-pressure boilers, chemical fertilizer equipment, petroleum cracking, automobile half-shaft sleeves, diesel engines, hydraulic pipe fittings, etc. This steel plate is often used in high temperature and high pressure situations. The performance of the steel plate currently produced is unstable and prone to low temperature impact toughness. In order to ensure the performance of the equipment, it is necessary to develop high-performance 10CrMo9-10 steel plate. Contents of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C21D8/02C21D1/28
CPCC21D1/28C21D8/0226C21D8/0263C21D2211/002C22C38/02C22C38/04C22C38/22
Inventor 李杰龙杰侯敬超袁锦程吴艳阳牛红星尹卫江李样兵王东阳顾自有
Owner WUYANG IRON & STEEL