Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A694GRF60 carbon steel forging and preparation method thereof

A technology of A694GRF60 and carbon steel, which is applied in the field of A694GRF60 carbon steel forgings and its preparation, can solve the problems of unqualified mechanical properties, coarse grains, microcracks, etc., to improve comprehensive mechanical properties, improve hardenability, reduce The effect of microcracks

Inactive Publication Date: 2019-03-19
ZHANGJIAGANG HAIGUO HEAVY FORGING
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the forgings produced in my country mainly have unqualified mechanical properties, and internal defects such as looseness, micro-cracks, and coarse grains. The world's three major oil production equipment manufacturers do not use Chinese forgings to produce deep-sea oil production equipment.

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
  • A694GRF60 carbon steel forging and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The composition of the A694GRF60 carbon steel forging prepared by the present invention and its mass percentage content (wt.%) are: C:0.09-0.10; Si:0.20-0.23; Mn:1.30-1.32; Cr:0.16-0.19; Ni: 0.79-0.82; Mo: 0.21-0.23; Nb: 0.013-0.015; V: 0.016-0.019; P: 0.005-0.007; S: 0.001-0.004; the balance is Fe.

[0034] The composition of the A694GRF60 carbon steel forging of the present invention and its mass percentage content (wt.%) are preferably: C: 0.10; Si: 0.22; Mn: 1.31; Cr: 0.18; Ni: 0.81; Mo: 0.22; Nb : 0.014; V: 0.018; P: 0.005; S: 0.001; the balance is Fe.

[0035] A kind of preparation method of A694GRF60 carbon steel forging provided by the invention comprises the following steps:

[0036] Step (1) preparation before forging: prepare the steel ingot according to the above composition;

[0037] Step (2) forging: the octagonal steel ingot that the size of the riser end is 1130mm, the size of the nozzle end is 970mm, and the length of the ingot body is 1790mm is carri...

Embodiment 2

[0048] The composition of the A694GRF60 carbon steel forging prepared by the present invention and its mass percentage content (wt.%) are: C:0.09-0.10; Si:0.20-0.23; Mn:1.30-1.32; Cr:0.16-0.19; Ni: 0.79-0.82; Mo: 0.21-0.23; Nb: 0.013-0.015; V: 0.016-0.019; P: 0.005-0.007; S: 0.001-0.004; the balance is Fe.

[0049] The composition of the A694GRF60 carbon steel forging of the present invention and its mass percentage content (wt.%) are preferably: C: 0.10; Si: 0.22; Mn: 1.31; Cr: 0.18; Ni: 0.81; Mo: 0.22; Nb : 0.014; V: 0.018; P: 0.005; S: 0.001; the balance is Fe.

[0050] A kind of preparation method of A694GRF60 carbon steel forging provided by the invention comprises the following steps:

[0051] Step (1) preparation before forging: prepare the steel ingot according to the above composition;

[0052] Step (2) forging: the octagonal steel ingot that the size of the riser end is 1130mm, the size of the nozzle end is 970mm, and the length of the ingot body is 1790mm is carri...

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
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides an A694GRF60 carbon steel forging and a preparation method thereof. According to a texture of the A694GRF60 carbon steel forging, alloy elements such as Cr, Ni, Mo, Nb and V areadded in a trace amount on the basis of common low-carbon structural steel, and the content of each component is optimized; moreover, the preparation process conditions are further optimized, so thata product of the A694GRF60 carbon steel forging has the advantages of higher strength, good plastic toughness, low-temperature impact toughness and the like, and each performance index exceeds ASTM A694 F60 standard of the American iron and steel association and reaches the advanced level of similar products at home and abroad.

Description

technical field [0001] The invention belongs to the processing field of metal materials, in particular to an A694GRF60 carbon steel forging and a preparation method thereof. Background technique [0002] The materials of forgings for oil production equipment mainly include 4130, F22, 8630, etc., which are mainly used for deep sea valve bodies, piston rods, valve covers, etc. At present, the forgings produced in my country mainly have unqualified mechanical properties, and internal defects such as looseness, micro-cracks, and coarse grains. The world's three major oil production equipment manufacturers do not use Chinese forgings to produce deep-sea oil production equipment. Therefore, preparing high-quality forgings is an urgent problem to be solved at present. Contents of the invention [0003] In order to solve the problems existing in the prior art, the invention provides a kind of A694GRF60 carbon steel forging and preparation method thereof. The material of the A6...

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 Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/48C22C38/46C21D1/18C21D1/28C21D8/00
CPCC22C38/02C21D1/18C21D1/28C21D8/005C21D2211/001C22C38/002C22C38/04C22C38/44C22C38/46C22C38/48
Inventor 陈一凡盛雪华蒋伟
Owner ZHANGJIAGANG HAIGUO HEAVY FORGING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com