GJB 31A-2000 Specification for 30CrMnMoRE, 30CrNi2MnMoRE and 30CrNi3MoV steel plates for armour use
1 Scope
1.1 Subject content
This specification specifies the requirements, quality assurance provisions, and delivery preparation for rolled homogeneous armour steel plates of 30CrMnMoRE (code 603), 30CrNi2MnMoRE (code 617), and 30CrNi3MoV( (code 675) used for armoured vehicles.
1.2 Application scope
This specification is applicable to the manufacture of 30CrMnMoRE steel plates with a thickness of 30, 35, 45, 50, 60, 80 and 100mm, 30CrNi2MnMoRE steel plates with a thickness of 45, 50, 60, 80 and 100mm and 30CrNi3MoV steel plates with the thickness of 45, 60 and 80mm used for armoured vehicles.
2 Normative references
GB 222-84 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
GB/T 229-1994 Metallic materials - Charpy notch impact test
GB 231-84 Metallic materials - Brinell hardness test
GB/T 247-1997 General rule of acceptance, package, mark and certification for steel plates (sheets) and strips
GJB 59.17-88 Test operations procedure for armoured vehicles - Armour plate shell-proof test
GJB 1496A-2000 Specification for 28Cr2Mo, 26SiMnMo and 22SiMn2TiB steel plates for armour use
See Annex A (Supplementary) for the reference standards of chemical analysis methods of relevant elements.
3 Requirements
3.1 Smelting method
Steel shall be smelted by converter plus ladle refining or electric arc furnace. Steel 675 shall be smelted by electric arc furnace plus VHD or equivalent vacuum ladle refining. As agreed by the supplier and the purchaser and specified in the contract, other methods that can meet the requirements of this specification can also be used for smelting.
Contents
1 Scope
2 Normative references
3 Requirements
4 Quality assurance requirements
5 Preparation for delivery
6 Explanatory notes
Annex A (Supplementary) Reference standards of chemical analysis methods
Additional explanation:
Standard
GJB 31A-2000 Specification for 30CrMnMoRE, 30CrNi2MnMoRE and 30CrNi3MoV steel plates for armour use (English Version)
Standard No.
GJB 31A-2000
Status
valid
Language
English
File Format
PDF
Word Count
5000 words
Price(USD)
200.0
Implemented on
2000-9-1
Delivery
via email in 1 business day
Detail of GJB 31A-2000
Standard No.
GJB 31A-2000
English Name
Specification for 30CrMnMoRE, 30CrNi2MnMoRE and 30CrNi3MoV steel plates for armour use
GJB 31A-2000 Specification for 30CrMnMoRE, 30CrNi2MnMoRE and 30CrNi3MoV steel plates for armour use
1 Scope
1.1 Subject content
This specification specifies the requirements, quality assurance provisions, and delivery preparation for rolled homogeneous armour steel plates of 30CrMnMoRE (code 603), 30CrNi2MnMoRE (code 617), and 30CrNi3MoV( (code 675) used for armoured vehicles.
1.2 Application scope
This specification is applicable to the manufacture of 30CrMnMoRE steel plates with a thickness of 30, 35, 45, 50, 60, 80 and 100mm, 30CrNi2MnMoRE steel plates with a thickness of 45, 50, 60, 80 and 100mm and 30CrNi3MoV steel plates with the thickness of 45, 60 and 80mm used for armoured vehicles.
2 Normative references
GB 222-84 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
GB/T 229-1994 Metallic materials - Charpy notch impact test
GB 231-84 Metallic materials - Brinell hardness test
GB/T 247-1997 General rule of acceptance, package, mark and certification for steel plates (sheets) and strips
GJB 59.17-88 Test operations procedure for armoured vehicles - Armour plate shell-proof test
GJB 1496A-2000 Specification for 28Cr2Mo, 26SiMnMo and 22SiMn2TiB steel plates for armour use
See Annex A (Supplementary) for the reference standards of chemical analysis methods of relevant elements.
3 Requirements
3.1 Smelting method
Steel shall be smelted by converter plus ladle refining or electric arc furnace. Steel 675 shall be smelted by electric arc furnace plus VHD or equivalent vacuum ladle refining. As agreed by the supplier and the purchaser and specified in the contract, other methods that can meet the requirements of this specification can also be used for smelting.
Contents of GJB 31A-2000
Contents
1 Scope
2 Normative references
3 Requirements
4 Quality assurance requirements
5 Preparation for delivery
6 Explanatory notes
Annex A (Supplementary) Reference standards of chemical analysis methods
Additional explanation:
