JB/T 56102.2-1999 Carbon steel welding rod, low alloy steel welding rod, stainless steel welding rod product quality classification Part 2: Low alloy steel welding rod product quality classification JB/T56102.2-1999 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T56102.2-1999
Carbon Steel Welding Rod, Low Alloy Steel Welding Rod,
Stainless Steel Welding Rod
Product Quality Grading Part 2:
Low Alloy Steel Welding Rod Product Quality Grading
(Internal Use)
Published on December 30, 1999
State Machinery Industry Bureau
Implementation on June 1, 2000
JB/T5610 2.2—1999
1 Scope
2 Reference standards
3 Technical requirements
4 Sampling
5 Test methods
Inspection rules
JB/T56102.2—1999
This standard is based on GB/T51181995 "Low alloy steel welding rods", and is a revision of the low alloy steel welding rod part in JB/56102-94 "Quality classification of carbon steel welding rods, low alloy steel welding rods, and stainless steel welding rods". Compared with the low alloy steel welding rod part in JB/T56102-94, the main technical content of this standard has been changed as follows: - The re-arcing interval time has been adjusted; - The dust generation item in the process performance has been cancelled. This standard is part of the JB/T56102 series of standards "Quality classification of carbon steel welding rods, low alloy steel welding rods and stainless steel welding rods", which includes the following three parts: JB/T56102.1-1999 Quality classification of carbon steel welding rods JB/T 56102.2-1999
Quality classification of low alloy steel welding rods
JB/T56102.3-1999
Quality classification of stainless steel welding rods
This standard replaces JB/T56102-94 from the date of implementation. This standard is proposed and managed by the National Welding Standardization Technical Committee. The drafting units of this standard are Harbin Welding Research Institute and Tianjin Jinqiao Welding Materials Co., Ltd. The drafters of this standard are Chen Mo, Chu Jijun, Wu Zhenxiang and Hou Yongtai. This standard was first issued in 1980, revised for the first time in 1985, and revised for the second time in 1988. This is the revision II
1 Scope
Standard of the Machinery Industry of the People's Republic of China
Carbon Steel Welding Rod, Low Alloy Steel Welding Rod,
Stainless Steel Welding Rod
Product Quality Grading Part 2:
Product Quality Grading of Low Alloy Steel Welding Rod
(Internal Use)
JB/T56102.2-1999
Replaces JBT56102-94
This standard specifies the technical requirements, sampling, test methods and inspection rules for the product quality grade of low alloy steel welding rods. This standard is applicable to the product quality grading of low alloy steel welding rods. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest version of the following standards. GB/T5118-1995 Low alloy steel welding rod
3 Technical requirements
The product quality of low alloy steel welding rods is divided into three levels: qualified products, first-class products and superior products. They are assessed according to their external quality, internal quality and process performance.
3.1 External quality
The external quality shall comply with the provisions of Table 1.
Table 1 External quality
Inspection items
External quality (score)
Average root pass rate%
Eccentricity (score)
Welding rod clamping end
3.2 Internal quality
3.2.1 Chemical composition of deposited metal
Qualified products
The chemical composition of deposited metal shall comply with the provisions of Table 2. Approved by the State Bureau of Machinery Industry on 1999-12-30
≥850
≥970
Superior product
Clamping end is neat and beautiful, and there is no obvious rust on the exposed core part. 2000-06-01 implementation
Electrode model
E5010-A1
ES011-A1
E5003-A1
E5015-A1
E5016-AI
E5018-A1
E5020-A1
E5027-A1
E5500-B1
E5503-BI
E5515-BI
E5516-BI
E5518-BI
E5515-B2
E5515-B2L
E5516-B2
E5518-B2
E5518-BR2L
E550 0-BV
E5515-B2-V
E5515-R-VNb
E5515-B2-VW
E5500-B3-VWB
E5515-B-VWB| |tt||E5515BVNb
E6000-B3
E6015-BBI
E6015-B
E6016-B3
E6018-B3
E 6018-B3L
JB/T56102.2-1999
Table 2 Chemical composition of deposited metal
Qualified products,
Middle-grade products, superior products
Carbon-molybdenum steel welding rod
0.0350.60
Chromium-molybdenum steel welding rod
Welding rod model
E5515-B4L
E5516-B5
E5515-Cl
E5516-CI
E55 18-CI
ES015-CIL
ES016-CIL
E5018-CIL
E5516-C2
E5518-C2
E5015- C2L
E5016-C2L
E5018-C2L
E5515-C3
E5516-C3
E5518-C3
E5518-NM|| tt||E6015-DI
E6016-DI
E6018-D1
E5515-D3
E5516-D3
E5518-D3
E7015-D2
E7016-D2
E7018-D2
JB/T56102.2-1999
Table 2 (continued)
Qualified products,
Qualified products, superior products|| tt||Chrome-molybdenum steel welding rod
Nickel steel welding rod
Manganese-molybdenum steel welding rod
Welding rod model
EX×10G
EX×11-G
EXX13-G
EX×15-G
EXX16-G
EXX18G
E5020-G
E6018-M
E7018-M
E7518-M
E8518-M
E8518-MI
ES018-W
E5518-W
JB/T56102.2—1999
Table 2 (end)
Qualified products,bZxz.net
Qualified products, superior products
All other low alloy steel welding rods
≥080
1The "××" in the welding rod model represents the different tensile strength grades of the welding rod (50, 55, 60, 70, 75, 80, 85, 90 and 100). 2Unless otherwise specified, the single values ​​in the table are all maximum values. 3The aluminum content of E5518-NM type welding rod is not more than 0.05%. 4EXXXX-G type welding rod only needs one element to meet the requirements in the table. When the -40C impact performance requirement is ≥54J, the welding rod model is EXXXX-E3.2.2 Mechanical properties
a) The tensile test results of the deposited metal shall comply with the requirements of Table 3: 4
Welding rod model
E5003-x
E5010-
E5011-X
E5015-X
E5016-X
E5018-x
E5020-x
E5(27-×
E5500-x
E5503-X
E5510-×
E5511-x| |tt||E5513-X
E5515-
E5516-×
E5518-x
E5516-C3||t t||E5518-C3
E6000-×
E6010-x
E6011-x
E6013-x||t t||E6015-×
E6016-×
E6018-×
E6018-M
E7010-×||tt| |E7011-x
E7013-×
E7015-×
E7016-×
E7018-x
E7018-M
Tensile strength 0b
JB/T56102.2—1999
Table 3 Tensile properties
Service point. .or|| tt||Service strength 00.2
Qualified products, first-class products, superior products
440-540
Qualified products
Elongation 85
Superior products
Welding rod model
E7515-x
E7516-x
E7518-X
E7518-M
E8015-x
E8016-x
E8018-X
E8515-x
E8516-×| |tt||E8518-×
E8518-M
E8518-MI
E9015-
E9016-||tt ||E9018-
E10015-×
E10016-X
E10018-X
Tensile strength 0b
JB/T56102.2—1999
Table 3 (end)
Service point. .or
Yield strength '0.2
Qualified products, first-class products, superior products
1The single values ​​in the table are all minimum values.
2The yield strength of E50X×-× type after welding should not be less than 410MPa. Qualified products
Elongation 85
First-class products
3The tensile strength of E8518-M1 type welding rod is generally not less than 830MPa. If the supply and demand parties reach an agreement, it can also be an exception. 4 The welding rod model with additional chemical components shall comply with the mechanical properties of the corresponding non-additive chemical components. 5 The yield strength of E55××-B3-VWB welding rod shall not be less than 340MPab) The results of the Charpy V-notch impact test of the weld metal shall comply with the provisions of Table 4. Superior products
Welding rod model
E5015-A1
E5016-A1
E5018-AI
E5515-B1
E5516-B1
E5518-BI
E5515-B2
E5515-B2L
E5516-B2
E5518-B2
E5518B2L
E5500-B2-V
E5515-B2 -V
E5515-B2-VNb
E5515B2-VW
E5515-B3-VWB
E5515-B 3-VNb
E6000-B3
E6015-B3L
E6015-B3
E6016-B3||tt ||E6018-B3
E6018-B3L
E5515-B4L
E5516-B5
E5518- NM
E5515-C3
E5516-C3
E5518-C3
E5516-D3
E5 518-D3
E6015-DI
E6016-DI
E6018-DI
Qualified product
JB/T 56102.21999
Table 4 Impact performance
Charpy V-notch impact absorption energy
Superior product
Test temperature
Welding rod model
E7015-D2
E7016-D2
E7018-D2
E6018-M
E7 018-M
E7518-M
E8518-M
E8518-MI
E5018-W
E5 518-W
E5515-C1
E5516-C1
E5518-C1
E5015-CIL||tt| |E5016-CIL
E5018-CIL
E5516-C2
E5518-C2
E5015-C2L
E5016-C2L
E5018-C2L
EX×××E
All other models
Qualified products
JB/T56102.2-1999
Table 4 (end)
Charpy V-notch impact absorption energy
Superior products
Recommended requirements
Test temperature
Note: EX×××-CI, EX×××-CIL, EX×××-C2 and E××××-C2L ​​are impact properties after stress relief. 3.2.3
Radiographic flaw detection of weld metal
Radiographic flaw detection requirements of weld metal shall comply with the provisions of Table 5. Table 5 Radiographic flaw detection requirements of weld metal
Welding rod model
EX×X15-X、1
EX ×16-X、EX X18-X
E5020-X
Ex×00-X、Ex×03-X、ExX10-X
EX×11-X、EXX13-X、E
E5027X
Radiographic flaw detection film requirements of weld metal
Qualified products, first-class products, superior products
JB/T56102.2—1999
3.2.4 Water content of coating or diffusible hydrogen content of deposited metal The water content of coating or diffusible hydrogen content of deposited metal shall comply with the requirements of Table 6 or Table 7. Table 6 Water content of coating
Water content of coating
Welding rod model
E5015-X
E5018-X
E5516-X
E5016-X
E5515-X
E5518-X
E5015-XR
E5016-XR
E5018-XR E5515-XR
E5516-XR E5518-XR
E6015-X
E6016-X
E6018-x
E6015-XR
E6018-×R
E7015-X
E7018-X
E751 6-X
E8015-X
E8018-X
E8516-x
E9015-X
E9018-X
E10016-X
E8515-M1
E5015-X||t t||E5515-X
E6015-x
E7015-x
E7515-x
E8015-×
E8515-×
E9015-X
E10015-X
E851 8-M1
E6016-XR
E7016-X
E7515X
E7518-×
E8016-
E8515-X
E8518-×
E9016-X||tt| |E10015-x
E10018-X
EX×XX-E
Welding rod model
E5016-×
E5516×
E6016-X
E7016-X
E7516-X
E8016-X
E8516-X
E9016-X
E5018-×
E5518-x
E6018-×
E7018-×
E7518-×
E80 18-X
E8518-×
E9018-x
E10016-x
E10018-x
EX×××-E
Normal state
Qualified product,
First-class product, superior product
≤015
≤010
Table 7 Diffusible hydrogen content of deposited metal
Moisture absorption state
Diffusible hydrogen content of deposited metal
Glycerol method
Qualified product,
mL/100g
Chromatography or mercury method
First-class product, superior product
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