DESCRIPTION
GB 08A can be used for copper-coated solid welding wire for submerged arc welding. Weld metal zone has excellent synthetic technological properties when corresponding welding flux is used. With a higher deposition efficiency, high quality and low intensity of labour, etc.
APPLICATION
The welding wires are used for welding important structures of low carbon structural steel and low alloy steel. Such as boilers, pressure vessels from chemical works and nuclear power station, bridges and ships, etc.
Sizes of wire: Diameter Φ（mm）2.0、2.5、3.2、4.0、5.0
Typical mechanical properties of deposited metal: Accord with GB/T14957-94
| Yield point σ0.2 Mpa |
Tensile Strength σ0.2 Mpa |
Elongation σ5% |
V-Type Charpy Impact
Value (ambient temp.)J |
| 409 |
527 |
28.3 |
65 |
List of Welding Wires For Submerged Arc Welding
| Brand |
GB/T14957 |
AWS |
熔敷金屬機械性能 |
Corresponding
Welding Flux |
Tensile
Strength
σb Mpa |
Yield point
σ0.2 Mpa |
Elongation σ5% |
V-Type Charpy
Impact Value J |
| GB 08A |
H08A |
EL8 |
HJ431 |
410~550 |
≥330 |
≥22 |
0℃≥34 |
| GB 08MnA |
H08MnA |
EM12 |
HJ431 |
≈550 |
≈390 |
≈30 |
常溫≈80 |
| GB10Mn2 |
H10Mn2 |
EM14 |
HJ350 |
≈570 |
≈400 |
≈18 |
常溫≈100 |
| GB 10MnSi |
H10Mn2 |
EM14 |
HJ350 |
≈570 |
≈400 |
≈18 |
0℃≥27 |
Typical Chemical of Welding Wire (%)
| Brand |
Chemical composition |
| C |
Mn |
Si |
S |
P |
Cu |
| GB 08A |
≤0.10 |
0.30~0.55 |
≤0.03 |
≤0.030 |
≤0.030 |
≤0.20 |
| GB 08MnA |
≤0.10 |
0.80~1.10 |
≤0.07 |
≤0.030 |
≤0.030 |
≤0.20 |
| GB10Mn2 |
≤0.12 |
1.5~1.9 |
≤0.07 |
≤0.035 |
≤0.035 |
≤0.20 |
| GB 10MnSi |
≤0.14 |
0.80~1.10 |
0.60~0.90 |
≤0.035 |
≤0.035 |
≤0.20 |
Cu: (%) include copper-coated layer.
Gas-shielded flux-cored welding wire for low-carbon steel and type CO2 gas-shielded flux-cored welding wire. It is widely used for welding structures made of carbon steel and low-alloy structural steel with tensile strength higher than or equal to 490MPa.Most widely used for welding some key structures like shipbuilding .mechanical manufactures, pressure vessels,boilers,petroleum machinery,chemical machinery ,hoisting machinery,etc.
|
TY71T-1(E71T-1) |
| Classification |
Chemical composition (average) |
Mechanical Properties Of Deposited metal |
diameter mm |
Package |
| AWS A 5.18 ER71T-1 |
C%
Mn%
Si%
P%
S% |
0.04
1.45
0.50
<0.020
<0.020 |
Rm N/mm²
Rs N/mm²
A%5d
kV (J)-30°C |
≧520
≧410
≧22
≧27 |
0.80
1.00
1.20
1.60 |
5KG
15KG
20KG |
|
Shielding gas EN 439 C1 (CO2) and mixtures M21 - M33.
Approvals: LR,ABS,GL |
|
TY71T-5(E71T-5) |
| Classification |
Chemical composition (average) |
Mechanical Properties Of Deposited metal |
diameter mm |
Package |
| AWS A 5.18 ER71T-5 |
C%
Mn%
Si%
P%
S% |
0.06
1.45
0.50
<0.020
<0.020 |
Rm N/mm²
Rs N/mm²
A%5d
kV (J)-30°C |
≧480
≧420
≧22
≧ 27 |
0.80
1.00
1.20
1.60 |
5KG
15KG
20KG |
|
Shielding gas EN 439 C1 (CO2) and mixtures M21 - M33.
Approvals: LR,ABS,GL |
