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Electrodes for welding stainless steel BES-312A
Product Description of BES-312A Manual Stainless Steel Welding Electrode Austenitic-Ferritic Dual Phase Type/Dissimilar Steel Welding Compliant with: GB/T 983 E312-17 AWS A5.4 E312-17 A5.4M E312-17 EN ISO 3581-A: E(29 9)R1 2 EN ISO 3581-B: ES312-17 Purpose 1.Used for...
Description
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Product Description
BES-312A
Hand electrode for welding stainless steel
Austenitic-ferritic two-phase type / for welding dissimilar steels
Complies with:
GB/T 983 E312-17
AWS A5.4 E312-17
A5.4M E312-17
EN ISO 3581-A: E(29 9)R1 2
EN ISO 3581-B: ES312-17
Purpose
1.Applicable to various steels that are difficult to weld, prone to cracks or pores, as well as hardenable alloy steels;
2.Suitable for welding high carbon steels, tool steels and dissimilar metals.
Characteristics
1.Hand-held electrode for welding titanium-acid type stainless steel. The weld metal has an austenitic-ferritic two-phase structure, the main composition: 29%Cr-9%Ni, known as a “universal electrode”;
2. Stable arc, beautiful weld formation, fine flake, minimal spatter, easy slag removal, excellent coating fire resistance and good pore resistance;
3. Stable mechanical properties, high percentage of successful radiographic inspection.
Chemical composition
| Alloy, wt.% | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| GB/T standard | 0.15 | 0.5-2.5 | 1.00 | 28.0-32.0 | 8.0-10.5 | 0.75 | 0.04 | 0.03 | 0.75 |
| AWS Standard | 0.15 | 0.5-2.5 | 1.00 | 28.0-32.0 | 8.0-10.5 | 0.75 | 0.04 | 0.03 | 0.75 |
| Actual value | 0.058 | 1.10 | 0.74 | 28.9 | 8.6 | 0.02 | 0.025 | 0.008 | 0.10 |
Mechanical properties
| Mechanical properties | Yield strength, MPa | Tensile strength, MPa | Elongation, % | Impact strength, J/℃ |
| GB/T standard | - | 660 | 22 | - |
| AWS Standard | - | 660 | 22 | - |
| Actual value | - | 800 | 35 | - |
Recommended welding parameters: (DC+)
| Electrode diameter, mm | 2.0×250 | 2.6×300 | 3.2×350 | 4.0×350 | 5.0×350 |
| Current, A / welding in lower and horizontal position | 30-55 | 50-85 | 80-120 | 100-150 | 140-180 |
| Current, A / welding in vertical and ceiling position | 20-50 | 45-80 | 70-110 | 90-135 | - |
Welding position
Precautions
1.Use in accordance with the instructions for use of hand-held electrodes for stainless steel.
2.Preheating temperature and interlayer temperature should be kept below 150℃.
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