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Electrodes for welding stainless steel BES-309Z
Product Description of BES-309Z Handheld Stainless Steel Welding Electrodes (A307) Austenitic Type / Dissimilar Steel Welding / Alkali Coated Compliant with: GB/T 983 E309-15 AWS A5.4 E309-15 A5.4M E309-15 EN ISO 3581-A: E(2212)B22 EN ISO 3581-B: ES309-15 Purpose Applicable...
Description
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Product Description
BES-309Z
Hand Electrodes for Stainless Steel Welding (A307)
Austenitic type / for welding dissimilar steels / alkaline coating
Complies with:
GB/T 983 E309-15
AWS A5.4 E309-15
A5.4M E309-15
EN ISO 3581-A: E(2212)B22
EN ISO 3581-B: ES309-15
Purpose
Applicable to important structures in industries such as petrochemical industry, thermal power plants, etc. Widely used for welding dissimilar joints of stainless steel and carbon steel, as well as welding martensitic and ferritic stainless steels.
Characteristics
1.Low hydrogen manual electrode for stainless steel welding, main composition: 22%Cr-12%Ni;
2. Excellent welding and technological characteristics, high resistance to the formation of cracks and pores, more stable mechanical properties of the deposited metal, a higher percentage of passing 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 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.04 | 0.03 | 0.75 |
| AWS Standard | 0.15 | 0.5-2.5 | 1.00 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.04 | 0.03 | 0.75 |
| Actual value | 0.046 | 2.10 | 0.77 | 24.5 | 12.7 | 0.06 | 0.028 | 0.003 | 0.02 |
Mechanical properties
| Mechanical properties | Yield strength MPa | Tensile strength MPa | Elongation % | Impact strength J/℃ |
| GB/T standard | - | 550 | 35 | - |
| AWS Standard | - | 550 | 30 | - |
| Actual value | - | 625 | 40 | - |
Recommended welding parameters: (DC+)
| Electrode diameter/mm | 2.0×250 | 2.6×300 | 3.2×350 | 4.0×350 | 5.0×350 |
| Current, A (lower/horizontal position) | 30-55 | 50-85 | 80-120 | 100-150 | 140-180 |
| Current, A (vertical/ceiling position) | 20-50 | 45-80 | 70-110 | 90-135 | - |
Welding position
Precautions
1.See instructions for using hand electrodes for welding stainless steel.
2.Keep the preheating temperature and interlayer temperature below 150℃.
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