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Electrodes for welding stainless steel BES-309LA
Product Description of BES-309LA Hand Electrode for Stainless Steel (A062A) Austenitic Type/Dissimilar Steel Welding Compliant with: GB/T 983 E309L-17 AWS A5.4 E309L-17 A5.4M E309L-17 EN ISO 3581-A: E(2312L)R1 2 EN ISO 3581-B: ES309L-17 Purpose Used for welding dissimilar...
Description
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Product Description
BES-309LA
Hand Electrode for Stainless Steel (A062A)
Austenitic type / for welding dissimilar steels
Complies with:
GB/T 983 E309L-17
AWS A5.4 E309L-17
A5.4M E309L-17
EN ISO 3581-A: E(2312L)R1 2
EN ISO 3581-B: ES309L-17
Purpose
Used for welding dissimilar materials from stainless and carbon steel, for surfacing a transition layer of metal on the internal walls of reactors in the petrochemical industry; also used for welding low toughness martensitic and ferritic stainless steels.
Characteristics
1.Hand-held electrode with titanium coating for welding stainless steel, the main composition is low-carbon 22%Cr-12%Ni;
2. The deposited metal contains an increased amount of ferrite and has low sensitivity to cracking;
3. The coating has excellent fire resistance and good resistance to pore formation, the mechanical properties of the deposited metal are stable, and the X-ray inspection pass rate is high.
Chemical composition
| Alloy wt% | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| GB/T standard | 0.04 | 0.5-2.5 | 1.00 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.04 | 0.03 | 0.75 |
| AWS Standard | 0.04 | 0.5-2.5 | 1.00 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.04 | 0.03 | 0.75 |
| Actual value | 0.035 | 0.85 | 0.88 | 24.6 | 13.7 | 0.18 | 0.028 | 0.003 | 0.11 |
Mechanical properties
| Mechanical properties | Yield strength MPa | Tensile strength MPa | Elongation % | Impact strength J/℃ |
| GB/T standard | - | 510 | 25 | - |
| AWS Standard | - | 520 | 30 | - |
| Actual value | - | 594 | 38 | - |
Recommended welding parameters: (DC+/AC)
| Electrode diameter/mm | 2.0×250 | 2.6×300 | 3.2×350 | 4.0×350 | 5.0×350 |
| Welding Current / Amp (lower/horizontal position) | 30-55 | 50-85 | 80-120 | 100-150 | 140-180 |
| Welding Current/Amp (Vertical/Ceiling Position) | 20-50 | 45-80 | 70-110 | 90-135 | - |
Welding position
Precautions
1. Follow the instructions for using hand electrodes for stainless steel.
2.Preheating temperature and interlayer temperature should be kept below 150℃.
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