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Electrodes for welding stainless steel BES-309Mo
Product Description of BES-309Mo Handheld Electrode for Stainless Steel (A312) Austenitic Type/Dissimilar Steel Welding Compliant with: GB/T 983 E309Mo-16 AWS A5.4 E309Mo-16 A5.4M E309Mo-16 EN ISO 3581-A: No corresponding standard EN ISO 3581-B: ES309Mo-16 Purpose 1.Applies...
Description
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Product Description
BES-309Mo
Hand Electrode for Stainless Steel (A312)
Austenitic type / for welding dissimilar steels
Complies with:
GB/T 983 E309Mo-16
AWS A5.4 E309Mo-16
A5.4M E309Mo-16
EN ISO 3581-A: no corresponding standard
EN ISO 3581-B: ES309Mo-16
Purpose
1.Applicable for welding dissimilar joints of stainless steel and carbon steel;
2.Applicable for welding martensitic and ferritic stainless steels with low toughness;
3.Applicable to welding cast steel.
Characteristics
1.Hand-held electrode with titanium-calcium coating for welding stainless steel, the main composition is low-carbon 22%Cr-12%Ni-Mo. The addition of Mo provides excellent crack resistance;
2. The electric arc is stable, the seam formation is beautiful, fine flakes, very little spatter, easy slag removal, excellent fire resistance of the coating, good resistance to pore formation.
Chemical composition
| Alloy wt% | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| GB/T standard | 0.12 | 0.5-2.5 | 1.00 | 22.0-25.0 | 12.0-14.0 | 2.0-3.0 | 0.04 | 0.03 | 0.75 |
| AWS Standard | 0.12 | 0.5-2.5 | 1.00 | 22.0-25.0 | 12.0-14.0 | 2.0-3.0 | 0.04 | 0.03 | 0.75 |
| Actual value | 0.061 | 0.92 | 0.76 | 23.6 | 12.7 | 2.4 | 0.03 | 0.008 | 0.11 |
Mechanical properties
| Mechanical properties | Yield strength MPa | Tensile strength MPa | Elongation % | Impact strength J/℃ |
| GB/T standard | - | 550 | 30 | - |
| AWS Standard | - | 550 | 30 | - |
| Actual value | - | 650 | 35 | - |
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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