SIF Sifsteel Duplex Stainless Steel TIG Filler Rods - 1.6mm to 3.2mm Dia. (ER2209)
- Material: Duplex Stainless Steel
- Pack Size: 5 KG
- Rod Diameter: 1.6 mm – 3.2 mm
- AWS Code: ER 2209

Sifsteel Duplex Stainless Steel TIG Rods are designed for welding austenitic-ferritic stainless alloys, offering high resistance to various forms of corrosion, including intergranular, pitting, and stress corrosion. The 2209 duplex rod is becoming increasingly popular in sour pipeline and offshore applications due to its robust properties and resistance to corrosive elements.
Features and Benefits
- High Corrosion Resistance: Offers protection against general, intergranular, pitting, and stress corrosion.
- Versatile Use: Suitable for welding austenitic-ferritic alloys.
- Optimal Performance: Designed for sour applications where exposure to corrosive chlorides and hydrogen sulphides can occur.
- Strength-to-Weight Ratio: Duplex material offers superior strength without added weight.
- Price Stability: Provides a cost-effective solution for various welding applications.
Common Applications
- Sour Pipeline: Ideal for environments with corrosive elements.
- Offshore Work: Provides durability and resistance in marine applications.
- Sheet and Pipe Applications: Suitable for a range of industry sectors, including:
- Petrochemical
- Chemical/Pharmaceutical
- Pulp & Paper
- Mining
- Food & Beverage
| Product Type | Duplex Stainless Steel TIG Rod |
| Part Number | RT741650 |
| Weight | 5 kg |
| Diameter | 1.6 mm – 3.2 mm |
Welding Positions

Sifsteel Stainless Duplex is designed to be used to weld parent material of a similar composition, and is common in sour applications where exposure to corrosive chlorides and hydrogen sulphides can occur.
| C | 0.02% |
| Si | 0.5% |
| Mn | 1.7% |
| Ni | 8.5% |
| Cr | 22.5% |
| Mo | 3.3% |
| Melting Point | 1440°C |
| Ultimate Tensile Strength | 765 N/mm² |
| Hardness | 240 |
| Wire Size | Amps | Tungsten, Thoriated |
|---|---|---|
| 1.0 | 40-110 | 1.2 mm |
| 1.2 | 60-130 | 1.6 mm |
| 1.6 | 80-150 | 1.6 mm |
| 2.4 | 150-260 | 2.4 mm |
| 3.2 | 210-390 | 3.2 mm |
| EN ISO 14343-B | 2209 (W 22 9 3 NL) |
| AWS A5.9 | ER 2209 |
| Brand | Weldability Sif |
| Weight | 5kg · |
| Diameter | 3.2mm · |
| AWS Classification | ER 2209 |
| Material Type | Duplex Stainless (ER2xxx) |
| TIG Rod Diameter | 1.6 mm, 2.4 mm, 3.2 mm |
| TIG Rod Weight | 5 kg |
| SKU | Weight | Diameter | Stock Status | |
|---|---|---|---|---|
| RT741625 | 2 5kg | 1 6mm | Out of Stock | £98.06 ex VAT £117.67 inc VAT |
| RT742425 | 2 5kg | 2 4mm | Out of Stock | £97.67 ex VAT £117.20 inc VAT |
| RT743225 | 2 5kg | 3 2mm | Out of Stock | £97.67 ex VAT £117.20 inc VAT |
| RT741650 | 5kg | 1 6mm | In Stock | £142.54 ex VAT £171.05 inc VAT |
| RT742450 | 5kg | 2 4mm | In Stock | £136.81 ex VAT £164.17 inc VAT |
| RT743250 | 5kg | 3 2mm | In Stock | £105.30 ex VAT £126.36 inc VAT |
Product Information
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SIF Sifsteel Duplex Stainless Steel TIG Filler Rods - 1.6mm to 3.2mm Dia. (ER2209) Get in touch
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