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Oxyacetylene welding
Overview table
| DURMAT® | Chem. composition | Hardness | Applications | Features | Classification |
|---|---|---|---|---|---|
| A | Fe base with WSC | WSC: 2.360 HV0.1 Mixed hardness of weld metal: 55 HRC | Tools and machine parts | Oxyacetylene rod for hardfacing on non-alloy and low-alloy steels | T Fe20 | G21-GF-55-CG |
| A-PLUS | Fe base with SWSC | SWSC: 3.000 HV0.1 Mixed hardness of weld metal: 55 HRC | Tools and machine parts | Similar to DURMAT® A, but filled with spherical tungsten fused carbide (SWSC). | T Fe20 | G21-GF-55-CG |
| B | NiCrBSi base with WSC | WSC: 2.360 HV0.1 NiCrBSi alloy: 420-450 HV0.1 | Deposition welding against abrasion and conditional corrosion, e.g. on cast iron, ferritic and austenitic steels, mixer blades, preparation plants for molding sand, pump valves, screw conveyors, grinding plates and on parts in the deep drilling industry | Flexible, bendable welding rod | T Ni20 | G21-UM-55-CG |
| BK | NiCrBSi base with SWSC | SWSC: 3.000 HV0.1 | Deposition welding against abrasion and conditional corrosion, e.g. on cast iron, ferritic and austenitic steels, mixer blades, preparation plants for molding sand, pump valves, screw conveyors, grinding plates and on parts in the deep drilling industry | Similar to DURMAT® B, but filled with spherical tungsten fused carbide (SWSC). | T Ni20 | G21-UM-55-CG |
| NIA | NiCrBSi base with WSC | WSC: 2.360 HV0.1 | Mixer blades, processing plants for molding sand, slurry pump valves, screw conveyors, deep drilling tools, corrosion-resistant coatings against heavy abrasive wear in the chemical and food industries | Oxyacetylene rod with very high resistance to abrasion High resistance of the matrix to acids, alkalis and other corrosive media | T Ni20 | G21-GF-55-CG |
| NIA-PLUS | NiCrBSi base with SWSC | SWSC: 3.000 HV0.1 | Mixer blades, processing plants for molding sand, slurry pump valves, screw conveyors, deep drilling tools, corrosion-resistant coatings against heavy abrasive wear in the chemical and food industries | Similar to DURMAT® NIA, but filled with spherical tungsten fused carbide (SWSC). | T Ni20 | G21-GF-55-CG |
| CS | Cu-Ni-Zn matrix with solid carbide grains | - | Special use in deep drilling technology, e.g. for hardfacing overdrill bits, face milling cutters, six-wing mei.els, etc. | Uniform embedding of the carbide grains in the matrix | - |
| TINNING-RODS | Nickel bronze bars | - | Coatings on drilling rigs for oil and gas production in combination with DURMAT® CS | Nickel-bronze rods with a 10 % nickel content for autogenous brazing on | - |
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