SOLUTIONS
Drilling Equipment Project
Subject :How to select welding material for the continuous digester in papermaking equipment
Component parts
Continuous digester, black liquor multi effect evaporator. Mainly using the sulfate method (cooking sodium hydroxide (NaOH) and sodium sulfide (Na2S) solutions for 1 to 2 hours)
Basemet of componet parts
hastelloy-G
hastelloy-G3
625,2507
C276， The selection of base materials for 600 alloy pipelines and 800 alloy pipelines (carbon steel+weld overlay, 316L, 2209625, etc.) depends on the pulp manufacturing method. Modern pulp making methods mainly use duplex stainless steel and high molybdenum alloys."
Reference for the use of our welding products
TIG/MIG Nickel Alloy Welding Wires:AWS ERNiCrMo-4 C276
Why choose our AWS ERNiCrMo-4 for the continuous digester in papermaking equipment
AWS A5.14 AWS ERNiCrMo-4 Description
ERNiCrMo-4 is a nickel-based alloy welding wire conforming to the AWS A5.14 standard, with nickel as the matrix and a high molybdenum-tungsten ratio. It exhibits excellent resistance to strong corrosion, particularly pitting corrosion and crevice corrosion, and is suitable for operating conditions ranging from low to high temperatures. It features superior welding processability, stable arc, dense weld seam, low tendency for hot cracking, and can achieve reliable connection of dissimilar metals.
AWS A5.14 AWS ERNiCrMo-4 Application
Used for the welding of nickel-chromium-molybdenum alloys, and also for the welding of low-carbon nickel-chromium-molybdenum alloy composite steel surfaces, low-carbon nickel-chromium-molybdenum alloys and steels, and other nickel-base alloys. Mainly used for welding 9% Ni steel in LNG projects.
AWS A5.14 AWS ERNiCrMo-4 Chemisty Analysis
Chemistry Compostion
| NI | Cr | Mo | Fe | Co | C | Mn | Si | S | P |
| Bal | 14.5%-16.5% | 15.0%-17.0% | ≤3.0% | ≤2.5% | ≤0.01% | ≤1.0% | ≤0.08% | ≤0.01% | ≤0.04% |
AWS A5.14 AWS ERNiCrMo-4 Feature
High temperature performance: Excellent oxidation resistance below 1000 ℃, suitable for high-temperature components with frequent thermal cycles (such as petrochemical cracking furnace tubes)
Corrosion resistance: It has good resistance to oxidizing acids such as nitric acid, phosphoric acid, and caustic alkali solutions
Welding processability: stable arc, beautiful weld formation, excellent slag removal, and good thermal cracking resistance
AWS A5.14 AWS ERNiCrMo-4 Supply & Standard
| MIG SIZE | 0.8mm | 1.0mm | 1.2mm | 1.6mm | ||
| MIG SPOOL | 5KG/12.5KG/15KG D300 D300 D300 |
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| TIG ROD | 1.2mm | 1.6mm | 2.0mm | 2.4mm | 3.2mm | 4.0mm |
| TIG TUBE | 5KG | 5kg | 5kg | 5KG | 5kg | 5kg |
| Coil Rods | 5.5mm | |||||
| Coil Packing | 300kgs | |||||
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