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AWS 5.34 ENiCrMo3T1-1/T1-4 Flux Cored Wire Supplier in Mumbai, India
Nicorex Alloys is an ISO 9001-certified supplier and stockist of ENiCrMo3T1-1/T1-4 flux-cored wire in Mumbai, India. We offer these flux-cored wires, which are specified by AWS A5.34/ASME SFA 5.34 with UNS W86625.
The ENiCrMo3T1-1/T1-4 has high nickel content, thus offering corrosion and mechanical properties. These wires offer high PREN levels for use in harsh marine and chemical environments. Breaking down the AWS classification, the ‘E’ stands for electrode, ‘NiCrMo3’ refers to the nickel alloy, ‘T’ refers to tubular wire, ‘1’ refers to all positions, and the ending ‘-1’ and ‘-4’ refer to 100% CO₂ and 75-80% Ar/CO₂ shielding gas composition, respectively. These gas-shielded, all-position nickel-chromium-molybdenum tubular electrodes deposit Alloy 625 (NiCrMo-3) chemistry 3 to 5 times faster than GTAW solid wire or SMAW covered electrodes. Nominal weld deposits contain 64.5% Ni, 21.6% Cr, 8.85% Mo, and 3.82% Nb+Ta, with iron content limited to below 1.0%. The 9% Mo concentration increases the PREN value to over 40, thus imparting high resistance to pitting and crevice corrosion. Niobium at 3.15–4.15% adds γ(Ni₃Nb) precipitation strengthening and prevents sensitisation, raising the minimum tensile requirement to 690 MPa (100 ksi). These gas-shielded, all-position nickel-chromium-molybdenum tubular electrodes deposit Alloy 625 (NiCrMo-3) chemistry 3 to 5 times faster than GTAW solid wire or SMAW covered electrodes.
Available in 0.045” (1.2 mm) and 1/16” (1.6 mm) diameters on 15 kg spools and drums, ENiCrMo3T1-1/T1-4 serves weld overlay cladding on carbon steel, 9% Ni steel LNG tank fabrication, sour service per NACE MR0175, and dissimilar joints to stainless and super austenitic steels. Every spool ships with an EN 10204 Type 3.1 Mill Test Certificate and ISO 9001 / ISO 14001 certification. Third-party approvals from DNV, Lloyds, ABS, BV, CWB, and TÜV are available on request.
ENiCrMo3T1-1/T1-4 Flux Core Specifications
| AWS Standard | AWS A5.34 / ASME SFA 5.34 |
|---|---|
| Alloy Type | Nickel-Chromium-Molybdenum (Alloy 625 type) |
| UNS Weld Metal Designation | W86625 |
| Welding Process | FCAW-G (Gas-Shielded Flux Cored Arc Welding) |
| Polarity | DCEP (Direct Current Electrode Positive) |
| Welding Positions | All (flat, horizontal, vertical-up, overhead) for T1-1/T1-4 |
| Shielding Gas |
100% CO₂; 75–80% Argon / balance CO₂ |
| Gas Flow Rate | 40–50 CFH (19–24 L/min) |
| Available Diameters | 0.045” (1.2 mm), 1/16” (1.6 mm) |
| Service Temperature | – 196°C (–320°F) to 550°C (1020°F) |
| Packaging | 33 lb (15 kg) spools, 60 lb coils, 500/800/900 lb drums |
Chemical Composition of AWS Class ENiCrMo3T1-1/T1-4 Weld Deposit (%)
| Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Niobium (Nb+Ta) | Iron (Fe) | Manganese (Mn) | Carbon (C) | Silicon (Si) | Titanium (Ti) | Sulphur (S) | Phosphorus (P) | Copper (Cu) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AWS SFA 5.34 Limit | ≥58.0 | 20.0–23.0 | 8.0–10.0 | 3.15–4.15 | ≤5.0 | ≤0.50 | ≤0.10 | ≤0.50 | ≤0.40 | ≤0.015 | ≤0.02 | ≤0.50 |
| Typical (75%Ar/25%CO₂) | ~64.5 | ~21.6 | ~8.85 | ~3.82 | ~0.60 | ~0.35 | ~0.02 | ~0.25 | ~0.20 | ~0.002 | ~0.01 | <0.01 |
Mechanical Properties of ENiCrMo3T1-1/T1-4 Weld Deposit (As-Welded)
| Property | Tensile Strength | Yield Strength | Elongation (%) | CVN at –196°C | PWHT |
|---|---|---|---|---|---|
| AWS Requirement | ≥690 MPa (100 ksi) | Not specified | ≥25% | Not specified | Not required |
| Typical -100% CO₂ | 766 MPa (111 ksi) | 455 MPa (66 ksi) | 26% | 66 J (49 ft-lbf) | — |
| Typical -75%Ar/25%CO₂ | 786 MPa (114 ksi) | 483 MPa (70 ksi) | 36% | 95 J (70 ft-lbf) | — |
Base Metals Welded with ENiCrMo3T1-1/T1-4 & P-Number Matrix
| Category | Material Grades & Technical Specs |
|---|---|
| AWS Classification | ENiCrMo3T1-1 / ENiCrMo3T1-4 |
| ASME Section IX | F-Number: F-43 (A-Number: N/A for non-ferrous) |
| Nickel Alloys | Alloy 625 (N06625), C-276 (N10276), C-22 (N06022), Incoloy 825 (N08825), 800/800H/800HT |
| Super Austenitics | AL6XN (N08367), 254 SMO (S31254), 904L, Alloy 20, Sanicro 28 |
| Specialty Steels | 9% Ni Cryogenic Steel (ASTM A353/A553 — P-11B) |
| Dissimilar Joints | Carbon Steel (P-1), Low-Alloy (P-3/P-4), Austenitic Stainless (304, 316, 321, 347) |
| Core Metallurgy | Molybdenum-stabilised, PREN >40, High Chloride/Reducing Acid resistance |
ENiCrMo3T1-1/T1-4 Flux Cored Wire Welding Parameters
| Parameter | 0.045” / 1.2 mm | 1/16” / 1.6 mm |
|---|---|---|
| Process | FCAW-G (Gas Shielded) | FCAW-G (Gas Shielded) |
| Voltage | 23–26 V | 23–26 V |
| Amperage | 130–200 A | 160–245 A |
| Wire Feed Speed | 215–450 ipm | 135–290 ipm |
| CTWD | 13–19 mm (½”–¾”) | 16–25 mm (⅝”–1”) |
| Polarity | DCEP | DCEP |
| Positions | All positions | All positions |
| Interpass Temp (max) | 150°C (300°F) | 150°C (300°F) |
| Preheat | 20°C min (ambient) | 20°C min (ambient) |
Get ENiCrMo3T1-1/T1-4 Flux Core Wire at Competitive Prices
Industries & Applications of ENiCrMo3T1-1/T1-4 Flux Core Welding Wire
The following are the industries in which ENiCrMo3T1-1/T1-4 Flux Core Welding Wire is applicable:
- Corrosion-resistant Alloy 625 overlay on carbon steel (A516 Gr.70) and low-alloy steel vessels. FCAW delivers 3–5× the deposition rate of SMAW or GTAW. Use T1-4 (Ar/CO₂) for minimum dilution and PREN >40 in the clad layer.
- Pipework for HCl/H₂SO₄/mixed-acid service, reactor vessel overlay, and heat exchanger tubesheet cladding. Mo-bearing deposit resists reducing acids after stainless, and NiCrFe wires fail.
- Sour gas (H₂S) service overlay per NACE MR0175/ISO 15156. Alloy 625 deposit is listed as acceptable for sour environments. Separators, scrubber cladding, and subsea pipeline repair are typical uses.
- Welding 9% Ni steel (ASTM A353/A553) LNG storage and transfer equipment. CVN at –196°C reaches 95 J (70 ft-lbf) with T1-4, well above cryogenic code requirements. T1-4 gas is mandatory for cryogenic applications.
- Seawater-exposed overlay, desalination evaporator cladding, and structural panels. PREN >40 resists chloride pitting and crevice corrosion in marine environments.
- Pressure vessel cladding per ASME Section III. Power plant water wall panel overlay and membrane welding. FGD system piping and coal desulphurisation equipment.
- It is also used in bleach and chloride environments to clad the digesters, washers, and evaporators.
- On-site repair of corroded equipment using portable FCAW. All-position capability is critical for field overlay where GTAW setup is impractical.
Storage, Handling & Quality Assurance
Quality documentation includes MTC 3.1 per EN 10204, ISO 9001, and ISO 14001 certification. CVN testing at specified cryogenic temperatures is available on request. CWB approval is confirmed for 0.045” diameter with M21 (75%Ar/25%CO₂) gas.
How to Order ENiCrMo3T1-1/T1-4 Flux Core from Nicorex Alloys
- AWS Classification - ENiCrMo3T1-1/T1-4 per AWS / ASME SFA 5.34
- Diameter - 1.2 mm (0.045") or 1.6 mm (1/16")
- Quantity - kg or number of spools
- Spool Size - 15 kg / 300 mm (standard) or specify (coils, drums available)
- Shielding Gas - T1-1 (CO₂) or T1-4 (Ar / CO₂) — specify for MTC
- Certification - MTC 3.1 (standard); TPI, PMI, NACE compliance on request
- Application - Overlay cladding / dissimilar joining / 9Ni steel — helps recommend gas and diameter
- Approvals - DNV / ABS / Lloyds / BV / CWB
- Matching Consumables - ERNiCrMo-3 (GTAW root) + ENiCrMo-3 (SMAW backup) as set
- Delivery - India domestic or global export