FM-82,UNS N06082，EFORU

### **FM-82 / UNS N06082 - Technical Datasheet** 

 --- #### **1. Overview** 

**FM-82** (UNS N06082) is a nickel-chromium-iron-molybdenum welding filler metal specifically designed for joining a variety of nickel-based alloys and stainless steels. This alloy offers excellent weldability, good corrosion resistance, and mechanical properties that match or exceed those of many base metals it is used to join. It is particularly valued for its versatility in welding dissimilar metals and for maintenance and repair applications. 

 --- #### **2. Chemical Composition (Weight %)** 

The composition is optimized for welding applications and compatibility with various base metals. 

 | Element | Content (%) | Role & Benefit | 

|---------|-------------|----------------| 

| **Nickel (Ni)** | Balance | Provides primary matrix and corrosion resistance | 

| **Chromium (Cr)** | 18.0 - 22.0 | Confers oxidation and corrosion resistance | 

| **Molybdenum (Mo)** | 2.0 - 4.0 | Enhances strength and pitting corrosion resistance | 

| **Iron (Fe)** | 2.0 - 5.0 | Provides solid solution strengthening | 

| **Niobium (Nb)** | 1.5 - 3.0 | Prevents sensitization and enhances strength | 

| **Manganese (Mn)** | 2.0 - 4.0 | Deoxidizer and sulfur control | 

| **Titanium (Ti)** | 0.30 - 0.70 | Stabilizer and deoxidizer | 

| **Silicon (Si)** | 0.50 - 1.00 | Deoxidizer and fluidity agent | 

| **Aluminum (Al)** | 0.20 - 0.60 | Deoxidizer and nitride former | 

| **Carbon (C)** | 0.08 max | Controlled for optimal properties | 

| **Phosphorus (P)** | 0.015 max | Controlled impurity | 

| **Sulfur (S)** | 0.015 max | Controlled impurity | 

 --- #### **3. Physical Properties**

 The physical properties support its use as a welding filler metal. 

| Property            |       Value             | 

|----------|-------| 

| **Density** | 8.25 g/cm³ (0.298 lb/in³) | 

| **Melting Point** | 1370-1420°C (2500-2590°F) | 

| **Specific Heat** | 460 J/kg·K | 

| **Thermal Conductivity** | 12.5 W/m·K (at 20°C) | 

| **Coefficient of Thermal Expansion** | 14.2 × 10⁻⁶/°C (20-300°C) | 

| **Electrical Resistivity** | 1.15 μΩ·m | 

| **Modulus of Elasticity** | 205 GPa (29.7 × 10⁶ psi) | 

 --- #### **4. Mechanical Properties (Weld Metal)*

* Typical properties of all-weld-metal specimens: 

 **As-Welded Condition:

** | Property | Value | 

|----------|-------| 

| **Tensile Strength** | 620-760 MPa (90-110 ksi) | 

| **Yield Strength (0.2% Offset)** | 380-520 MPa (55-75 ksi) | 

| **Elongation** | 25-40% | 

| **Impact Toughness (Charpy V-notch)** | 60-100 J (44-74 ft-lb) | 

 **After Stress Relief (620°C/1150°F):** 

| Property | Value | 

|----------|-------| 

| **Tensile Strength** | 580-720 MPa (84-104 ksi) | 

| **Yield Strength** | 350-480 MPa (51-70 ksi) | 

| **Elongation** | 30-45% | 

 --- #### **5. Product Forms & Applications** 

**FM-82** is available in various forms and serves multiple welding applications: 

 **Available Forms:** 

- Welding electrodes (coated) 

- Bare wire for GTAW and GMAW 

- Strip for cladding applications 

 **Primary Applications:** 

- **Dissimilar Metal Welding:**  

- Joining nickel alloys to stainless steels  

- Carbon steel to stainless steel transitions  

- Mixed alloy piping systems 

 - **Maintenance and Repair:**  

- Repair of cast nickel alloy components  

- Maintenance welding on process equipment  

- Field repair of industrial machinery 

 - **Specific Alloy Welding:**  

- INCONEL 600, 601, 690  

- INCOLOY 800, 801, 825  

- Stainless steels 304, 304L, 316, 316L  

- Carbon and low-alloy steels 

 - **Industrial Sectors:**  

- Chemical processing equipment  

- Power generation systems  

- Petrochemical refineries  

- Pulp and paper industry 

 --- #### **6. International Standards** 

The material conforms to various international welding specifications: 

| Standard | Specification | 

|----------|---------------| 

| **AWS** | AWS A5.11: ENiCrFe-3
AWS A5.14: ERNiCrFe-6 | 

| **UNS** | UNS N06082 | 

| **ASME** | SFA-5.11: ENiCrFe-3
SFA-5.14: ERNiCrFe-6 | 

| **ISO** | ISO 18274: S Ni 7062 | 

| **EN** | EN 1600: E Ni 6082
EN 18274: S Ni 6082 | 

 --- #### **7. Welding Characteristics** 

 **Arc Stability:** Excellent with smooth, stable arc 

**Slag Removal:

** Easy slag removal in coated electrode form 

**Weld Appearance:

** Smooth bead profile with good wetting 

**Positional Capability:

** All-position welding capability 

**Spatter Level:

** Low spatter generation 

 --- #### **8. Special Features** 

 - **Crack Resistance:

** Excellent resistance to solidification cracking 

- **Dilution Tolerance:** Good performance with various base metal dilutions 

- **Corrosion Resistance:** Matches or exceeds many base metals 

- **High-Temperature Performance:** Suitable for elevated temperature service 

- **Versatility:** Wide range of base metal compatibility 

 --- #### **9. Storage and Handling** 

 - **Electrode Storage:** Moisture-resistant packaging required 

- **Rebaking:** 260-315°C (500-600°F) for 1-2 hours if exposed 

- **Storage Conditions:** Low humidity environment recommended 

- **Shelf Life:** 12 months in unopened packaging 

 --- #### **10. Summary** 

**FM-82 (UNS N06082)** represents a versatile nickel-chromium-iron-molybdenum welding alloy that provides reliable performance in joining a wide range of base metals. Its balanced composition ensures good mechanical properties, excellent corrosion resistance, and superior weldability across various applications. The alloy's particular strength lies in its ability to join dissimilar metals effectively, making it invaluable for maintenance, repair, and fabrication in chemical processing, power generation, and other demanding industrial sectors. Governed by comprehensive standards including AWS A5.11/A5.14 and ASME specifications, FM-82 continues to be a preferred choice for welding applications where reliability, versatility, and performance are essential requirements.

Packing of FM-82,UNS N06082 

Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1731 gallon liquid totes Special package is available on request.