Premium Alloy 20 Buttweld Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a leading manufacturer, exporter, and supplier of Alloy 20 Buttweld Pipe Fittings, designed specifically for superior corrosion resistance in aggressive chemical environments. Alloy 20, a nickel-iron-chromium alloy with added copper and molybdenum, provides exceptional resistance to sulfuric acid, chlorides, and stress corrosion cracking.
Alloy 20 Buttweld Pipe Fittings are widely recognized for their excellent mechanical strength, fabrication ease, and outstanding resistance to pitting and crevice corrosion. These fittings maintain structural stability across a wide temperature range and offer excellent weldability without compromising corrosion resistance. Precisely finished bevel ends ensure reliable weld joints, smooth flow, and long-term service performance.
Commonly used in chemical processing plants, pharmaceutical industries, food processing equipment, pollution control systems, heat exchangers, and acid handling pipelines, our Alloy 20 buttweld fittings meet stringent international quality standards. Partner with Ratnadeep Steel & Engg. Co. for premium Alloy 20 buttweld pipe fittings that deliver exceptional corrosion resistance, reliability, and operational safety.
- Alloy 20 90 Deg Elbow
- Alloy 20 45 Deg Elbow
- UNS N08020 180 Deg Elbow
- DIN 2.4660 SR Elbow
- B16.9 Alloy 20 90 Degree Short Radius Elbow
- Alloy 20 45 Deg Long Radius Elbow
- ASME B16.9 Alloy 20 Equal Tee
- UNS N08020 Pipe Tee
- Alloy 20 Butt weld Tee
- ASME SB366 Alloy 20 Reducing Tee manufacturer
- DIN 2.4660 Unequal Tee
- Alloy 20 Straight Tee
- ASTM B366 Alloy 20 Eccentric Reducer Supplier
- B16.9 Alloy 20 Eccentric Reducer
- Alloy UNS N08020 Eccentric Reducers
- DIN 2.4660 Eccentric Reducer
- ANSI B16.9 Alloy 20 Concentric Reducer Supplier
- ASME SB366 Alloy 20 Concentric Reducer
- UNS N08020 Concentric Reducers
- DIN 2.4660 Concentric Reducer
- ANSI / ASME B16.9 Alloy 20 Long Stub End Supplier
- ASTM B366 / ASME SB366 Alloy 20 Lap Joint Stub End
- Alloy 20 UNS N08020 Long Stub Ends
- DIN 2.4660 Long Stub End
- ASTM B366 / SB366 Alloy 20 Short Stub End Supplier
- Incoloy® alloy 20 ASME B16.9 Short Stub Ends
- Alloy UNS N08020 Short Stub Ends
- DIN 2.4660 Short Stub End
- ASTM B366 / SB366 Alloy 20 Pipe Cap Supplier
- ASME B16.9 Alloy 20 End Pipe Cap
- Alloy UNS N08020 Pipe End Cap
- Alloy 20 Buttweld Cap
- DIN 2.4660 End Cap
- ASTM B366 / ASME SB366 Alloy 20 Equal Cross
- ASME B16.9 Alloy 20 Buttweld Cross
- Alloy UNS N08020 Unequal Cross
- DIN 2.4660 Reducing Cross
- ASME SB366 Alloy 20 Pipe Bend Exporter
- B16.9 Alloy 20 Piggable Bend
- Alloy UNS N08020 U Bend
- DIN 2.4660 Long Radius Bend
- Alloy 20 Buttweld Bend Supplier
CHEMICAL COMPOSITION OF ALLOY 20 SEAMLESS AND WELDED PIPE FITTINGS
| Element | C | Mn | Si | S | P | Cu | Ni | Cr | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 0.045 max | 3.00-4.00 | 32.00-38.00 | 19.00-21.00 | 2.00-3.00 | Remainder |
MECHANICAL PROPERTIES OF ASME SB366 ALLOY 20 BUTTWELD PIPE FITTINGS
| Grade | Tensile Strength | Yield Strength (0.2% Offset) | Elongation % | Hardness |
|---|---|---|---|---|
| Alloy 20 | 80,000 Psi min (551 MPa) | 35,000 Psi min (241 MPa) | 30% min | 85 HRB max |
Specification of Alloy 20 Buttweld Fittings
| Specifications | ASTM B366 / ASME SB366 |
|---|---|
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | Seamless Butt Weld Fittings: ½” to 10″ | Welded Butt Weld Fittings: ½” to 48″ |
| Schedule | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Type | Seamless / ERW / Welded / Fabricated |
| Thickness | 20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc. |
ALLOY 20 ASTM B366 BUTTWELD FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WNR. | EN | AFNOR | JIS | BS |
|---|---|---|---|---|---|---|
| Alloy 20 | N08020 | 2.4660 | NiCr20CuMo | Z2NCUD31-20AZ | NW 4400 | NA 20 |
PHYSICAL PROPERTIES OF ALLOY 20 BUTTWELD FITTINGS
| Property | Value |
|---|---|
| Density | 8.1 g/cm³ (0.292 lb/in³) |
| Melting Point | 1443°C (2630°F) |
| Specific Heat @ 20°C (68°F) | 0.108 Btu/lb/°F (452 J·kg⁻¹·°K⁻¹) |
| Thermal Conductivity @ 20°C (68°F) | 140 Btu·in/h·ft²·°F (20.2 W·m⁻¹·°K⁻¹) |
| Electrical Resistivity @ 20°C (68°F) | 0.90 μΩ·m |
| Mean Coefficient of Thermal Expansion (20-100°C) | 11.6 × 10⁻⁶ °K⁻¹ |
| Elastic Modulus (Young’s Modulus) | 28.0 × 10⁶ psi (193 GPa) |
| Magnetic Permeability | Non-magnetic |
💡 Practical Difference in Use
Use Alloy 20 Buttweld Pipe Fittings when: exceptional corrosion resistance is required in highly aggressive chemical environments, especially where sulfuric acid and chlorides are present. Alloy 20 is a nickel-iron-chromium alloy designed to resist pitting, crevice corrosion, and stress corrosion cracking. → Example: chemical processing plants, pharmaceutical units, acid handling systems, and pollution control equipment.
Applications of Alloy 20 Buttweld Pipe Fittings
Alloy 20 buttweld fittings are specifically developed for safe and long-lasting service in corrosive chemical applications.
- Chemical Processing: Sulfuric acid and chemical transfer lines.
- Pharmaceutical & Food: Hygienic and corrosion-resistant piping systems.
- Pollution Control: Scrubbers and waste treatment pipelines.
When to Choose Alloy 20?
Alloy 20 is ideal for applications requiring superior corrosion resistance and chemical compatibility.
Choose Alloy 20 when:
- Handling sulfuric acid and aggressive chemicals
- Resistance to pitting and stress corrosion cracking is critical
- High purity and contamination-free processing is required
- Long-term corrosion protection outweighs mechanical strength
- Used in chemical, pharmaceutical, or pollution control systems
Industries That Use Alloy 20 Buttweld Pipe Fittings
Alloy 20 fittings are widely used in industries requiring corrosion resistance and chemical stability.
Designed for highly corrosive chemical environments.
Uses
Sulfuric acid plants, chemical reactors, and transfer lines.
Why Alloy 20?
Outstanding resistance to acids and chemical attack.
Preferred for hygienic and corrosion-resistant systems.
Uses
Pharma equipment, food processing pipelines, and clean utilities.
Why Alloy 20?
High purity and excellent corrosion resistance.
Used in harsh waste treatment environments.
Uses
Scrubbers, effluent lines, and chemical waste systems.
Why Alloy 20?
Superior resistance to corrosive process media.
Usage Guide for Alloy 20 Buttweld Pipe Fittings
Directional flow change in sulfuric acid and corrosive chemical services.
Choose Elbow when
- 45°, 90°, or 180° directional change is required
- System handles sulfuric or acidic solutions
- Resistance to stress corrosion cracking is needed
- Used in chemical and fertilizer plants
Corrosion-resistant branch connections in acid handling pipelines.
Choose Tee when
- Branch or distribution piping is required
- Continuous exposure to corrosive media exists
- Leak resistance is critical
- Used in chemical reactors and process plants
Prevents gas entrapment in horizontal corrosive piping systems.
Choose Eccentric Reducer when
- Installed on horizontal pipelines
- Handling sulfuric or phosphoric acid
- Flow stability and pump protection are required
- Used in acid transfer systems
Uniform diameter transition in vertical corrosive service pipelines.
Choose Concentric Reducer when
- Vertical pipeline alignment is required
- Smooth and uniform flow transition is essential
- High corrosion resistance is required
- Used in chemical and pharmaceutical plants
Allows easy dismantling in corrosion-resistant lap joint assemblies.
Choose Long Stub End when
- Frequent maintenance or inspection is required
- Maximum corrosion resistance at flanges is critical
- Large-diameter pipelines are used
- Installed in acid processing units
Compact lap joint solution for space-restricted corrosive installations.
Choose Short Stub End when
- Installation space is limited
- Economical corrosion-resistant joints are needed
- Used in specialty chemical piping
- High corrosion resistance is essential
Seals pipe ends in highly corrosive acid environments.
Choose Pipe Cap when
- Pipe termination is required
- Used during pressure testing or future expansion
- Leak-tight sealing is critical
- Installed in acid handling systems
Four-way flow distribution in aggressive chemical piping networks.
Choose Cross when
- Four-directional branch connections are required
- Used in chemical reactors and processing plants
- High-integrity welded joints are necessary
- Resistance to acid corrosion is essential
Large-radius bends for smooth flow in corrosive acid services.
Choose Pipe Bend when
- Gradual directional change is required
- Pressure drop must be minimized
- Used in sulfuric acid and chemical piping
- Long-term corrosion resistance is essential
Our Buttweld Pipe Fittings are manufactured using advanced processes and undergo extensive quality checks to ensure flawless weldability, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.
Throughout the forming and welding stages, every buttweld fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our buttweld fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.
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