Leading Carbon Steel ASTM A105 Tube Fittings Manufacturer, Supplier & Exporter in India
At Mcneil Instruments, we specialize in manufacturing high-quality Carbon Steel Tube Fittings that combine strength, reliability, and cost efficiency. Designed to perform in demanding industrial conditions, our carbon steel fittings ensure secure, leak-proof, and long-lasting connections across pipelines and process systems.
Manufactured using premium-grade carbon steel, these fittings are suitable for medium to high-pressure applications and are known for their toughness, excellent machinability, and corrosion resistance when properly coated.
High-Performance Carbon Steel ASTM A105 Tube Fittings for Pressure Applications
At Mcneil Instruments, we manufacture premium-quality Carbon Steel ASTM A105 Tube Fittings designed for high-pressure and ambient temperature applications. Made from forged carbon steel, these fittings are known for their exceptional strength, toughness, and reliability, making them ideal for oil & gas, refineries, petrochemical, and power generation industries.
Our ASTM A105 Tube Fittings are precisely machined to ensure tight, leak-proof connections and long-term durability in even the harshest operating environments.
Each fitting undergoes rigorous inspection, dimensional testing, and heat treatment to meet the strict ASTM and ASME standards.
Technical Specifications
| Property | Specification / Range |
|---|---|
| Standard | ASTM A105 / ASME SA105 |
| Material Type | Forged Carbon Steel |
| Chemical Composition | C: 0.35% Max | Mn: 0.60–1.05% | Si: 0.10–0.35% | P: ≤ 0.035% | S: ≤ 0.040% | Cu: ≤ 0.40% | Ni: ≤ 0.40% |
| Tensile Strength | Minimum 485 MPa |
| Yield Strength | Minimum 250 MPa |
| Elongation | 22% Minimum |
| Hardness | ≤ 187 HB |
| Heat Treatment | Normalized or annealed as per ASTM A105 requirements |
| Surface Finish | Bright, smooth, and corrosion-protected for leak-free performance |
| Applications | Oil & Gas | Refineries | Power Plants | Petrochemical | Hydraulic Systems |
Carbon Steel WPB Tube Fittings for High-Pressure Systems
Each WPB fitting is precisely machined and rigorously tested to ensure optimal performance under extreme temperature and pressure conditions. With compliance to ASTM A234 and ASME B16.9 standards, Mcneil Instruments ensures every product meets the highest international quality benchmarks for industrial applications.
| Property | Specification / Range |
|---|---|
| Standard | ASTM A234 / ASME SA234 WPB |
| Material Type | Wrought Carbon Steel |
| Chemical Composition | C: 0.30% Max | Mn: 0.29–1.06% | P: ≤ 0.050% | S: ≤ 0.058% | Si: 0.10–0.35% |
| Tensile Strength | Minimum 415 MPa |
| Yield Strength | Minimum 240 MPa |
| Elongation | 20% Minimum |
| Hardness | ≤ 197 HB |
| Heat Treatment | Normalized or Stress Relieved as per ASTM A234 specifications |
| Surface Finish | Black Painted / Anti-corrosive Coated / Polished Finish |
| Applications | Oil & Gas Pipelines | Refineries | Power Plants | Petrochemical Processing | Shipbuilding |
Carbon Steel ASTM A234 WP11 Tube Fittings – Designed for Heat and High-Pressure Applications
At Mcneil Instruments, we design and manufacture Carbon Steel ASTM A234 WP11 Tube Fittings that deliver unmatched performance in high-temperature and high-pressure service conditions.
Crafted from chrome-moly alloy steel, these fittings are widely used in power generation, refineries, oil & gas plants, and thermal systems, where strength and stability are critical.
Complying with ASTM A234 and ASME B16.9 standards, our WP11 fittings guarantee exceptional mechanical strength, corrosion resistance, and consistent performance across demanding industrial operations.
Technical Specifications
| Property | Specification / Range |
|---|---|
| Standard | ASTM A234 / ASME SA234 WP11 |
| Material Type | Ferritic Alloy Steel (1¼Cr-½Mo) |
| Chemical Composition | C: 0.05–0.15% | Mn: 0.30–0.60% | Si: 0.50–1.00% | Cr: 1.00–1.50% | Mo: 0.44–0.65% |
| Tensile Strength | 415–585 MPa |
| Yield Strength | 205 MPa Minimum |
| Elongation | 20% Minimum |
| Hardness | ≤ 197 HB |
| Heat Treatment | Normalized and Tempered / Annealed as per ASTM A234 requirements |
| Surface Finish | Black, Pickled, or Polished Finish with Anti-Corrosive Coating |
| Applications | Power Generation | Refineries | Oil & Gas Systems | Steam Lines | Petrochemical Plants |
Carbon Steel ASTM A234 WP22 Tube Fittings by Mcneil Instruments
At Mcneil Instruments, we manufacture Carbon Steel ASTM A234 WP22 Tube Fittings that are built to perform under extreme pressure and elevated temperature conditions.
These fittings, made from 2¼Cr–1Mo ferritic alloy steel, provide exceptional creep resistance, durability, and weldability, making them ideal for use in power plants, refineries, steam pipelines, and chemical process industries.
Technical Specifications
| Property | Specification / Range |
|---|---|
| Standard | ASTM A234 / ASME SA234 WP22 |
| Material Type | Ferritic Alloy Steel (2¼Cr–1Mo) |
| Chemical Composition | C: 0.05–0.15% | Mn: 0.30–0.60% | Si: 0.50–1.00% | Cr: 1.90–2.60% | Mo: 0.87–1.13% |
| Tensile Strength | Minimum 415 MPa |
| Yield Strength | Minimum 205 MPa |
| Elongation | 20% Minimum |
| Hardness | ≤ 197 HB |
| Heat Treatment | Normalized and Tempered / Annealed as per ASTM A234 specifications |
| Surface Finish | Black, Pickled, or Polished with Corrosion-Resistant Coating |
| Applications | Power Plants | Refineries | Steam Pipelines | Oil & Gas Systems | Petrochemical Industries |
Carbon Steel ASTM A234 WP91 Tube Fittings – Engineered for Power and Durability
Every fitting is CNC-machined to precision, heat-treated, and tested for quality and durability to ensure compliance with ASTM A234 and ASME SA234 WP91 standards. At Mcneil Instruments, we take pride in offering fittings that combine engineering precision with long-term dependability — keeping your systems safe, efficient, and high-performing.
Technical Specifications
| Property | Specification / Range |
|---|---|
| Standard | ASTM A234 / ASME SA234 WP91 |
| Material Type | Ferritic Alloy Steel (9Cr–1Mo–V–Nb) |
| Chemical Composition | C: 0.08–0.12% | Mn: 0.30–0.60% | Si: 0.20–0.50% | Cr: 8.00–9.50% | Mo: 0.85–1.05% | V: 0.18–0.25% | Nb: 0.06–0.10% |
| Tensile Strength | Minimum 585 MPa |
| Yield Strength | Minimum 415 MPa |
| Elongation | 20% Minimum |
| Hardness | ≤ 250 HB |
| Heat Treatment | Normalized and Tempered as per ASTM A234 WP91 requirements |
| Surface Finish | Black, Pickled, or Polished Finish with Anti-Corrosive Coating |
| Applications | Power Generation | Steam Pipelines | Refineries | Chemical Plants | High-Temperature Service Lines |
Why Choose Mcneil Instruments for Carbon Steel Tube Fittings?
At Mcneil Instruments, we don’t just manufacture fittings — we engineer trust and reliability.
Our carbon steel tube fittings are backed by:
Decades of expertise in industrial fittings manufacturing
In-house quality testing for performance and durability
Customized solutions as per ASTM/ASME standards
Timely delivery and export-ready packaging
Looking for dependable Carbon Steel Tube Fittings?
Reach out to Mcneil Instruments today for a custom quote or technical consultation.
Contact us to discover fittings that deliver unmatched performance and longevity.


