ASTM A105 Forged Fittings | ASTM A105 Carbon Steel Forged Fittings | A105 Forged Elbow | ASTM A105 Socket Weld Fittings
Table of Content
- # What are ASTM A179 Tubes?
- # Principle & Mechanism / Approach of Working:
- # ASTM A179 Tubes Specifications
- # Chemical Features of ASTM A179 Tubes
- # Mechanical Properties of ASTM A179 Tubes
- # Types of ASTM A179 Tubes
- # Equivalent Grades of ASTM A179 Tubes
- # Prices of ASTM A179 Tubes
- # Industrial Applications of ASTM A179 Tubes
- # Why Choose Jay Steel Corporation?
- # FAQs
What are ASTM A105 Forged Fittings?
How does the ASTM A105 Forged Fittings function?
ASTM A105 Forged Fittings Specifications Table:
- Standard: ASTM A105 – Carbon Steel Forgings for Piping Applications
- Product Type: Forged Fittings (Socket Weld & Threaded), Flanges, Valves, and Components
- Manufacturing Method: Forged, machined, heat-treated (as required)
- Material Type: Carbon Steel (Open-Die or Closed-Die Forgings)
- UNS Number : K03504
- Available Classes: 2000, 3000, 6000 (Threaded) and 3000, 6000, 9000 (Socket Weld)
- Applications: Oil & Gas, Petrochemical, Refinery, Power Plants, Shipbuilding, High-Pressure Piping
- Chemical Composition: Carbon: 0.35% max • Manganese: 0.60–1.05% • Phosphorus: 0.035% max • Sulfur: 0.040% max • Silicon: 0.10–0.35% • Copper/Nickel/Chromium/Molybdenum: 0.40% max each
- Mechanical Properties: Tensile Strength: 485 MPa (min) • Yield Strength: 250 MPa (min) • Elongation: 22% (min) • Hardness: 187 HBW max
- Heat Treatment: Normally supplied in normalized, normalized and tempered, or quenched and tempered condition (N+T or Q+T if specified)
- Pressure Rating : Conforms to ASME B16.11 and MSS-SP standards for pressure/temperature ratings
- Dimensional Standards : ASME B16.11 (Forged Fittings), ASME B16.5 (Flanges), ASME B16.34 (Valves)
- Types of Fittings: Elbows (45°/90°), Tees, Crosses, Couplings, Unions, Caps, Reducers, Plugs, Swage Nipples, Bosses
- End Connections: Socket Weld (SW), Threaded (NPT / BSP)
- Surface Finish: Smooth machined finish; Rust-preventive coating applied
- Testing Requirements: Hardness Test, Tensile Test, Impact Test (if required), Hydrostatic Test, NDE (if specified)
Chemical Features of ASTM A105 Forged Fittings:
| Chemical Feature | Description |
| Medium Carbon Content | Carbon up to 0.35% provides strength, hardness, and resistance to deformation under pressure. |
| Controlled Manganese Level | Manganese 0.60–1.05% improves tensile strength, toughness, and forgeability. |
| Low Sulfur & Phosphorus | Sulfur max 0.040% and phosphorus max 0.035% ensure better ductility, weldability, and reduce brittleness. |
| Silicon Addition | Silicon 0.10–0.35% promotes deoxidation, increasing material cleanliness and stability. |
| Low Alloying Elements | Copper, Nickel, Chromium, and Molybdenum are restricted to 0.40% max each, keeping the steel primarily carbon-based. |
| High Purity Carbon Steel | Controlled residual elements ensure a clean microstructure suitable for high-pressure and high-temperature piping. |
| Good Hardenability | Balanced carbon-manganese chemistry allows effective heat treatment (normalize, QT) for enhanced mechanical properties. |
| Corrosion Resistance (Moderate) | Low alloy content offers basic corrosion resistance; mainly designed for structural and pressure applications rather than aggressive environments. |
Mechanical Properties of ASTM A105 Forged Fittings:
| Property | Requirement / Value |
| Tensile Strength (Minimum) | 485 MPa (70,000 psi) |
| Yield Strength (Minimum) | 250 MPa (36,000 psi) |
| Elongation (Minimum) | 22% |
| Reduction of Area | 30% minimum |
| Hardness (Maximum) | 187 HBW or equivalent 89 HRB |
| Impact Toughness | Not mandatory; Charpy test required only when specified for low-temperature service |
| Heat Treatment Condition | Normally supplied as forged, optional normalized, normalized & tempered, or quenched & tempered |
| Ductility | High ductility enabling forming, threading, and machining without cracking |
| Strength at Elevated Temperatures | Maintains structural stability for high-pressure and moderate-temperature piping systems |
| Pressure Handling | Suitable for Class 2000, 3000, 6000 (and higher for special forged components) |
Types of ASTM A105 Forged Fittings:
Carbon Steel Forged Elbow
Carbon Steel Forged Tee
Carbon Steel Forged Cross
Carbon Steel Forged Coupling
Carbon Steel Forged Plug
Carbon Steel Forged Union
Carbon Steel Forged Pipe Nipple
Carbon Steel Forged Bushing
Carbon Steel Forged End Cap
Equivalent Grades of ASTM A179 Tubes
CONTACT JAY STEEL CORPORATION
Industrial Applications of ASTM A179 Tubes
- Heat-exchangers and condensers in might plants, chemical and petrochemical industries
- Refrigeration and cooling systems, chiefly where endless cold-drawn tube offers higher-quality surface quality
- Condensers, boiler feed-water heaters, and tubular heat-transfer equipment
- U-out of shape and coiled tube bundles for short heat-exchanger design
- Equipment where profitable weldability and fatigue resistance under thermal cycling are vital
Why Choose Jay Steel Corporation?
Our Export Destinations
FAQs
What is ASTM A179 material?
Generally this material is known to be employed in the equipment such as heat-exchangers, condensers, and other heat-transfer applications.
ASTM A179 differs from ASTM A106?
ASTM A106 concerns seamless carbon-steel pipe for high-temperature applications (such as boilers and superheaters), while ASTM A179 is specifically designed for unconfined, cold-drawn, low-carbon steel tubes for condensers & heat exchangers. As such there is no big difference but manufacturing and service processes determine the exact difference between them.
Who is the manufacturer of SA 179 tubes in India?
Several Indian manufacturers do ASTM A179 / ASME SA179 limitless tubes. We supply these tubes in India and for trade, working with trusted manufacturers under strict quality control.
What is ASTM material for boiler tubes?
Boilers and heat transfer tubes come in various ASTM origins, including ASTM , ASTM A106, A179, A192, and others. For low-carbon, cold-drawn, seamless tubing in condensers or heat , heat exchangers, ASTM A179 is appropriate.
Are ASTM A179 tubes bendable or U-shaped for heat exchange applications?
Yes. Guess what? ASTM A179 tubes are usually supplied in U-bend or coiled forms for heat exchangers. Post-flex heat-treatment is typically required to maintain mechanical characteristics and dimensional realness.