C12000 High-pressure Oil/gas Pipes
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of c12000 high-pressure oil/gas pipes in China, also supports customized service. Welcome to buy discount c12000 high-pressure oil/gas pipes for sale here from our factory. Quality products and reasonable price are available.
C12000 (TP1) High-Pressure Oil & Gas Pipes
C12000 seamless copper tubes are an excellent choice for demanding high-pressure oil and gas transmission applications due to their unique combination of material properties, which ensure safety, durability, and performance in critical systems.
Why is C12000 suitable for high-pressure oil/gas lines?
| Property | Benefit for Oil/Gas Applications |
|---|---|
| High Strength & Pressure Resistance | Withstands elevated operating pressures in hydraulic, pneumatic, and fuel systems without deformation or bursting. |
| Superior Fatigue Resistance | Maintains integrity under cyclic pressure loading and vibration, common in industrial and mobile equipment. |
| Excellent Corrosion Resistance | Resists degradation from hydrocarbons, moisture, and certain aggressive media, extending service life. |
| Good Thermal Conductivity | Helps dissipate heat generated by compression or friction in high-flow systems. |
| Non-Sparking Characteristic | Enhances safety in flammable gas or volatile liquid environments (compared to steel). |
| Ease of Fabrication & Joining | Can be bent, flared, and brazed/soldered reliably to create complex, leak-free piping assemblies. |
C12000 (TP1) Copper - Typical Chemical, Mechanical & Physical Properties
| Property Category | Specification / Typical Value | Standard / Condition | Notes |
|---|---|---|---|
| Chemical Composition | ASTM B | ||
| Copper (Cu) | ≥ 99.90% | Minimum value. | |
| Phosphorus (P) | 0.004 – 0.012% | Defines TP1 (Low residual P). | |
| Mechanical Properties | |||
| Tensile Strength | Annealed (O60): ≥ 195 MPa Hard Drawn (H80): 345 – 415 MPa |
ASTM B88 / B280 | Varies with temper and size. |
| Yield Strength (0.5% Ext.) | Annealed: ~ 45 MPa Hard Drawn: ≥ 310 MPa |
ASTM B88 / B280 | |
| Elongation (% in 50 mm) | Annealed: ≥ 40% Hard Drawn: ≥ 10% |
ASTM B88 / B280 | |
| Hardness (Rockwell F) | Annealed: ~ 45 HRF Hard Drawn: ~ 85 HRF |
Approximate values. | |
| Physical Properties | |||
| Density | 8.94 g/cm³ (0.323 lb/in³) | at 20°C | |
| Melting Point | ~1083°C (1981°F) | ||
| Thermal Conductivity | ~ 391 W/(m·K) | at 20°C | Approx. 100% IACS. Slightly higher than C12200. |
| Electrical Conductivity | ~ 101% IACS | at 20°C | Reference: 100% IACS = 58.0 MS/m. |
| Coefficient of Thermal Expansion | 17.0 x 10⁻⁶ /K | 20–300°C | |
| Key Application Features | |||
| Weldability/Brazability | Excellent | Phosphorus acts as a deoxidizer. | |
| Corrosion Resistance | Excellent (Atmospheric, Water) | Good resistance to stress corrosion cracking. | |
| Formability | Excellent (especially in annealed temper) | Suitable for bending, flaring, expanding. |
C12000 (TP1) Applications
Hydraulic Lines: For industrial machinery, presses, and mobile equipment.
Fuel & Oil Transfer Lines: In compressors, generators, and processing systems.
Instrumentation & Control Tubing: For pneumatic controls and sensor connections in harsh environments.
High-Purity Gas Lines: Where copper's cleanliness and non-contaminating properties are valued.
TP1 Standards & Specifications
Primary Standard: ASTM B75 – Standard Specification for Seamless Copper Tube (general industrial use).
Dimensional Standards: Often supplied to ASTM B88 (water tube) dimensional schedules (Types K, L, M) for compatibility with fittings.
Temper: Typically supplied in hard (H80) or half-hard (H55) temper to maximize pressure rating and mechanical strength.
Testing: Can include hydrostatic pressure testing, eddy current testing, and full material certification per customer requirements.
C12000 Comparison with Alternatives
| Material | vs. C12000 Copper |
|---|---|
| Stainless Steel | Copper is easier to bend and join, non-sparking, and more thermally conductive, but has lower ultimate tensile strength. |
| TP2/C12200 Copper | C12000 offers marginally higher strength and conductivity, beneficial for performance-critical or thermally sensitive high-pressure systems. |
| Carbon Steel | Copper is corrosion-resistant without coating, lighter, but more expensive per unit strength. |
Selection Considerations
Pressure & Temperature Ratings: Must be calculated based on tube OD, wall thickness (schedule), and temper. Hard temper C12000 provides the highest pressure capacity.
Media Compatibility: Confirm compatibility with specific oils, gases, or additives (e.g., certain synthetic lubricants or sour gases may require evaluation).
Jointing Method: Brazed/soldered joints are common; ensure proper procedure to maintain strength. Flared or compression fittings are also used.
Cost vs. Lifecycle Value: While initial cost is higher than some alternatives, copper's durability, low maintenance, and safety benefits often justify the investment.
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Our factory
Our factory specializes in the manufacturing of high-performance copper tubes, with full in-house production capabilities ranging from raw material refining to finished product delivery. We utilize advanced phosphorus deoxidation processes and intelligent temperature control technology to ensure that every TP1 copper tube delivers both excellent thermal conductivity and corrosion resistance. Through online laser inspection and digital traceability systems, we monitor product precision in real-time, while providing customers with customized welding pretreatment and just-in-time delivery services. This helps clients in the automotive, energy, and high-end equipment sectors enhance product reliability and production efficiency.
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