Oilfield supply requires materials built for extreme conditions.Components must withstand high pressure,corrosive chemicals,and severe heat.This necessity makes high-grade stainless steel mandatory for crucial operations.Reliable stainless steel pipes,stainless steel pipe fittings and valves are the core of any stable oil and gas infrastructure.
What is An Oilfield Environment?
Oilfields represent an extremely challenging industrial environment involving the extraction and processing of hydrocarbons.Fluids often contain hydrogen sulfide(H2S) and carbon dioxide(CO2).
These gases create an extremely corrosive acidic environment.Furthermore,the system operates under high temperatures and immense pressure.This harsh combination rapidly erodes standard metals.
Why Stainless Steel is Crucial for Oilfield Supply
- Corrosion Resistance:
The chromium oxide layer resists acid attack. This protects the component from chemical degradation. - High Strength:
Specialized stainless steels possess superior mechanical properties.They maintain strength under extreme pressure and heat.This prevents catastrophic failures in the pipeline. - Cost-Effectiveness:
Although initial cost is high,the long lifespan saves money.Reduced maintenance and replacement frequency lowers operational expenses.Stainless steel offers excellent long-term value.
Essential Oilfield Supply and Uses
Stainless Steel Pipe
Pipe serves as the primary conduit for fluid transport.It must be strong and corrosion-resistant.Duplex and Super Duplex grades are often used for risers and flow lines.These alloys handle the corrosive fluids efficiently.Pipe integrity ensures safe transport from the wellhead to the refinery.
Stainless Steel Pipe Fittings
Valves
Valves control and stop fluid flow within the system.They are essential for safety and process management.Ball valves,gate valves and check valves are standard components.The valve body material must match the severity of the pipe material.This ensures consistent corrosion resistance across the entire line.
What We Do
- Plate
- Sheet
- Forgings
- Round Bar
- Flange
- Pipes
- Fittings
- Customized
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Grades and Standards for Severe Oilfield Supply
- Grade Selection:
Duplex stainless steel pipe fittings (like 2205) are common.Super Duplex (like 2507) is required for the most severe chloride environments.These grades offer high PREN values. - Pipe and Fitting Standards:
Pipes must adhere to specifications like ASTM A312.Buttweld fittings follow ASTM A403 and ASME B16.9.These standards certify the material quality and dimensions. - Pressure Range:
High-pressure service requires high-class ratings.Flanges often follow ASME B16.5, with classes ranging up to 2500. Correct pressure ratings are non-negotiable for system safety.
| Alloy Grade | Key Feature | Primary Threat | Primary Component |
|---|---|---|---|
| Duplex 2205 | High strength, cost-effective | Chloride Pitting | Production Lines |
| Super Duplex 2507 | Superior corrosion resistance | Stress Corrosion Cracking | Subsea Systems |
| Inconel 625 | Excellent high-temperature resistance | High-Pressure/High-Temp (HPHT) | Downhole Tubing |
| Component | Standard | Typical Size Range (NPS) | Pressure Class (ASME) |
|---|---|---|---|
| Pipe | ASTM A312 | 1/2” to 24” | Sch 40 to Sch 160 |
| Buttweld Fittings | ASME B16.9 | 1/2” to 48” | Sch 40 to Sch 160 |
| Flanges | ASME B16.5 | 1/2” to 24” | Class 150 to 2500 |
Oilfield Supply Connections And Fluid Transfer
- Hoses and Couplings:
Flexible hoses are necessary for blending or refueling operations.These require quick-connect solutions. - Camlock Fittings:
Hoses use stainless steel camlock fittings for fast disconnection.The stainless steel resists external contamination. - Clamping:
Hoses must be secured tightly to fittings.Stainless steel clamps provide the necessary compression.They ensure the hose does not slip or fail under pressure.
Contact Us
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
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