Products Description
Our Advantages
1. Application adaptability
- In power engineering, safety performance protection is important. PVC coating can completely isolate current conduction, prevent stray current corrosion, and ensure the safety of power and communication scenarios.
- In the chemical industry, the coating seamlessly covers the welds to eliminate the risk of corrosion and liquid leakage. And PVC coating can reduce the corrosion rate of stainless steel substrates and resist highly corrosive media in chemical production.
- When used as a heat exchanger, the coil structure increases the tube length in a limited space, which increases the heat exchange area by more than 30% compared to the straight tube, significantly improving the heat exchange efficiency.
2. Packaging and Shipping
- We offer a variety of packaging options, including plastic caps, plastic film, woven bags, and wooden crates, to prevent damage or contamination during transport. We also offer moisture-proof and rust-proof packaging, ensuring each box is clearly labeled and has a traceability code.
- We offer a variety of shipping methods, including sea, air, and land transportation. Free samples are also available.
3.Surface Quality and Treatment
- The inner stainless steel tube undergoes pickling, polishing, electropolishing, and passivation to ensure a smooth inner surface free of contaminant buildup.
- The outer PVC layer is available in clear, black, green, red, or a custom color.
Applications Areas
PVC coated stainless steel pipes are widely used in environments that require corrosion protection and external surface insulation, including:
- Automotive industry: fuel lines, brake lines, exhaust systems
- Chemical and pharmaceutical plants: fluid transportation, processing pipelines
- Food and beverage industry: sanitary pipes with outer protective layer
- Petrochemical: oil and gas pipelines and heat exchangers
- Electrical conduit systems: precision instruments and equipment
- Ship and marine engineering: seawater cooling pipelines
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Ti |
|---|---|---|---|---|---|---|---|---|---|
| TP304 | ≤0.08 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–11.0 | - | - |
| TP304L | ≤0.035 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–12.0 | - | - |
| TP316 | ≤0.08 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | - |
| TP317 | ≤0.08 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 18.0–20.0 | 11.0–15.0 | 3.0–4.0 | - |
| TP321 | ≤0.08 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 17.0–19.0 | 9.0–12.0 | - | ≥5×C |
Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB max) |
|---|---|---|---|---|
| TP304 | ≥515 | ≥205 | ≥35 | ≤192 |
| TP304L | ≥485 | ≥170 | ≥35 | ≤192 |
| TP316 | ≥515 | ≥205 | ≥30 | ≤217 |
| TP317 | ≥515 | ≥205 | ≥30 | ≤217 |
| TP321 | ≥515 | ≥205 | ≥30 | ≤217 |
Possible Alternative Grades
| Grade | Possible Alternatives | Notes |
|---|---|---|
| TP304 | TP430 (if lower corrosion needed), TP301 | For cost-saving or forming flexibility |
| TP304L | TP304, TP316L | TP304 for non-welded; TP316L for better corrosion |
| TP316 | TP316L, TP317 | TP317 offers higher Mo content for harsh settings |
| TP317 | TP317L, Duplex 2205 | For aggressive chloride exposure |
| TP321 | TP347, TP304L (if no high-temp) | TP347 has Nb stabilization, TP304L is cheaper |
Products Show
Testing Equipment
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Factory Equipment
Pickling equipment
Polishing equipment
Cold drawing equipment
Products Application
Products Package
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