📦 Product Description
Seamless steel pipe is made of the whole round steel, and the steel pipe with no weld on the surface is called seamless steel pipe. According to different production methods and purposes, there are thick wall seamless steel pipes and thin wall seamless steel pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation. Seamless steel pipes can also be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes and extruded seamless steel pipes.
| Tolerances |
|---|
| Pipe types | Pipe sizes(mm) | Tolerances |
|---|
| Hot rolled | OD < 50 | ±0.50mm |
| OD ≥ 50 | ±1% |
| WT < 4 | ±12.5% |
| WT 4 ~ 20 | +15%, -12.5% |
| WT > 20 | ±12.5% |
| Cold drawn | OD 6 ~ 10 | ±0.20mm |
| OD 10 ~ 30 | ±0.40mm |
| OD 30 ~ 50 | ±0.45mm |
| OD > 50 | ±1% |
| WT ≤ 1 | ±0.15mm |
| WT 1 ~ 3 | +15%, -10% |
| WT > 3 | +12.5%, -10% |
🔬 Chemical Composition (%)
| Material | Component | C | Si | Mn | P | S | Cr | Ni | Cu |
| 1020 | min | 0.17 | 0.17 | 0.35 | - | - | - | - | - |
| max | 0.23 | 0.37 | 0.65 | 0.035 | 0.035 | 0.25 | 0.3 | 0.25 |
| 1025 | min | 0.22 | 0.17 | 0.5 | - | - | - | - | - |
| max | 0.29 | 0.37 | 0.8 | 0.035 | 0.035 | 0.25 | 0.3 | 0.25 |
| 1045 | min | 0.42 | 0.17 | 0.5 | - | - | - | - | - |
| max | 0.5 | 0.37 | 0.8 | 0.035 | 0.035 | 0.25 | 0.3 | 0.25 |
❓ FAQ
1 How can we guarantee quality?
We always provide a pre-production sample before mass production and conduct a final inspection before every shipment to ensure the highest standards.
2 What products can you buy from us?
You can source Copper, Aluminum, Mould steel, Seamless carbon steel, Precision steel pipe, Steel plates, Alloy steel, Titanium, and custom machine parts.
3 Which ports are accepted for delivery?
Products can be delivered from major ports including Qingdao, Tianjin, Shanghai, Guangzhou, and others based on your requirements.
4 What services and delivery terms do you provide?
We accept various delivery terms including FOB, CFR, CIF, and EXW. Payments can be made via T/T, L/C, D/P, D/A, or PayPal in multiple currencies such as USD, EUR, JPY, and CNY.
5 Can we get samples and is there a charge?
Yes, samples from our stock are available. While the samples themselves are free, customers are responsible for the freight costs.
6 How can we get a price quote?
To provide an accurate quote, we need the Product Name, Standard, Material Grade (Chemical Composition), Dimensions, and Quantity.
Flowtera Pipe
