GOST 8734-75 Seamless Cold Formed Steel Pipe
Seamless cold formed steel pipe to GOST 8734-75 in grades 10, 20 and 09G2S. Cold drawing gives a tighter wall tolerance and a smoother surface than hot rolled pipe, so the tube can go straight into machining or pressure lines. Common sizes are kept in stock for repeat orders from Russia and CIS customers.
Price: quoted per specification. Steel prices move with the raw material market, so every quotation is confirmed at the time of order.
Specifications
- Standard: GOST 8734-75
- Steel grade: 10, 20, 09G2S, other grades on agreement
- Size range: OD 6-80 mm, wall 0.7-8 mm
- Delivery condition: +N, +A
- Production method: Cold drawn process with heat treatment
Steel grades
| Grade | GOST | Equivalent | Typical use |
| 10 | GOST 1050 | St35 / E235 | hydraulic lines, machined parts |
| 20 | GOST 1050 | St45 / E255 | pressure lines, cylinders |
| 09G2S | GOST 19281 | St52 / E355 (approx.) | low temperature to -40 °C, oil and gas |
All three grades are confirmed by an EN 10204 3.1 certificate; Russian-language documents are available.
Sizes we supply
Common sizes for GOST 8734-75, cold drawn, increased precision available. Other diameters and walls are drawn to your size list – the full standard data (chemistry, conditions, tolerances, tests) is on the GOST 8734-75 standard page.
| OD × wall (mm) | Wall range (mm) | Typical use |
|---|---|---|
| 10 | 1.0 | Hydraulic and air lines |
| 14 | 1.0 | Fuel and lubrication lines |
| 16 | 1.5 | Small cylinders, bushes |
| 20 | 2.0 | Hydraulic lines, sleeves |
| 22 | 2.0 | Suspension parts |
| 25 | 3.0 | Cylinder shells |
| 32 | 3.0 | Machined housings |
| 38 | 4.0 | Pressure lines, 09G2S low temperature |
Steel grade: 10, 20, 09G2S | Delivery: Heat treated, group В on request
Typical applications
- Machined parts
- Pressure and hydraulic lines
- Mechanical tubing
- Repair and maintenance stock
Quality and packing: tubes are protected with anti-rust oil and packed seaworthy, in wooden cases where agreed. Each lot is tested for chemical composition, yield and tensile strength, flattening, elongation and dimensions, with visual inspection and NDT available on request.
Request a quotation: send your size list or drawing through our contact page. We reply within one working day.