DIN1626 St33 Carbon Spiral Pipe
DIN 2440 tubes have good resistance to reducing and pitting acids. These steel tubes are easier to machine and weld than other materials. It should be noted, however, that this grade is generally threaded. They work well in low and medium pressure applications and are therefore commonly used in oil and gas, boiler equipment, heat exchangers, fluid lines, etc.
Chemical Composition for St33 Steel Pipe (Product Analysis Max%)
| Main Chemical Elements Composition of St33 Steel Pipe | ||||||
| Thickness(mm) | C | Si | Mn | P | S | N |
| T≤16 | 0.19 | 0.60 | 1.70 | 0.065 | 0.065 | 0.010 |
| T>16 | 0.21 | |||||
ST33 DIN 2440 Seamless Tubes Mechanical Properties
| Steel Grade | Tensile Strength,N/mm²(min) | Yield Strength,N/mm²(min) | Elongation, % (min) |
| St 33 | 290 - 310 | 185 | 18 |
DIN 2440 ST33 Pipe Specification
| Standard | DIN 2440 |
| Grade | ST33 |
| Outside Diameters | 32-630mm |
| Wall Thickness | 2.5-75mm |
| Length | Any Length |
| Certification | DIN 2440 Grade St 33 Carbon Steel Seamless Tubes are certified with Mill test Certificate in accordance with En 10204 Type 3.1/3.2. |
| Surface Protection | DIN 2440 Grade St 33 Tubes are supplied in varnished condition in order to prevent formation of rust. |
DIN1626 ST33 Spiral Pipe
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