DIN2391 St52 Seamless Carbon Steel High precision Tube
ST52 Seamless Pipe and EN 1.0570 Precision Steel Tube supplier in China
ST52 pipes come under the DIN 2391 specification. The DIN 2391 St52 Pipe is made with a chemical composition of carbon, silicon, manganese, phosphorous, and sulfur. These pipes are very strong and designed with enhanced corrosion resistance properties. DIN 2391 ST52 possesses excellent mechanical properties. They are designed with a tensile strength of minimum 600Mpa and yield strength of minimum 520Mpa. The ST52 Steel Tube can be easily elongated by a minimum of 14% and still possess good workability. They are available in single random, double random, and custom lengths up to 6000mm. ST52 Carbon Steel Pipe is produced with a carbon concentration of above 0.30%. These pipes can be easily formed by both cold and hot-rolling processes in different dimensions. The ST52 Pipe is widely used in oil and gas refineries, food processing, chemical industries, boiler systems, dairy and fluid pipelines, hydraulic systems, and so on.
DIN 2391 St52 Pipe Specification
| Standard |
DIN 2391 |
| Grade |
ST52 |
| Size |
Outer Diameter (4-190mm) x Wall thickness (0.5-15mm) |
| Outer Dimensions |
4.0mm To 60.0mm |
| Wall Thickness |
0.5mm To 8 mm |
| Length |
maximum 6000mm |
| ST 52 Pipe Standard |
DIN2391 |
| Grade |
St35/St45/St52/ St55 and so on |
| Minimum Order Quantity |
1 Ton |
| Outside Diameter Ranges |
1/8''~48'' Or DN6~DN1200 Or 10.3mm~1219mm |
| ST 52 Pipe Wall Thickness Ranges |
SCH10~SCH160 Or STD,XS,XXS Or 1.73mm~59.54mm |
| ST 52 Pipe Length (Custom) |
Single Random Length |
16ft-22ft/4.8m-6.7m |
| Double Random Length |
22ft-35ft/6.7m-10.7m |
| Fixed Length |
16ft-41ft/4.8m-12.5m |
| Most common Length |
6m, 12m |
| I.D Roughness |
0.4-0.8 |
| Inside Diameter Tolerance |
H7-H10 |
| ST 52 Pipe Type |
Seamless, Welded |
| ST 52 Pipe Technique |
Cold Drawn, ERW and so on |
ST52 Seamless Pipe Chemical Composition Chart
| Standard |
Grade |
C |
Si |
Mn |
P max |
S max |
| DIN2391 |
St52 |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
Tolerance of ST52 Honed Cylinder Tube
ST52 Honed Tube and ST52 Honed Cylinder Tube
| Outer Diameter Tolerance in MM |
4-30 |
31-40 |
41-50 |
51-60 |
61-70 |
71-80 |
81-90 |
91-100 |
| ±0.08 |
±0.15 |
±0.20 |
±0.25 |
±0.30 |
±0.30 |
±0.40 |
±0.45 |
| Wall thickness Tolerance |
±10% |
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