DIN 2391 ST45 cold-drawn high-precision seamless tubes are medium carbon steel tubes with an elemental composition of 0.24% carbon, 0.10-0.35% silicon, 0.40-0.80% manganese, 0.025% phosphorus max, 0.025% sulphur max, and the rest iron. DIN 2391 ST45 carbon steel tubes can be stimulated by induction hardening, whereby the end product can ultimately increase its hardness properties to a level of approximately HRC 55.
Due to its good machinability and tight dimensional tolerances along with high strength and excellent corrosion resistance, DIN 2391 ST45 Seamless Tubes are widely used in automotive parts manufacturing, industrial machinery parts manufacturing, power generation equipment manufacturing, oil refineries, construction engineering, heat exchangers and other precision applications.
Carbon Steel DIN 2391 ST45 Tubing material specification chart
| Standard |
DIN 2391 |
| Grade |
ST45 |
| Size |
OD (4-190mm) x WT (0.5-15mm) |
| Outer Dimensions |
4.0mm – 60.0mm |
| Wall Thickness |
0.5mm – 8 mm |
| Length |
max 6000mm |
Comparing Standards Specification Of DIN 2391 ST45 Carbon Steel Seamless Pipes
| Grade |
ST45 |
| Standard |
DIN 2391 |
| Outer Dimensions |
4.0mm – 60.0mm |
| Length |
max 6000mm |
| Size |
OD (4-190mm) x WT (0.5-15mm) |
| Wall Thickness |
0.5mm – 8 mm |
Chemical Equation Of DIN 2391 ST45 High Precision Seamless Tube
| Standard |
Grade |
C |
Si |
Mn |
P max |
S max |
| DIN2391 |
St45 |
≤0.21 |
≤0.35 |
≥0.4 |
0.025 |
0.025 |
DIN 2391 ST45 Cold Drawn Carbon Seamless Steel Pipe
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DIN2391 ST45 Seamless Precision Tubes steel Images
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