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EN10305-1 EN10305-4 Precision Seamless Steel Tubes For Precision Machinery
Standard Statement
Material
Main material: E235,E355,10#,20#,45#,16Mn, ST30Al,ST35, ST37,ST37.4,ST45,ST52,ST52.4,E155,E195,E255, etc
OD: 4-120mm
WT: 0.5-15mm
Standard: EN10305-1, EN10305-4
Advantage of Precision Seamless Steel Tubes
2. High precision can be done in small batch production;
3. Cold drawing finished products with high precision and good surface quality.
4. The transverse area of the steel tube is more complicated;
5. Steel pipe performance is superior, metal is more dense.
Delivery Condition
| Designation | Symbol | Description |
| Cold drawn/ hard | +C | No heat treatment after the final cold drawig process. |
| Cold drawn/ soft | +LC | No heat treatment after the final cold drawig process. |
| Cold draw and stress relieved | +SR | After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere. |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized | +N | After the final cold drawing operation the tubes are normalized in a controlled atmosphere. |
Surface Treatment:
Oil-dip.
