StandardGrade | Mechanical properties | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
DIN17175 | St 35.8 | 360-480 | ≥235 | ≥25 |
St 45.8 | 410-530 | ≥255 | ≥21 |
15Mo3 | 450-600 | ≥270 | ≥22 |
13CrMo44 | 440-580 | ≥290 | ≥22 |
10CrMo910 | 450-600 | ≥280 | ≥20 |
Size: 19mm-350mm
W.T.: 1.5mm-50mm
Shape: Round
Production Type: Cold drawn or Hot rolled
Length: Single random length/ Double random length or as customer's actual request max length is 10m
Grade: ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910
Testing
- Tensile test
- Notch impact/bending test
- Ring test
- Non-destructive test
- Visual inspection of tube surface
- Gauging
- Leakage test
- Grade identification test
- Hot tensile test
Marking
- the manufacturer's name or trade mark;
- the specified dimensions;
- the number of this European Standard;
- the steel name or number;
- the cast number;
- the delivery condition;
- Others information by customer's
Note:
- Mill test certificates will be issued according to EN10204.3
- The tubes Shall be Seamless cold drawn or hot rolled.
Protection and Packing:
- Packed in wooden box or bundles protected with plastic paper, and suitably protected for sea-worthily delivery or as requested.
- The tubes shall be delivered with a temporary corrosion protection. The type of protection shall be at the discretion of the manufacturer
Application:
For high middle, low pressure boiler and pressure purpose
Surface treatment:
Antirust oil-dip, Varnish, Passivation, Phosphating, Shot Blasting




