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Quick Details
Specifications
EN10305-1 E235 ISO Precision Steel Pipe for Machinery Use , Thick Wall Steel Tubing
Quick Detail:
Standard: EN10305-1, EN10305-4, BS 6323
Grade: E215 / E235 /
E355
Size:(mm)
Out Dimensions: 6 mm ~ 350
mm
Wall Thickness: 0.8 mm ~30mm
Length: Fixed(6m,9m,12,24m) or normal
length(5-12m)
Description:
Precision steel
tube
Precision in size,Bright for the surface, high ability
of mechanical performance
Standard: EN10305-1, EN10305-4, BS 6323, ISO 8535
STEEL GRADE: E215 / E235 / E355
APPLICATIONS:
Automobile, engineering vehicles, diesel, chemical engineering machinery, refrigerating equipments for electric appliance and electric heating system.
Tests we apply to the tubes:
1) Chemical Composition Analysis
2) Mechanical Properties (Tensile strength, Yield strength,, Elongation, Hardness)
3) Technological Test (Flattening test, Flaring Test, Bending Test, Hydraulic pressure test)
4) Surface quality detection
5) Eddy-current examination
6) Visual test
Mill test certificates will be issued according to EN10204/3.1B
Chemical Composition:
Chemical composition(cast analysis): | |||||||
Steel grade | % by mass | ||||||
Steel name | Steel number | C | Si | Mn | P | Sb | AI |
max. | max. | max. | max. | max. | min. | ||
E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
E355C | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - |
Mechanical properties at room temperature:
Mechanical properties at room temperature | |||||||||||||
Steel grade | Minimum values for the delivery conditiona,b | ||||||||||||
Steel name | Steel number | ﹢CC | ﹢LCC | ﹢SR | ﹢Ad | ﹢N | |||||||
Rm | A | Rm | A | Rm | ReH | A | Rm | A | Rm | ReH | A | ||
MPa | % | MPa | % | MPa | MPa | % | MPa | % | MPa | MPa | % | ||
E215 | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 430 | 215 | 30 |
E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340 to 480 | 235 | 25 |
E355 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450f | 10 | 450 | 22 | 490 to 630 | 355 | 22 |
Final supply conditions:
Designation | Symbol | Description |
Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |