En10305 St35 / E35 Precision Seamless Steel Tube For Hydraulic , Air - Power Cylinder
Description:
- Product Item No.: 001Precision-Cosco Steel
Standard: EN 10305-1 / DIN 2391
Material: ST35/E35, ST45, ST52/E355
OD: 10mm~219.1mm
Wall Thickness: 2mm~35mm
Application: Precision mechanical part for car and cylinder
Delivery condition: NBK (The last cold forming process is followed by annealing above the upper transformation point in a controlled astmosphere. ).
Package: In hexagonal shape bundles wrapped with strong steel trip 2MT/Bundle.
Quality Control:
Our quality control department consists of experienced technicians. These personnel strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers.
Chemical composition | ||||||||||||||||
Item | Grade | Chemical composition.% | ||||||||||||||
C max | Si max | Mn | Pmax | S max | ||||||||||||
St35/E35 | 1.0308 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 | ||||||||||
St45 | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 | ||||||||||
St52/E355 | 1.0508 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 | ||||||||||
The following alloying may be added:Nb≤0.03%,Ti≤0.03%,V≤0.05%,Nb+TI+v≤0.05% | ||||||||||||||||
Mechanical properties | ||||||||||||||||
Category | Delivery state minimum value | |||||||||||||||
item | grade | Gold finished (hard)(BK) | Gold finished (SOFT)(BKW) | Gold finished and stress-relieved(BKS) | annealed | normalized(NBK) | ||||||||||
Rm Mpa | A% | Rm Mpa | A% | Rm Mpa | ReH Mpa | A% | Rm Mpa | A% | Rm Mpa | ReH | A% | |||||
1 | St35/E235 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340~470 | 235 | 25 | |||
2 | St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440~570 | 255 | 21 | |||
3 | St52/E355 | 640 | 4 | 580 | 7 | 580 | 450f | 10 | 450 | 22 | 490~630 | 355 | 22 | |||
Specifications
Designation A179/A179M-90a
Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-exchnager
And Condenser Tubes
This specification covers | 1.1 Minimum-wall-thickness,seamless cold-drawn low-carbon steel tubes for tubular heat | |||||||||
Ordering information |
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Chemical Composition | A179
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Inspection item |
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Tensile requirements |
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Our advantage
We owned special equipment for manufacturing various high precision products
- High-precision cold drawing unit
- Bright annealing oven
- Straighter
- 100% UT inspection if buyer requested
- 100% ET inspection if buyer requested
