High Strength Bright Annealed Tube Seamless DIN2391 For Pneumatic Parts
DIN2391 Seamless Precision Bright Annealed Tubes For Hydraulic And Pneumatic Parts
Description
Benefits of Round Cold drawn Seamless Mechanical Tubing:
- Smooth surface
- Dimensional accuracy and excellent micro-structure uniformity
- Enhanced machinability
- High strength to weight ratio
- Tight tolerances, resulting in reduced machine time
- Cross-sectional shape: Round, oval, square, hexagon, octagon, plum blossom, etc
- Applications: hydraulic cylinders, rollers, structural apps, truck and automotive parts
Standard: ASTM A519 DIN 2391 EN 10305
Grade: ASTM 1010/1018/1020/1026/1030/1035/1045/4130/4135/4140/5120/5140/52100/8620/4340
DIN ST30AL/ST35/ST45/ST52/CK22/CK35/CK45/41Cr4/25CrMo4/30CrMo4/34CrMo4/42CrMo4/16MnCr5 ETC.
EN E215/E235/E355 etc
Size: Outer diameter: 6-426 mm
Wall thickness: 0.5-40 mm
Length: not more than 12000 mm
Application
High Precision Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.
Process: Cold Drawn, Cold Rolled, honin, skiving, Hot rolled+Cold Drawn.
Standard: DIN2391. EN10305-1. GB3639. ASTM A519, EN 10297 etc.
Chemical requirements:
| Steel Grade(%) | C | Si | Mn | P | S |
| E235(1.0308) | ≤0.17 | ≤0.35 | ≤1.20 | ≤0.025 | ≤0.025 |
Dimention
Outer Diameter: 30-450 mm
Wall Thickness: 2-40 mm
Length Random Length, Fixed Length, etc.
Dimension tolerance
| I.D tolerance (mm) | O.D tolerance (mm) | I.D Roughness (µm) | Straightness (mm/meter) |
| H7-H9 | -/+0.5% | 0.10-0.80 | 0.2-0.80 |
Delivery Condition: Cold drawn, Cold rolled, Stress Relieved, Annealed( Bright Annealed, Spheroidize Annealed), Normalized, Quenched and Tempered.
Surface: Black, Smooth, Bright.
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