Cold Drawn Shock Absorber Tube with High Dimensional Accuracy for Automotive Applications
Price:
800-1000 USD/Ton
MOQ:
1Ton
Delivery Time:
20-30days upon products
Brand:
TORICH
Product Description
Shock Absorber Tube Carbon Steel Cold Drawn Bright Precision Welded Tube For Automotive
Material
This carbon steel cold-drawn, bright, precision-welded tube is specifically designed for automotive applications, particularly for use as shock absorber cylinders and related structural/hydraulic components. The manufacturing process involves forming a welded pre-tube shell followed by precise cold drawing to achieve tight tolerances, excellent surface finish, and superior dimensional control.
Specification
- Process: Welded shell with cold draw finish
- Outer Diameter (OD): Customizable from 10 mm to 400 mm
- Wall Thickness (WT): 1 mm to 35 mm or more
- Length: Up to 12,000 mm or per customer requirements
- Surface: Bright cold-drawn finish with polished straightness
- Tolerance: Tight dimensional control per precision tube standards
Key Features
- High dimensional accuracy
- Smooth bright surface finish
- Improved mechanical properties
- Good weldability and cost-effectiveness
- Automotive-specific performance
Our Advantages
- Strict control of straightness and concentricity
- Tight tolerances on outer diameter and wall thickness
- Optimized mechanical properties through cold-drawing
- Material traceability and comprehensive inspection
- Flexibility in engineering and customization
- Specialization in automotive supply chain requirements
Chemical Composition
| Steel Grade | C (max %) | Si (max %) | Mn (max %) | P (max %) | S (max %) |
|---|---|---|---|---|---|
| E155 | 0.11 | 0.35 | 0.70 | 0.025 | 0.025 |
| E195 | 0.15 | 0.35 | 0.70 | 0.025 | 0.025 |
| E235 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E275 | 0.21 | 0.35 | 1.40 | 0.025 | 0.025 |
| E355 | 0.22 | 0.35 | 1.60 | 0.025 | 0.025 |
Mechanical Properties
| Steel Grade | Condition | Tensile Strength Rm (MPa) | Yield Strength ReH (MPa) | Elongation A (%) |
|---|---|---|---|---|
| E155 | +C | 400 | -- | 6 |
| E195 | +C | 420 | -- | 6 |
| E235 | +C | 490 | -- | 6 |
| E275 | +C | 560 | -- | 5 |
| E355 | +C | 640 | -- | 4 |
| E355 | +SR | 590 | 435 | 10 |
| E355 | +N | 490-630 | 355 | 22 |
Standards Executed
- GB/T 24187-2023 (Chinese standard for cold-drawn precision welded steel tubes)
- EN 10305-2 (European standard for welded cold drawn tubes)
- JIS G3445 (Japanese standard for machine structural carbon steel tubes)
- DIN 2393/2394 (German standards for cold drawn precision tubes)
Application Areas
This precision tube product is designed for automotive and hydraulic systems, particularly for shock absorbers, hydraulic cylinders, and structural tubular components where precision, strength, and surface quality are critical.
Specific Use Cases
- Inner or outer cylinder for vehicle shock absorbers
- Hydraulic piston or rod tubes for automotive systems
- Structural components in suspension or steering systems
- Telescopic cylinder assemblies for commercial vehicles
Frequently Asked Questions
Are you a trading company or manufacturer?
We are a manufacturer that can also handle trading operations.
How long is your delivery time?
For goods in stock: 10-15 days. For goods not in stock: 30-40 days (depending on quantity).
Do you provide samples? Is it free or extra?
Yes, we provide samples free of charge, but customers must pay for freight costs.
What are your payment terms?
Payment ≤ $2,000 USD: 100% in advance. Payment ≥ $2,000 USD: 30% T/T in advance, balance before shipment.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
TORICH INTERNATIONAL LIMITED
Location
Suite 1604-3, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact Person
Richard SHEN