Seamless Precision Tube with ±0.03mm OD/ID Tolerance - Cold Drawing Manufacturing Process
Price:
Negotiable
MOQ:
2T
Delivery Time:
30days
Brand:
SunShine
Product Description
Precision Tolerance Specifications
Our seamless precision tubes undergo strict rolling process controls to minimize inner and outer diameter tolerances:
- Outer Diameter (OD) Tolerance: ±0.03mm
- Inner Diameter (ID) Tolerance: ±0.03mm
- Custom tolerance requirements and material grades available upon request
Delivery Condition Standards
| Condition | Symbol | Explanation |
|---|---|---|
| Cold-finished/hard (cold-finished as-drawn) | BK(+C) | No heat treatment after the last cold-forming process. The tubes have low deformability. |
| Cold-finished/soft (lightly cold-worked) | BKW(+LC) | Light finishing pass after last heat treatment. Suitable for cold-forming within certain limits. |
| Annealed | GBK(+A) | Tubes annealed in controlled atmosphere or vacuum after final cold-forming process. |
| Normalized | NBK(+N) | Tubes annealed above upper transformation point in controlled atmosphere or vacuum. |
Frequently Asked Questions
What product information must I provide before making a purchase?
Please provide grade, width, thickness, surface treatment requirements, and required quantities.
What shipping ports are available?
We ship from Shanghai, Tianjin, Qingdao, and Ningbo ports.
Do you offer samples?
Yes, we provide free samples with express shipping worldwide.
Do you offer customized product services?
Yes, we can manufacture according to your specifications and technical drawings.
Can I visit your factory?
Customers worldwide are welcome to visit our manufacturing facility.
Do you assist with first-time steel product imports?
Yes, our shipping agents will coordinate shipment arrangements with you.
Is there a minimum order quantity (MOQ)?
No MOQ limit, though container transport is recommended for lower freight costs.
Can you print my logo on products or packaging?
Yes, please inform us before production and confirm the design based on our sample.
How are products packaged?
In bundles or wooden boxes according to your specific requirements.
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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
CHANGZHOU ZHONGXIN PRECISION STEEL TUBE CO.,LTD
Location
No.80 Hongrun Road Hongqiao Town Taixing City Jiangsu Province
Contact Person
Ma