TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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Precision Steel Pipe Cold Drawn E355 E235 EN10305-1 Hydraulic Seamless Tubes
1. Basic Info of EN10305-1 precision steel pipe :
EN10305-1 standard for cold drawn hydraulic seamless steel tube.
Application:honed steel tubes , oil cylinder, motorcycle, auto industry,etc.
Technique: Cold Drawn
Material: E235,E355,E215, or other equivalent material.
OD: 5-420 mm
WT: 0.5-50 mm
Length: Max 13000mm
Packaging: Anti rust, woven bags with two slings
2.Chemical components:
| Steel Tube | C | Si | Mn | P | S | Al |
| E215 | 0.1 | 0.05 | 0.7 | 0.025 | 0.025 | 0.025 |
| E235 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 | - |
| E355 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 | - |
| Cylinder Steel Tube | |||||
| Standard | Material | Delivery | Surface | Sizes | |
| DIN | 2391/1630/2445 | ST37.4 ST52.4 | NBK | 1) BA 2) Black phosphating 3) Galvanizing | OD 2 -60mm × WT0.3 -10mm |
| EN | 10305-4 | E235 E355 | (+)N | ||
| BS | 3602 | CFS 360 | Zinc Layer thickness more than 8um | ||
| Other steel grades also available upon request | |||||
3. Main feature of precision cold drawn steel tube:
| High precision | Excellent brightness |
| No oxidization on outer and inner walls after heat treatment | High cleanness of inside wall |
| High pressure | No deformation after clod bending |
| No crack after flaring and flattening | Color : Gray with white |
4.Delivery condition:
| BK (+C) Cold finished/hard (cold finished as drawn) | No heat treatment after the last cold forming process. |
| BKW (+LC) Cold finished/soft (lightly cold worked) | After the last heat treatment there is a light finishing pass (cold drawing).
|
| BKS (+SR) Cold finished/stress relieve annealed. | After the final cold forming process the tubes are stress relieve annealed. |
| GBK (+A) Annealed | After the final cold forming process the tubes are annealed in a controlled atmosphere |
| NBK (+N) Normalized. (Mainly focus on) | After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere |
5.Product show of EN10305-1 seamless steel tube:
7.Packing:
8.FAQ
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
If you have another question, pls feel free to contact us