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EN10305 GB/T 3639 Cold Drawn or Cold Rolled Welded Precision Hydrualic Tube

Basic Information
Place of Origin: China
Brand Name: Torich
Certification: ISO
Model Number: GB/T 3639 EN10305
Minimum Order Quantity: 2 tons
Price: Negotiable
Packaging Details: Packed in wooden boxes or seaworthy packing.
Delivery Time: 25-45 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 6000 Ton/Tons per Year
Detail Information
Product Name: EN10305 GB/T 3639 Cold Drawn Or Cold Rolled Welded Precision Hydrualic Tube Keyword: Welded Precision Steel Pipes
Standard: GB/T 3639 EN10305 Grade: 10#, 20#, 45#, Q345, E255, E355,etc.
Technical: Cold Drawn OR Cold Rolled Brand: TORICH
Application: Hydraulic Pipe Length: As Customer's Require
High Light:

precision steel pipe

,

precision seamless pipe


Product Description

EN10305 GB/T 3639 Cold Drawn or Cold Rolled Welded Precision Hydrualic Tube

 

Product name: EN10305 GB/T 3639 Cold Drawnor Cold Rolled Welded Precision Hydrualic Tube
Standard: DIN2391-2, EN10305-1, GB/T3639, GB/T8163, GB/T14976, EN10216-5...
Grade: 10#, 20#, 45#, Q345, E255, E355,etc.
Technical: Cold Drawn or Cold Rolled
Size Range:

OD: 4-200 mm

WT: 0.5-22 mm

Or according to customers' actual application and production.

Application: Structural, Machinery,etc.
Inspection items: Chemical composition test, Tensile test, Flattening test, Flaring test, Compactness test , Surface roughness check

 

1.Chemical composition:

Steel Grade C Si Mn P S Al
Steel Name Steel Number max max max max max min
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025 -
E355 1.0580 0.22 0.55 1.60 0.025 0.025 -

 

2.Delivery Conditions

The tubes shall be manufactured from hot finished seamless tubes by cold drawing or other suitable processes.

The tubes shall be supplied in one of the delivery conditions as follows:

Designation Symbol Description
Cold drawn/hard +C No heat treatment after the final cold drawing process.
Cold drawn/soft +LC After the final heat treatment there is a suitable drawing pass.
Cold drawn and stress relieved +SR After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere.
Annealed +A After the final cold drawing process the tubes are annealed in a controlled atmosphere.
Normalized +N After the final cold drawing operation, the tubes are normalized in a controlled atmosphere.

 

3. Our products are widely used in:
Engineering machinery Machine tool industry Hydraulic industry Special vehicle
Automobile pipeline Heavy machinery Compressor Shipbuilding industry
Railway locomotive Diesel engine Utility boiler Injection molding machine
Power equipment Heavy duty automobile Forging and stamping machine

 

4. Main Characteristics:
No Oxidation Layer on the Outer and Inner Walls, No Crack under Flaring and Flattening
No Leakage under High Pressure,No Distortion after Cold Bending, High Precision High Cleanness Excellent Brightness

 

Product Display of Precision Steel Tube

Precision Hydrualic Tube Precision Steel Tube

 

Manufacturing Process

EN10305 GB/T 3639 Cold Drawn or Cold Rolled Welded Precision Hydrualic Tube 2

 

Packing and Delivery

DIN2391 GB/T 3639 Cold-drawn or Cold-rolled Seamless Precision Steel Tube 5DIN2391 GB/T 3639 Cold-drawn or Cold-rolled Seamless Precision Steel Tube 6

 

Quality Control

1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.

quality control
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

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, 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 need 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

Contact Details
Claire ZHU

Phone Number : +8618957803066

WhatsApp : +8613736164628