GB/T3639 Cold Drawn Precision Seamless Steel Tube Cold Rolled Pipe 10# 20#
Product Details
DIN 2440 Carbon Steel Pipes
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GB/T3639 Cold Drawn Precision Seamless Steel Tube Cold Rolled Pipe 10# 20#
TORICH is a leader of precision cold drawn steel tube with more than 20 years expereince.
1.Brief introduction of cold drawn precision seamless steel tube:
Manufacture: the tubes shall be manufactured from hot finished seamless tubes by cold drawing or other suitable processes.
Delivery Condition: cold drawn (hard) as +C, cold drawn (soft) as +LC, cold drawn and stress relieved as +SR, annealed as +A, normalized as +N.
Inspection & Test: chemistry composition analysis, tensile test, flattening test, flaring test, NDT, surface inspection and dimension check.
Length: 2000mm; 6000mm; 10000mm; 12000mm; and so on.
Further process: cutting, deformation.
OD:5-420mm
WT:0.5-50mm
Chemical components :
| Grade | C % | Si % | Mn % | P % | S % | Cr % | Ni % | Cu % |
| 10# | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | 0.025max | 0.025 max | 0.15max | 0.3 max | 0.25max |
| 20# | 0.17-0.23 | 0.17-0.374 | 0.35-0.65 | 0.025max | 0.025max | 0.25max | 0.3max | 0.25max |
| 35# | 032-0.39 | 0.17-0.37 | 0.5-0.8 | 0.025 max | 0.025max | 0.25max | 0.3max | 0.25max |
| 45# | 0.42-0.5 | 0.17-0.37 | 0.5-0.8 | 0.025max | 0.025max | 0.25max | 0.3max | 0.25max |
2. Cold Drawn Precision Seamless Steel Tube product display:
3.Packing method:
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
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 of carbon seamless steel tube ? 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.
Q:Do you have agent or distributor in our country?
A:We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
Q: How is your production capability?
A: 1. 2000 tons monthly production capacity, 5000 tons monthly trading capability
2. Prompt and Timely shipment
Q:How to get the sample?
A:1. You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2. Sample charges will be refunded when order is placed.
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