GB/T3639 Cold Drawn Precision Seamless Steel Tube Cold Rolled Pipe 10# 20#
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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.