STKM12C STKM 11A Carbon Steel Seamless Pipes For Bicycle
Product Details
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,bicycle carbon steel seamless pipes
Carbon Steel Seamless Pipes Erw Pipes for Bicycle Tubing
1.Quick Details:
| Name | Carbon Steel Seamless Pipes Erw Pipes for Bicycle Tubing |
| Type | Carbon |
| Production | Seamless, welded |
| Application | Automotive industry, bicycle, furniture, etc |
| OD | 5-420mm |
| WT | 0.5-25mm |
| Length | 5.8m for 20GP, 11.8 for 40HQ |
| Production | 35-45 days |
| Surafce | Oiled to prevent rust |
| Heat Treatment | according to requirement |
| Package | Packing in seaworthy package, wovan bags and oiled |
2.Product Details:
(1) Production method:
Seamelss: S
Electric-Resistance-Welded: E
(2)Chemical components:
| Material | C max | Si max | Mn max | P max | S |
| STKM11A | 0.12 | 0.35 | 0.6 | 0.04 | 0.04 |
| STKM12A | 0.2 | 0.35 | 0.6 | 0.04 | 0.04 |
| STKM12C | 0.2 | 0.35 | 0.6 | 0.04 | 0.04 |
| STKM13A | 0.25 | 0.35 | 0.3-0.9 | 0.04 | 0.04 |
| STKM14A | 0.3 | 0.35 | 0.3-1 | 0.04 | 0.04 |
(3)Mechanical properties:
| Material | Tensile Strength (min) | Yield Strength | Elongation |
| STKM11A | 290 | -- | 35/30 |
| STKM12A | 340 | 175 | 35/30 |
| STKM12C | 470 | 355 | 20/15 |
| STKM13A | 370 | 215 | 30/25 |
| STKM14A | 410 | 245 | 25/20 |
(4)Apperance:
According to the practicability, the steel pipe shall be straight, and its two ends shall be perpendicular to the pipe axis. The steel pipe shall not have defects that hinder its use.
The surface can be trimmed by grinding or machining, but the thickness of the trimmed steel pipe must be within the tolerance range. The trimming trace shall be according to the shape of the steel pipe
If there are special requirements for steel pipe surface processing and gold plating, it shall be decided by both parties through negotiation
3.Picture Show:
4.Q&A
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 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.
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
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