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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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GB/T 24187 Cold-drawn precision single welded steel tubes
Application:It is suitable for cold drawn precision single-layer welded steel
pipes used in the production of condensers, evaporators, fuel
pipes, lubricating oil pipes, electric heat pipes, cooler pipes,
and general pipes in refrigeration, automotive, electric heating
and other industries.
Size:L--1.4-4000m
WT--0.3-1.3mm
OD--3.18-18mm
Plating method for outside plating of steel pipe:Electroplating,
electroless plating, hot dipping
The type, state and code of the steel tube surface
| Type | State | Code |
| Bright Surface | No coating on the inner and outer surface of steel pipe | SL |
| Copper plated surface | Copper plating on the outer surface of steel tube | Cu |
| Galvanized surface | Galvanized or zinc alloy on the outer surface of steel pipe | Zn |
| Double-sided copper plating surface | The inner and outer surfaces of the steel pipe are plated with copper | Cu/Cu |
| External galvanized inner copper plating surface | Galvanized or zinc alloy on the outer surface of steel pipe, copper plating on the inner surface | Zn/Cu |
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Inspection Items, Test Methods And Sampling Quantity
| NO | Inspection Items | Sampling Method ,Test Methods | Sampling Quantity |
| 1 | Chemical composition | GB/T 223, GB/T 4336, GB/T 20066 | Take 1 samples per furnace |
| 2 | Mechanical property | GB/T 228 | Take 1 samples per batch |
| 3 | Flattening test | GB/T 246 | Take 1 samples per furnace |
| 4 | Expansion test | GB/T 242 | Take 1 samples of two steel pipes per batch |
| 5 | Bending test | GB/T 244 | Take 1 samples per batch |
| 6 | Hydraulic test | GB/T 241 | Take 1 samples per batch |
| 7 | Flared test | Appendix A | Take 1 samples per batch |
| 8 | Requirements for the inner surface of high definition clean steel pipe | Appendix B | Consultation between Supply and demand parties |
| 9 | Outer coating | Appendix C | Consultation between Supply and demand parties |
| 10 | Residuals of internal surface cleanliness | Appendix D | Consultation between Supply and demand parties |
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.
