SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
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Hollow Carbon Steel Tubing , Construction Galvanized Steel Pipe STK500
The stk500 is one of structural steel pipes and one of the steel materials for civil engineering and construction. Although it is a low-carbon type, since the tensile strength is also minimum and the strength is guaranteed to be 500 mPa or more, a method different from the so-called material pipe can be used.
Application
STK steel pipe is the general structure of carbon steel pipe, but also as a structural carbon steel pipe. Applications are used in addition to buildings. However, the main purpose envisaged is the provision of strength with respect to pillars and feet, landslide suppression columns, foundation pillars, towers and other buildings. Welded steel pipes with an outside diameter of 318.5 mm for base rods. In the case of landslide suppression, the joints of the same size have no pipe or welded pipe.
Chemical composition(%)
| Grade | C | Si | Mn | P | S |
| STK500 | 0.24 max | 0.35 max | 0.30-1.30 | 0.040 max | 0.040 max |
Mechanical properties
| Grade | Yield strength N/mm2 | Tensile strength N/mm2 |
| STK500 | 355 min | 500 min |
Surface Treatment
| Surface Treatment | 1) Bared | |
| 2) Color Painted (Black / Red / Varnish coating) | ||
| 3) Galvanized | ||
| 4) Oiled | ||
| 5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating. | ||
What we can offer?
-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Quality Assurance
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET
Package
In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or upon request
Payment & Delivery
1. Both T/T and L/C will be acceptable
2. Trade Terms: FOB, CIF, CFR
3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties
4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples
Shanghai Unite Steel Trading Co., Ltd
We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.