ASTM A179 / ASME SA179 standard covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat-exchangers, condensers, and similar heat transfer apparatus. ASTM A179 / ASME SA179 standard requires that the tubes be heat treated after the final cold drawn pass at a temperature of 1200°F [650°C] or higher.
Scope of the seamless steel pipe we produce:
| Brand Name | Gnee | |||
| Business Type | Manufacture & Sales | |||
| Product Description | Caron & Low Alloy Seamless Steel Pipe | |||
| Advantaged Product Specification | ||||
| English | Chinese | |||
|
Outside Diameter (Inch) |
Wall thickness (Inch) |
Outside Diameter (mm) |
Wall thickness (mm) |
|
| From 1/2 to 5 | From SCH40 to XXS | From 25 to 356 | From4 to 80 | |
| Length | From 2m to 12.5m in accordance with customers' requirements | |||
|
Material & Standard Description |
Chisese | American | German | |
| 10# | ASTM A53-A | St37 DIN1626 | ||
| ASTM A106-A | St37-2 DIN17175 | |||
| ASTM A179-C | St35.8 DIN17175 | |||
| ASTM A192 | St35.8 DIN17175 | |||
| 20# | ASTM A53-B | St42-2 DIN1626 | ||
| ASTM A106-B | St45-8 DIN17175 | |||
| ASTM A178-C | St45-4 DIN1629 | |||
| 45# | ASTM A1045 | CK45 | ||
| 16Mn | ASTM A210-C | St52 DIN1629 | ||
| 37Mn5 | J55 | |||
| 27SiMn | ||||
| CrMo | ASTM 4135,4150 | CrMo4 DIN17212 | ||
| 40Cr | ASTM 5140 | 41Cr4 | ||
| Chemical Composition | C | Mn | P≤ | S≤ | Si≤ |
| 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 | 0.25 |
| Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| ≥180 | ≥325 | ≥35 |
Gnee is a company who focuses on supplying all kinds of steel pipeline products, such as different material of steel pipes, pipe fittings, flange and other related accessories, which are used in fields of oil, gas, petrochemical, power plant, water refining, firefighting, and so on. All the products are strictly according to related standards, like API/ANSI/ASME/BS/DIN.
We provide ONE-STOP service. Our steel pipes and fittings export to more than 35 countries. With the years' experience in pipeline products, we try our best to solve, to meet their various requirements, such as offering solutions of pipe corrosion protection, supplying related pipeline repair products. Providing customized steel products. Also we help our customers to win the bids. We have good reputation in the steel products market. We pay attention on the products, lead time and customer service.
We believe that quality, service and development are the soul for a good company. Both of superior quality products and complete customer satisfaction are our forte. We are ready to serve every potential customer, and we will be glad to develop and succeed business with you. I am sure, to be our customer, we will be a Win-Win partner.
FAQ
1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.what can you buy from us?
Steel pipe,Fin tube,Container house,Greenhouse,Integrated house
3. why should you buy from us not from other suppliers?
We own the production bases for steel pipe, fin tube,Fan and Air Cooler. Our Main products: Steel pipe Greenhouse Integrated house Container House Fin tube Air cooler
