ASTM SA179 S400 Black Coating Alloy Seamless Steel Pipe Wholesale DN200 Std Q345b Seamless Cold Drawn Low-Carbon Steel Pipes for Heat Exchangers and Condensers

ASTM SA179 S400 Black Coating Alloy Seamless Steel Pipe Wholesale DN200 STD Q345B Seamless cold drawn low-carbon steel pipes for heat exchangers and condensers
ASTM A179/A179M-90a (Reapproved 2001)

Cold drawn seamless low-carbon steel heat exchanger and condenser steel pipes

Scope of application: 1. This standard is applicable to the thinnest seamless steel pipes used in tubular heat exchangers, condensers, and similar heat transfer devices;

2. This standard is applicable to steel pipes ranging from 3.2 to 76.2mm.

General requirements: Unless otherwise specified in this standard, it shall also comply with the applicable clauses of ASTM A450/A450M.

Surface quality: No oxide scale, other surface quality shall comply with ASTM A450/A450M regulations.

Brand and chemical composition (%) C Mn P S

0.06-0.18 0.27-0.63 ≤ 0.035 ≤ 0.035

Note: It is not allowed to provide alloy grades that specifically require the addition of elements other than those mentioned above.

Heat treatment: After the final cold drawing, perform heat treatment at a temperature not lower than 650 ºC.

Hardness test: HRB ≤ 72, sampling requirement is to take any two steel pipes from each batch for Rockwell hardness test. The so-called batch refers to all steel pipes with the same nominal diameter and wall thickness produced from the same furnace without cutting. If it is a batch furnace, the batch only refers to steel pipes with the same furnace number, size, and heat treatment in the same furnace;

Our company is located in the biggest industrial province of China - Jiangsu Province, which is China's largest industrial production province, borders Shanghai City, and has convenient to export transportation conditions. Our company specializes in selling steel products, hot selling products among which are: PPGI, galvanized steel coil, steel sheet, stainless steel sheet, steel pipe seamless and welded, aluminum coil, angel bar, H steel beam, and deformed steel bar. The product performance index has achieved domestic advanced standard. Our products has been wildly sold to Northeast, North China, East China, Europe, Middle East, Southeast Asia, Australia and ect...Total area of our cooperation factory is approximately 58, 000 square meters, and registered capital is RMB 10 million Yuan, and fixed assets is RMB 50 million Yuan. Our cooperation factory has more than 190 employees, including 12 senior engineers and 20 professional backbone technicians. Our cooperation factory has advanced professional manufacture equipment and matured technology as well as a team of high-quality professional management and technical talents. With the strategic thought of striving for survival on the basis of quality and development on the basis of benefit, adhering to management idea of "faith, practical, innovation, and development", we have courage to challenge, and keep continuous innovation in the competition. We also do our unremitting efforts to fight bravely for creating a national brand and international brand. Holding to the intellectual businessman of style and the spirit of sincerity, all staff of our company are willing to cooperate and develop together with you.

1. Who are we?
We are based in Wuxi, China, start from 2021,sell to Mid East(35.00%),South America(20.00%),Southeast Asia(20.00%),Africa(5.00%),Eastern Asia(5.00%),Northern Europe(5.00%),Southern Europe(5.00%),South Asia(5.00%). There are total about 51-100 people in our office.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.What can you buy from us?
Stainless steel materials,Steel sheet coil,ppgi ppgl,galvanized steel coil,aluminum steel coil sheet.

4. Why should you buy from us not from other suppliers?
Integrating the superior resources of China's steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,Western Union,Cash;
Language Spoken:English,Chinese,Arabic,Russian,Korean.