Longitudinally Submerged Arc Welded Technology Center
| Chemical laboratory | Mechanics Laboratory | Metallographic Test Laboratory | Welding Laboratory |
As a superior technology center has been establish ed including the domestic first-class chenical laboratory,mechanics laboratory, the metallography test laboratory and welding laboratory with advanced equipments for inspection and test Accordingly,it can provide a comprehensive inspection for the raw material and the finished products so that it guaran test the high quality of products.
Chemical laboratory
- GBS-307B three element automatic analyzer
- CS-282 type microcomputer carbon-sulfur numerical automatic analyzer
- 721W visible spectrophotometer
- DHG-9101 type electric thermostatic air blowing dryer
- Electronic analytical balance
- Direct-reading spectrometer
Mechanics Laboratory
- 1. The tensile test is to test the metal’s tensile strength, yield strength, elongation and reduction of cross sectional area in order to assess the strength and plasticity of welding seam or welded joint.
- 2. The bend tests include horizontal bend test, axial bend test, face bend test, root bend test and side bend test which are mainly used to test the plasticity of welded joint.
- 3. The impact test is used to test the toughness and notch sensibility of weld metal and welded joint.
- 4. The hardness test can be used to test the Rockwell hardness, Brinell hardness and Vickers-hardness of welded joint, as well as test the hardening tendency of welded joint. It can also be used to indirectly test the embrittlement degree of welded joint.
- 5. The fatigue test is used to test the fatigue strength of weld metal and welded joint as well as the fatigue crack growth rate of welded joint.
Metallographic Test Laboratory
It is used to qualitatively or quantitatively analyze the organizational and structural characteristics of joint.Welding Laboratory
Submerged arc weld machine
with double welding wire &arcs
Portable automatic gas
cutting machine
Carbon dioxide protection
weld machine
UOE (Uing and Oing forming) Pipes
Specifications
- Throughput: 400,000 MT
- Outside Diameter : Φ508-Φ1118mm (20"-44")
- Wall Thickness : 6.4-25.4mm (1/4"-1")
- Ouality Standards : API, BS, ASTM , JIS, DIN, GB , ISO, DNV
- Length : 9-12.2m (30'-40')
- Grades : GB/T9711 L190-L555 (API 5L A-X80)
- We are able to provide customers with quality products and perfect service.
- If you want to know more information, please kind to visit our website.
Manufacturing Process: