Nickel Alloy Welded Pipe of Alloy C4/UNS N06455 ASTM B619 for Big Size
Through more than ten years of research and development, the production of MTSCO Alloy technology and efficiency of various materials have been greatly improved. The enterprise has passed the national quality management system certification of weapons and equipment, obtained more than 24 authorized patents, participated in the revision of 9 national standards and 3 industry standards. MTSCO has actively participated in the civil military integration project, provided high-temperature alloy materials for a PLA unit, provided high-quality special alloy materials for China ordnance industry group, and provided new low expansion alloy materials for China aviation industry. It has been successfully applied to the domestic large aircraft C919, replacing imports with domestic ones, breaking the foreign blockade monopoly and filling the domestic blank.
Grade | Alloy C4/N06455, Alloy 625 /N06625 , Alloy 600 /N06600 ,Alloy 601 /N06601 , Alloy 718 /N07718, Alloy C276 /N10276 , Alloy 800 /N08800 , Alloy 825 /N08825, Alloy 400 /N04400,etc |
Standard | ASTM B517 ,ASTM B775, ASTM B516, ASTM B751, ASTM B619, ASTM B725, ASTM B730, etc |
Size: | OD:17.1-914.4mmWT:0.75-20mmLength:≤12000mm |
Surface | Annealed Pickled/ Bright Annealed |
Technology | PAW/GTAW |
NDT | Radiographic test; Penetrant test; Hydrostatic test; Eddy current test; Ultrasonic test |
Inspection | 100% RT |
Packing | Plywooden case/ Nesting loading |
Quality Assurance | ISO & PED |
Chemical composition
| % | Ni | Cr | Mo | Fe | Co | C | Mn | Si | P | S | Ti | % |
| min | balance | 14.0 | 14.0 | min | ||||||||
| max | 18.0 | 17.0 | 3.0 | 2.0 | 0.015 | 1.00 | 0.08 | 0.040 | 0.030 | 0.70 | max |
UNS N06455 Features:
Alloy C-4 has outstanding high-temperature stability, and has excellent resistance to stress-corrosion cracking and oxidizing atmospheres up to 1040℃. It has exceptional resistance to a wide variety of chemical process environments, including hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), formic and acetic acids, acetic anhydride, and seawater and brine solutions.

