ASME SB622 Seamless Nickel and Nickel Alloy C276 Pipes

Hastelloy C276 is a nickel-molybdenum-chromium super alloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents make the nickel steel alloy especially resistant to pitting and crevice corrosion in reducing environments while chromium conveys resistance to oxidizing media. The low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. This nickel alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process application in an as welded condition.

Keywords:
Seamless tube; Seamless pipe; UNS N06002; UNS N06007; UNS N06022; UNS N06030; UNS N06035;

UNS N06058; UNS N06059; UNS N06060; UNS N06200; UNS N06210; UNS N06230; UNS N06250;

UNS N06255; UNS N10362; UNS N06455; UNS N06686; UNS N06795; UNS N06985; UNS N08031;

UNS N08135; UNS N08320; UNS N08535; UNS N10001; UNS N10242; UNS N10276; UNS N10624;

UNS N10629; UNS N10665; UNS N10675; UNS N12160; UNS R20033; UNS R30556

Referenced ASTM Standard:
B 829 Specification for general requirements for Nickel and Nickel Alloy seamless pipe and tube.
E 8 Test method for tension testing of metallic materials.
E 527 Practice for numbering metals and alloy in the unified numbering system (UNS)

Mechanical Properties:

Product Pictures:

QUALITY CONTROL

1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects