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Hastelloy Alloy C-276 Pipes & Tubes


Material Description

UNS N10276

Chemical Composition, %


Ni

Mo

Cr

Fe

W

Co

Mn

C

V

P

S

Si

Bal.

15.0-17.0

14.5-16.5

4.0-7.0

3.0-4.5

2.5 max

1.0 max

.01 max

.35 max

0.04 max

.03 max

.08 max


Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion resistant alloy available. This alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in an as welded condition. Alloy C-276 also has excellent resistance to pitting, stress-corrosion cracking and oxidizing atmospheres up to 1900°F. Alloy C-276 has exceptional resistance to a wide variety of chemical environments.


Characteristics

● One of the few alloys resistant to wet chloride gas, hypochlorite and chlorine dioxide solutions.

Exceptional resistance to strong solutions of oxidizing salts, such as ferric and cupric chlorides.

● Not prone to grain boundary precipitation in the as welded condition and therefore suitable for many chemical process applications


Application

● Digesters and bleach plants in the paper industry.

● Tubing exposed to sour gas.

● Tubing for flue-gas desulfurisation plants.

● Evaporator tubing, heat exchanger tubing, filters and mixers used in sulfuric acid environments.

● Tubing for sulfuric acid reactors.

● Tubing for organic chloride process equipment.

● Tubing for processes utilizing halide or acid catalysts.


Seamless Tube Information

Specification: ASTM B-622 / ASME SB-622

Outside Diameter: 6.0-114 mm

Wall Thickness: 0.5-15 mm

Length: Max.24000mm (the maximum length is for the scope of special diameters and walls)

Other sizes are on the request