Alloy C-276 is a nickel-chromium-molybdenum alloy with universal corrosion resistance unmatched by any other alloy. C-276 is also known as Hastelloy C-276 and is an improved wrought version of alloy C in that it usually doesn't need to be solution heat-treated after welding and has vastly improved fabricability. Alloy C-276 exhibits excellent corrosion resistance in a variety of harsh environments and media. Like many other nickel alloys, it is ductile, easily formed and welded. This alloy is used in most industrial settings where aggressive chemical environments are present and other alloys have failed. HASTELLOY C276 is a 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.  Alloy C276  showing excellent resistance to mechanical and chemical degradation. The high nickel and molybdenum content impart remarkable corrosion resistance in reducing environments, while chromium provides the same in an oxidizing media. The low carbon contenet minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. Characteristics ● Superior corrosion resistance. ● Exceptionally low magnetic permeabilty. ● Outstanding cryogenic properties. ● Outstanding corrosion resistance. Alloy C-276 is frequently used in many industries, including chemical and petrochemical processing, oil and gas, power generation, pharmaceutical, pulp and paper production and waste water treatment. End use applications include stack liners, ducts, dampers, scrubbers, stack gas reheaters, heat exchangers, reaction vessels, evaporators, transfer piping and many other highly corrosive applications.ASTM B622Alloy C276 (UNS N10276) Composition %

O.D	O.D Toleracne	W.T Tolerance
Inch	mm	%
1/8"	+0.08/-0	+/-10
1/4"	+/-0.10	+/-10
Up to 1/2"	+/-0.13	+/-15
1/2" to 1-1/2" , excl	+/-0.13	+/-10
1-1/2" to 3-1/2" , excl	+/-0.25	+/-10
Note: The tolerance can be negotiated according to the customer's specific requirements

Ni Nickel	Cr Chromium	Mo Molybdenum	Fe lron	W Tungsten	C Carbon	Si Silicon	Co Cobalt	Mn Manganese	V Vanadium	P PhosphorouS	S Sulfur
57.0 min	14.5-16.5	15.0-17.0	4.0-7.0	3.0-4.5	0.010 max	0.08 max	2.5 max	1.0 max	0.35 max	0.04 max	0.03 max

Maximum allowable pressure(unit: BAR)
Wall Thickness(mm)
		0.89	1.24	1.65	2.11	2.77	3.96	4.78
O.D(mm)	6.35	529	769	1052	1404
	9.53	340	487	671	916	1186
	12.7	250	356	486	664	869
	19.05		232	313	423	551
	25.4		172	231	310	401	596	738
	31.8			183	245	315	464	572
	38.1			152	202	260	381	468
	50.8			113	150	193	280	342

Mechanical Properties
Yield Strength	41 Ksi min
Tensile Strength	100 Ksi min
Elongation(2" min)	40%