AL6-XN Nickel Alloy Available from NeoNickel

A super-austenitic nickel-chromium-molybdenum-nitrogen stainless steel, AL6-XN® has outstanding corrosion resistant in a wide range of applications.

With many years of proven seawater service and 50% higher strength than stainless steel, AL6-XN® is the alloy of choice in high chloride, seawater and brine applications.

Inventory

Product Form	Size Range From	Size Range To
AL6-XN® sheet & plate	0.6 mm	82.6 mm
AL6-XN® pipe	0.5 in	16 in
AL6-XN® round bar	9.5 mm	203.2 mm
AL6-XN® coil	-	1 mm
AL6-XN® pipe fittings	-	1 mm

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Coil

Pipe

Pipe Fittings

Sheet & Plate

Round Bar

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Chemical Analysis

%	Cr	Ni	Mo	C	N	Mn	Si	P	S	Cu	Fe
MIN	20.00	23.50	6	-	0.18	-	-	-	-	-	-
MAX	22.00	25.50	7	0.03	0.25	2	1	0.04	0.03	0.75	Balance

Applications

Ideal for applications in the Oil & Gas industry

AL6-XN® can be used in a variety of applications, here are just a few examples:

FGD scrubbers
Reverse osmosis desalination
Distillation columns
Heat exchangers
Biopharm tanks and fermenters
Pressure vessels
Manways
Agitators and mixers
Seawater coolers in nuclear plants

About AL6-XN®

AL6-XN® (UNS N08367) is a 6% molybdenum, low carbon, nitrogen-bearing super-austenitic stainless alloy. The alloy was originally designed for seawater applications. AL6-XN® has also been successfully used in a broad range of very corrosive environments including the rapidly developing biopharm markets.

The high strength and corrosion resistance of the AL6-XN® alloy make it a better choice than the conventional duplex stainless steels and a cost effective alternative to more expensive nickel-base alloys where excellent formability, weldability, strength and corrosion resistance are essential.

Properties

Density:: 8.055 g/cm³
Melting Point:: 1321-1393°C
Electrical Resistivity:: 8.89 x 10^ -7 Ω⋅m

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Mechanical & Physical Properties	-268°C	-196°C	21°C	93°C	149°C	204°C	316°C	371°C	427°C	538°C
Ultimate Tensile Strength /MPa	1503.1	1351.4	744.6	688.8	-	622.6	593	-	599.8	537.8
0.2% Yield Strength /MPa	979.1	737.7	365.4	340.6	-	278.5	250.3	-	253.7	234.4
Elongation %	36	49	47	47	-	46	47	-	48	50
Charpy Impact V-notch/J	436.6	115.2	190	-	-	-	-	-	-	-
Coefficient of Thermal Expansion /µm/m⁰C	-	-	-	14.22	14.94	15.12	15.48	15.66	15.84	-
Thermal Conductivity /kcal/(hr.m.°C)	-	-	9.97	11.2	12.1	13	15	15.8	15.84	-
Modulus of Elasticity / x10⁵ MPa	-	-	1.95	1.89	-	1.8	1.71	-	1.61	-

Alloy	%Mo	CCCT, °F	CPT, °F	PREN
316L	2.1	< 28	68	24
2205	3.1	68	120	35
904L	4.4	75	130	36
ZERON® 100	3.5	108	180	41
AL6-XN®	6.3	110	172	44
625	9.0	113	-	51

Alloy	93°C	204°C	316°C	427°C
AL6-XN®	27.1	24.6	23.3	22.6
316L	20	19.3	17	15.9
400	18.7	18.7	18.7	15

Ultimate Tensile Strength, ksi	95
0.2% Yield Strength, ksi	45
Elongation	30
Hardness MAX, HRC	30.5

Mechanical & Physical Properties

Mechanical & Physical Properties	-268°C	-196°C	21°C	93°C	149°C	204°C	316°C	371°C	427°C	538°C
Ultimate Tensile Strength /MPa	1503.1	1351.4	744.6	688.8	-	622.6	593	-	599.8	537.8
0.2% Yield Strength /MPa	979.1	737.7	365.4	340.6	-	278.5	250.3	-	253.7	234.4
Elongation %	36	49	47	47	-	46	47	-	48	50
Charpy Impact V-notch/J	436.6	115.2	190	-	-	-	-	-	-	-
Coefficient of Thermal Expansion /µm/m⁰C	-	-	-	14.22	14.94	15.12	15.48	15.66	15.84	-
Thermal Conductivity /kcal/(hr.m.°C)	-	-	9.97	11.2	12.1	13	15	15.8	15.84	-
Modulus of Elasticity / x10⁵ MPa	-	-	1.95	1.89	-	1.8	1.71	-	1.61	-

Corrosion Resistance

Alloy	%Mo	CCCT, °F	CPT, °F	PREN
316L	2.1	< 28	68	24
2205	3.1	68	120	35
904L	4.4	75	130	36
ZERON® 100	3.5	108	180	41
AL6-XN®	6.3	110	172	44
625	9.0	113	-	51

ASME Maximum Allowable Stresses

Alloy	93°C	204°C	316°C	427°C
AL6-XN®	27.1	24.6	23.3	22.6
316L	20	19.3	17	15.9
400	18.7	18.7	18.7	15

Minimum Specified Properties, ASME SB-688 Plate

Ultimate Tensile Strength, ksi	95
0.2% Yield Strength, ksi	45
Elongation	30
Hardness MAX, HRC	30.5

Specifications

UNS Number:: N08367
Standards:: ASTM A182, A240,A249, A276, A312, A479, B462, B472, B564, B675, B676, B688, B690, B691, B366, B804

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