Inconel® 600 Seamless Pipe | Corrosion Resistant Alloys

Alloy 600 Nickel Pipe

UNS N06600 / W.Nr. 2.4817

COMMON TRADE NAMES: Inconel® 600, Sanicro® 70

Alloy 600 is a nickel-chromium-iron solid solution strengthened alloy with a nominal chemical composition of 72% nickel, 16% chromium, and 8% iron. It is commonly referred to by the tradename Inconel® 600 and the universal designation UNS N06600. Alloy 600 offers good corrosion resistance in many media with superior oxidation resistance at elevated temperatures.

Characteristics

Corrosion Resistance

Alloy 600 has outstanding corrosion resistance imparted by the dual corrosion fighting power of chromium and nickel. Chromium resists corrosion from oxidizing media while nickel defends against attack from many reducing agents. Alloy 600 exhibits good corrosion resistance in reducing acids, mildly oxidizing acids, high purity water, and other media. However, Alloy 600 is not suitable for strong oxidizing acids such as hot nitric acid. It is essentially immune to chloride stress corrosion cracking.

Elevated Temperature Resistance

Alloy 600 provides excellent oxidation resistance at temperatures up to 2150°F (1177°C). However, it is susceptible to sulfidation attack.

Inconel 600 Mechanical Properties

Alloy 600 can be provided in the lower strength, annealed condition, or strengthened through the pilger process. Alloy 600 maintains excellent toughness even in the higher strength conditions and maintains toughness at cryogenic temperatures.

Inconel 600 Heat Treatment

While Alloy 400 cannot be strengthened by heat treating, annealing or stress relieving are commonly used after hot working or cold working operations. Stress-relieving is conducted at 1400°F - 1600°F (760°C - 871°C). Stress-relieving is performed after cold working to reduce residual stress and prevent distortion. Annealing is performed at 1700°F - 1900°F (927°C - 1038°C) to restore full softness.

Workability

Alloy 600 has good hot and cold workability in the annealed condition. Hot-working should be done above 1600°F (871°C) to ensure adequate ductility, while cold work should be performed below 1200°F (649°C).

Applications

Alloy 600 is a versatile alloy used in many different applications, including the chemical process industry, aerospace, food processing, electronics, oil and gas, and nuclear power generation. Its elevated temperature oxidation resistance makes it a good choice for heat-treating fixtures, furnaces, incinerators, and other high-temperature equipment. CRA offers specialty alloy 600 seamless pipe & tube for use in multiple industries and applications, including:

Chemical Processing
Oil & Gas
Electronics
Nuclear Power Generation
Food Processing
Aerospace
High-temperature Environments
Heat-treating Fixtures
Furnaces
Incinerators

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Inconel 600 Chemical Composition

C	Cr	Fe	Mn	Si	Cu	S	Ni + Co
≤ 0.15	14 - 17	6 - 10	≤ 1	≤ 0.5	≤ 0.5	≤ 0.015	≥ 72

(mass %)

Inconel 600 Specifications

ASTM B161, ASTM B163, ASTM B167, ASME SB161, ASME SB163, ASME SB167, AMS 5580, MIL-T 23227

Specified Mechanical Properties in Annealed Condition

Per ASTM B161 / ASTM B163 / ASTM B167, ASME SB161 / ASME SB163 / ASME SB167, AMS 5580, MIL-T 23227

Tensile Strength	Yield Strength	Elongation
minimum, ksi	minimum, ksi	minimum, %
80	35	30

*Higher strength properties can be provided in the cold hardened condition.

Typical Physical & Mechanical Properties in Annealed Condition

		70°F	200°F	400°F	600°F	800°F	1000°F
Density	lbs/in³	0.306	-	-	-	-	-
Thermal Expansion	X10^-6/°F	5.8	7.4	7.7	7.9	8.1	7.7
Elastic Modulus	10³ ksi	31.1	30.5	29.7	28.8	27.8	25.7
Poisson Ratio	-	0.327	0.319	0.312	0.307	0.301	-
Thermal Conductivity	Btu-in/h·ft² ·°F	103	109	121	133	145	139
Specific Heat	Btu/lb·°F	0.106	0.111	0.116	0.121	0.126	0.118
Yield Strength	ksi	35	26	24	23	21	34
Tensile Strength	ksi	80	75	73	70	69	88

Manufacturing Process

PROCESS	DESCRIPTION
Steel Making	Electric Arc Furnace followed by Vacuum Oxygen Decarburization (VOD) or Argon Oxygen Decarburization (AOD).
Pipe Making	Conventional Seamless Cold Finished Pipe and Tube Manufacturing Processes.
Heat Treatment	Cannot be hardened by heat treatment. May be provided in the annealed or cold hardened condition.

Schedule Pipe

Product Capabilities

CRA offers this alloy in:
Seamless Pipe

MIN OD: 2-1/16″ (2.0625″)
MAX OD: 10-3/4″ (10.750”)
THICKNESS: Up to 1.925”
LENGTHS: Up to 70′

Standard & Non-Standard Sizes Available.

Manufactured Material Available as Quickly as 1 Week.

Non-Standard Mill Quantities Accommodated