
ASTM B168 UNS N06600 Plate Specification
|
Parameter |
Specific projects |
Parameters |
|
Standard Information |
Product Standards |
ASTM B168 / ASME SB-168 |
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General brand |
UNS N06600, Inconel 600, 2.4816, GH600 |
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|
chemical composition |
Main Components (%) |
Nickel (Ni) ≥72.0; Chromium (Cr) 14.0-17.0; Iron (Fe) 6.0-10.0 |
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Critical Element Upper Limit (%) |
Carbon (C) ≤0.15, Manganese (Mn) ≤1.00, Silicon (Si) ≤0.50, Sulfur (S) ≤0.015, Phosphorus (P) ≤0.030, Copper (Cu) ≤0.50 |
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Physical properties |
Density |
8.42 - 8.47 g/cm³ |
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Melting Point Range |
1370 - 1470 °C |
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Magnetic Properties |
None |
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Mechanical properties (annealed) |
Tensile Strength |
≥550 MPa |
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Yield Strength (0.2% Deviation) |
≥240 MPa |
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Elongation (A5) |
≥30% |
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Hardness |
≤100 HRB or HB ≤ 195 |
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Specifications |
Common Steel Plate Thicknesses |
Hot-rolled plate: 2.0 mm to 100 mm; cold-rolled sheet/coil: 0.03 mm to 2.0 mm |
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Common Steel Plate Widths |
20 mm to 2000 mm (specific range varies by supplier and thickness) |
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Standard Plate Dimensions |
1000 × 2000 mm, 1220 × 2440 mm, 1500 × 3000 mm, 1500 × 6000 mm, etc. |
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Heat treatment |
Solution treatment |
Temperature range: 980°C - 1150°C, hold for 1-2 hours, then quickly cool in air or water |
UNS N06600 Inconel 600 Plate Introduction
ASTM B168 UNS N06600 (Inconel 600) is a nickel alloy plate material manufactured in accordance with ASTM B168/ASME SB-168. This alloy exhibits high-temperature corrosion and oxidation resistance, maintaining stability at temperatures up to 1093°C. 600 alloy is widely used in various heat treatment furnaces.

The manufacturing process for Inconel 600 plate begins with slabs. These slabs are hot-rolled at approximately 1200°C to the desired thickness, resulting in a "black" hot-rolled coil with an oxide scale. The surface oxide scale and chromium-depleted layer are then removed by pickling to produce a primary surface finish.
After pickling, the coil may be further cold-rolled at room temperature to achieve thinner gauges and precise dimensions. Cold rolling causes work hardening, necessitating solution annealing to relieve stresses, restore corrosion resistance, and restore ductility.
After annealing, the coil is typically pickled again, and finally flattened to improve shape and trimmed to produce cut-to-length flat sheets or coils.
Inconel 600 Chemical Composition
Ni ≥ 72.0: Main element, provides basic corrosion resistance to reducing media and high-temperature strength
Cr 14.0 - 17.0: Key alloying element, imparts corrosion resistance to oxidizing media and high-temperature oxidation resistance
Fe 6.0 - 10.0: Alloying element
C ≤ 0.15: Requires strict control to ensure intergranular corrosion resistance
Mn ≤ 1.00: Impurity element
Si ≤ 0.50: Impurity element
Cu ≤ 0.50: Impurity element
Al ≤ 0.30: Impurity element
Ti ≤ 0.30: Impurity element
P ≤ 0.015: Impurity element, strictly controlled to improve intergranular corrosion resistance
S ≤ 0.015: Impurity element, strictly controlled to improve hot workability
UNS N06600 Inconel 600 Physical Properties
|
Physical Properties |
Value/Range |
Unit |
|
Density |
8.42 - 8.47 |
g/cm³ |
|
Melting Point |
1370 - 1430 |
°C |
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Thermal Conductivity |
W/(m·K) |
|
|
-20°C |
12.85 |
W/(m·K) |
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-100°C |
13.94 |
W/(m·K) |
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-200°C |
15.15 |
W/(m·K) |
|
-300°C |
16.62 |
W/(m·K) |
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-400°C |
18.71 |
W/(m·K) |
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-500°C |
20.72 |
W/(m·K) |
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-600°C |
22.40 |
W/(m·K) |
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Linear Expansion Coefficient |
10⁻⁶/°C |
|
|
-20°C to 200°C |
12.35 |
10⁻⁶/°C |
|
-20°C to 300°C |
12.75 |
10⁻⁶/°C |
|
-20°C to 400°C |
13.10 |
10⁻⁶/°C |
|
-20°C to 500°C |
13.55 |
10⁻⁶/°C |
|
-20°C to 600°C |
14.50 |
10⁻⁶/°C |
|
-20°C to 700°C |
15.15 |
10⁻⁶/°C |
|
-20°C to 800°C |
15.70 |
10⁻⁶/°C |
|
-20°C to 1000°C |
16.20 |
10⁻⁶/°C |
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Specific Heat |
444 |
J/(kg·K) |
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Resistivity |
1.09 - 1.12 |
μΩ·m |
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Elastic Modulus |
206 |
GPa |
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Magnetic Properties |
None |
- |
|
Curie Point |
-124 |
°C |
Inconel 600 Plate Applications

ASTM B168 UNS N06600 is widely used in critical equipment across various industrial sectors due to its excellent high-temperature corrosion and oxidation resistance, as well as good mechanical properties.
In the nuclear power industry, this alloy plate is primarily used to manufacture nuclear reactor components, such as steam generator heat transfer tubes. It effectively resists stress corrosion cracking in high-temperature, high-pressure aqueous media and possesses the necessary radiation resistance.
In the chemical processing and petrochemical industries, UNS N06600 steel plate is used to manufacture key equipment, reactors, and heat exchanger piping in vinyl chloride monomer production plants. Its high nickel content provides excellent resistance to stress corrosion cracking in reducing media and chlorides, particularly in dry chlorine, hydrogen chloride, and oxidizing and carbonizing environments.
In the heat treatment and industrial furnace industries, this material is commonly used to manufacture high-temperature furnace components, such as radiant tubes, muffles, baskets, and thermowells. The alloy maintains excellent oxidation resistance at temperatures up to 1100°C.
In the aerospace and energy sectors, UNS N06600 steel plate is used in certain high-temperature components of aircraft engines, gas turbine assemblies, and base metal production equipment. This material exhibits high thermal strength below 700°C, can withstand low loads, and maintains good creep rupture strength, making it suitable for applications requiring structural stability at high temperatures.
Inconel 600 Plate Supplier Characteristics
To identify a high-quality ASTM B168 UNS N06600 steel plate supplier, it's important to assess their expertise from multiple perspectives. The following are key characteristics that high-quality suppliers typically possess:

Strict Adherence to Standards and Certifications
Qualified suppliers first ensure that their products fully comply with core standards such as ASTM B168 and ASME SB-168 and can provide material certification. Furthermore, they typically hold quality management system certifications such as ISO 9001 and can clearly provide key data such as their product's chemical composition, physical properties, and mechanical properties.
Advanced Manufacturing and Strict Quality Control
Top-tier suppliers are typically equipped with advanced production equipment, such as cold rolling lines, optical spectrometers, eddy current flaw detection systems, and hydrostatic testing machines, to precisely control the steel plate rolling process. They ensure consistent and reliable chemical composition, mechanical properties, dimensional accuracy, and surface quality in every batch.
Extensive Inventory and Strong Supply Capabilities
A supplier's strength is measured by its ability to consistently supply a wide range of stock specifications and offer a variety of supporting products, including bars, pipes, flanges, and welding materials. This robust supply and inventory capabilities ensure that customer project schedules are met.
Deep Expertise and Reliable Technical Service
A high-quality supplier not only sells products but also provides high-level technical support. For example, their sales team has a deep understanding of the properties of UNS N06600 alloy and can provide material selection recommendations, processing guidance, and after-sales support tailored to the customer's application environment.
