ThePipingMart Blog Grades AISI 94B17 Alloy Steel (G94171) – Composition, Properties and Uses

AISI 94B17 Alloy Steel (G94171) – Composition, Properties and Uses

AISI 94B17 Steel

AISI 94B17 is an alloy steel that has a variety of industrial applications. 94B17 Alloy Steel offers good corrosion resistance, high heat resistance, and excellent machinability. If you’re looking for high-strength alloy steel perfect for applications requiring reliable mechanical properties, look no further than UNS G94171, also known as SAE-AISI 94B17 steel. This specialized steel is designed to provide exceptional hardness, toughness, and wear resistance, making it an ideal choice for parts and components that must withstand heavy loads or harsh environments. The composition of SAE 94B17 steel includes a range of alloying elements, such as chromium, nickel, and molybdenum, which work together to create a strong, durable material that can handle even the toughest conditions. Whether working in the automotive, aerospace, or construction industries, AISI 94B17 steel will be a valuable asset to your manufacturing process. This article will explore the properties of G94171 and how they make it ideal for various uses in engineering and metalworking projects.

What Forms of AISI 94B17 is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

AISI 94B17 Composition

Element Weight %
C  0.15-0.20
Mn  0.75-1.00
P  0.035 (max)
S  0.04 (max)
Si  0.15-0.30
Cr  0.30-0.50
Ni  0.30-0.60
Mo  0.08-0.15

AISI 94B17 Mechanical Properties

Properties  Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson’s Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25

AISI 94B17 Thermal Properties

Properties Conditions
T (°C) Treatment
Thermal Conductivity (W/m-K) 42.7 100
Specific Heat (J/kg-K) 477 50-100

AISI 94B17 Physical Properties

Quantity Value Unit
Thermal expansion 16 – 17 e-6/K
Thermal conductivity 16 – 16 W/m.K
Specific heat 500 – 500 J/kg.K
Melting temperature 1370 – 1400 °C
Service temperature 0 – 500 °C
Density 8000 – 8000 kg/m3
Resistivity 0.7 – 0.7 Ohm.mm2/m

AISI 94B17 Uses

AISI 94B17 steel is a versatile material with a variety of uses. It’s frequently used due to its combination of strength and flexibility, making it ideal for applications that require both qualities. It’s often used in industries such as automotive engineering, industrial manufacturing, and aerospace technology, where its ability to resist fatigue and wear is highly valued. This type of steel has even been used in high-end decorative products like kitchen knives due to its corrosion resistance, hardness and sharp edges. AISI 94B17 steel provides a balance between strength and ductility that is ideal for a wide range of applications.

AISI 94B17 Uses in Industries

Automotive Industry

AISI 94B17 is high-strength, low-alloy (HSLA) steel commonly used in the automotive industry. This steel has a high strength-to-weight ratio, ideal for vehicle frames and other structural components. It also has good formability and weldability, allowing for easier manufacturing processes.

Construction Industry

The construction industry also utilizes AISI 94B17 due to its strength and durability. This steel is often used to construct bridges, buildings, and other large structures. Its high strength allows for lighter-weight designs, reducing overall costs and improving efficiency.

Aerospace Industry

In the aerospace industry, AISI 94B17 is commonly used to manufacture aircraft components such as landing gear and structural parts. Its high strength and lightweight properties make it an ideal material for this industry, where weight reduction is crucial for fuel efficiency.

Oil and Gas Industry

AISI 94B17 is also utilized in the oil and gas industry due to its resistance to corrosion and ability to withstand harsh environments. It is commonly used in pipelines, drilling equipment, and offshore platforms where durability is essential.

Agriculture Industry

In the agriculture industry, AISI 94B17 is often used for farming equipment such as tractors, plows, and harvesters. Its high strength makes it suitable for heavy-duty tasks, while its formability allows for more complex designs.

Manufacturing Industry

The manufacturing industry benefits from using AISI 94B17 due to its versatility and cost-effectiveness. This steel can be easily formed into various shapes and sizes, making it suitable for various products such as machinery, appliances, and tools.

AISI 94B17 Corrosion Resistance

AISI 94B17 steel provides excellent corrosion resistance, making it suitable for use in marine environments and other corrosive settings. It is also resistant to acidic solutions, which makes it useful for certain chemical processes. The alloy has a high chromium content (1.2%), which allows it to form a protective oxide layer on its surface that prevents further oxidation from occurring.

AISI 94B17 Heat Resistance

AISI 94B17 also excels in terms of heat resistance. Its excellent thermal properties make it ideal for use in hot environments such as furnaces or boilers, where temperatures can reach up to 1,500°F (816°C). The alloy can also be used in applications where rapid cooling is necessary because it retains its strength even after being exposed to extreme temperatures.

AISI 94B17 Heat Treatment and Machining

AISI 94B17 can be heat treated to achieve a variety of desired properties, including hardness and strength. The alloy can be hardened by quenching and tempering at temperatures between 1,400–1,600°F (760–871°C). Additionally, AISI 94B17 has excellent machinability due to its low carbon content (.18%). This makes it an ideal choice for operations such as drilling or milling when precise parts are required.


AISI 94B17 is an alloy steel that offers good corrosion resistance, high heat resistance, and excellent machinability – making it suitable for many different industrial applications. With its ability to form a protective oxide layer on its surface while retaining strength after exposure to extreme temperatures, AISI 94B17 is an ideal choice for those looking for durable steel with superior thermal properties. In addition to being able to withstand extreme conditions, this alloy’s low carbon content allows for easy machining when precision parts are needed – making it a versatile tool for any engineer or metalworker looking for reliable results from their projects.

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