ThePipingMart Blog Grades AMS 5506 Stainless Steel – Composition, Properties, and Uses

AMS 5506 Stainless Steel – Composition, Properties, and Uses

AMS 5506

In manufacturing and engineering, different types of raw materials are used in creating products. One of the materials commonly used in the industry is AMS 5506. AMS 5506 refers to a type of stainless steel with varying physical and mechanical properties. You’ve come to the right place if you’re interested in learning about AMS 5506’s composition, physical and mechanical properties, uses, and heat treatment.

What is AMS 5506?

AMS 5506 (also known as 420 Stainless Steel) is a specification that outlines the requirements for certain types of stainless steel alloys. This specification, developed by the Society of Automotive Engineers (SAE), specifies these alloys’ chemical composition, mechanical properties, and other characteristics. These materials are used in various applications in the aerospace, automotive, and medical equipment manufacturing industries. One of the key features of AMS5506 stainless steel is its high corrosion and abrasion resistance, making it an excellent choice for environments where these properties are required. Whether designing a new product or looking for materials to meet specific performance requirements, AMS 5506 stainless steel could be an excellent choice for your needs.

What Form Is AMS 5506 Available at Piping Mart?

  • Nuts
  • Bolts
  • Fasteners
  • Electrodes
  • Sheets Plates
  • Tubing

AMS 5506 Composition

AMS 5506 strips is a low-carbon, straight chromium, and ferritic stainless steel. This material is known for its high resistance to crevice, pitting, and general corrosion. The composition of AMS 5506 is between 17%-20% of chromium and 11%-13% of nickel. It also contains low carbon, manganese, silicon, and nitrogen. With these elements in their composition, AMS 5506 can provide excellent resistance to different types of corrosion.

C Mn Si P S Cr
AMS 5506 0.15
min: 12.0
max: 14.0

AMS 5506 Physical Properties

Generally, AMS 5506 tubes has an austenitic structure that provides malleability and good plasticity to the material. The melting point of AMS 5506 is 1398°C or 2550°F. It has a density of .280 pounds per cubic inch, which is lower than other types of stainless steel. AMS 5506 has an electrical resistance of around 57 micro-inch-ohms. Additionally, it has a magnetic permeability of around 1.18.

Thermal Conductivity
Modulus of
Coefficient of
Thermal Expansion
Specific Heat
7750 24.9 at 212°F 550 (nΩ.m) at 68°F 200 GPa 10.3 at 32 – 212°F 460 at 32°F to 212°F
– at 932 °F 10.8 at 32 – 599°F
17.7 at 32-1000°F

AMS 5506 Mechanical Properties

AMS 5506 plates has varying mechanical properties. Regarding tensile strength, AMS 5506 has an average of 70.6 ksi. It also has an average yield strength of 33.8 ksi. The ultimate tensile strength of this stainless steel is between 85 and 110 ksi. The elongation of AMS 5506 averages 32.3%. Generally, this material has excellent resilience, making it suitable for manufacturing different products and equipment.

Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength
0.2% Proof (MPa)
(% in 50mm)
Hardness Brinell
Annealed * 655 345 25 241 max
399°F (204°C) 1600 1360 12 444
600°F (316°C) 1580 1365 14 444
800°F (427°C) 1620 1420 10 461
1000°F (538°C) 1305 1095 15 375
1099°F (593°C) 1035 810 18 302
1202°F (650°C) 895 680 20 262

AMS 5506 Equivalents

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
AMS 5506 S42000 420S37 56C 1.4021 X20Cr13 2303 SUS 420J1

AMS 5506 Uses

AMS 5506 tubes is typically used to create different products in the engineering and manufacturing industry. This material is known for providing excellent corrosion resistance and mechanical properties, making it versatile. Its common uses include floor plates, chemical and process industry equipment, food production equipment, and marine applications. Additionally, AMS 5506 manufactures appliances, kitchen sinks, and automotive trim.

AMS 5506 Hardness

AMS 5506 has an average hardness of 86 HRB. This hardness is on the low side compared to other stainless steel types. However, it can be hardened by cold working. When the material is hardened through cold working, it can achieve a hardness of up to 95 HRB. With high hardness, AMS 5506 can be used for different purposes requiring hardness, strength and durability.

AMS 5506 Heat treatment

AMS 5506 can undergo different types of heat treatments. One of the expected heat treatments for this material is annealing. Annealing refers to heating the material to a specific temperature range and then cooling it slowly. This process can help AMS 5506 to achieve maximum softness and elasticity. Another heat treatment suited for AMS 5506 is solution annealing. This process also involves heating the material and then rapidly cooling it. It can provide the material with increased strength, hardness, and corrosion resistance.


AMS 5506 is a type of stainless steel with excellent corrosion resistance and mechanical properties. Its composition, physical and mechanical properties, uses, hardness and heat treatment options make it versatile and suitable for different applications. Whether creating machinery, appliances, automotive parts, or marine equipment, consider using AMS 5506 for its excellent qualities. Understanding AMS 5506 can help determine if it is the right material for your project.

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