UNS Norm materials Page 1

Metals and Alloys in the Unified Numbering System (UNS)

• Axxxxx Aluminum and Aluminum Alloys updated• Cxxxxx Copper and Copper Alloys updated• Dxxxxx Specified Mechanical Properties Steels not updated• Exxxxx Rare Earth and Similar Metals and Alloys not updated• Fxxxxx Cast Irons not updated• Gxxxxx AISI and SAE Carbon and Alloy Steels updated• Hxxxxx AISI and SAE H-Steels updated• Jxxxxx Cast Steels (Except Tool Steels) not updated• Kxxxxx Miscellaneous Steels and Ferrous Alloys not updated• Lxxxxx Low Melting Metals and Alloys not updated• Mxxxxx Miscellaneous Nonferrous Metals and Alloys updated• Nxxxxx Nickel and Nickel Alloys updated• Pxxxxx Precious Metals and Alloys not updated• Rxxxxx Reactive and Refractory Metals and Alloys not updated• Sxxxxx Heat and Corrosion Resistant Steels updated

(Including Stainless), Valve Steels and Iron-Base „Superalloys“• Txxxxx Tool Steels, Wrought and Cast not updated• Wxxxx Welding Filler Metals not updated• Zxxxxx Zinc and Zinc Alloys not updated

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Information about Aluminum and Aluminum Alloys

UNS Axxxxx

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Aluminum and Aluminum Cast Alloys withthe Standard Material Number „UNS Axxxxxx“

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Aluminum Foundry Alloy Castingswith the Material Number xxx.x

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Aluminum Foundry Alloy Castingswith the Material Number xxx.x

All Aluminum Foundry Alloy Castingshave the Standard Material Number

UNS A1xxxx – UNS A6xxxx

The Ingot Alloys are not documented in IMDS!

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Aluminum and Aluminum Wrought Alloys withthe Standard Material Number „UNS Axxxxxx“

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Aluminum and Aluminum Wrought Alloys withthe Standard Material Number „UNS Axxxxxx“

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Aluminum Wrought Alloyswith the Material Number xxxx

All Aluminum Wrought Alloyshave the Standard Material Number

UNS A8xxxx – UNS A9xxxx

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Information about Copper and Copper Alloys

UNS Cxxxxx

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Copper and Copper Alloys withthe Standard Material Number „UNS Cxxxxxx“

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Copper and Copper Alloys withthe Standard Material Number „UNS Cxxxxxx“

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Copper and Copper Alloys withthe Standard Material Number „UNS Cxxxxxx“

The Cast Copper Alloys have the Standard Material NumberUNS C9xxxx

All other Copper Alloys have the Standard Material NumberUNS C1xxxx – UNS C8xxxx

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Information about AISI and SAE Carbon and Alloy Steels

UNS Gxxxxx

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AISI and SAE Carbon Alloy Steels withthe Standard Material Number „UNS Gxxxxxx“

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List of AISI and SAE Carbon Alloy Steels withthe Standard Material Number „UNS Gxxxxxx“

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Example: AISI and SAE Carbon Alloy Steel withthe Standard Material Number UNS G10840

AISI or SAE number of the material

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AISI or SAE number of theMaterial has the form xxBxx

Boron Alloyed Steels

The UNS number has a „1“ as last digit

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AISI or SAE number of the material

Leaded Steels

The UNS number has a „4“ as last digit

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Information about AISI and SAE H-Steels

UNS Hxxxxx

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AISI and SAE H-Steels withthe Standard Material Number „UNS Hxxxxx“

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Example: AISI and SAE Carbon Alloy Steel withthe Standard Material Number UNS H50460

AISI or SAE number of the material

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Information about Miscellaneous Nonferrous

Metals and Alloys UNS Mxxxxx

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Miscellaneous Nonferrous Metals and Alloys withthe Standard Material Number „UNS Mxxxxx“

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List of Miscellaneous Nonferrous Metals and Alloys withthe Standard Material Number „UNS Mxxxxx“

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Example: Miscellaneous Nonferrous Metals and Alloys withthe Standard Material Number UNS M10500

AISI or SAE number of the material

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Information about Nickel and Nickel Alloys

UNS Nxxxxx

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Nickel and Nickel Alloys withthe Standard Material Number „UNS Nxxxxx“

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List of Nickel and Nickel Alloys withthe Standard Material Number „UNS Nxxxxx“

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Example: Nickel or Nickel Alloy withthe Standard Material Number UNS N07718

ASTM/AISI or SAE number of the material

Remark: In many cases the ASTM/AISI or SAE material number is part of theStandard Material Number.Here you find the material number „718“ in theStandard Material Number UNS N07718.Sometimes ist easier to search for*UNS N*718* in the field Std. Mat.-No.

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Information about Heat and Corrosion Resistant Steels (Including Stainless),

Valve Steels and Iron Base „Super Alloys“ UNS Sxxxxx

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Heat and Corrosion Resistant Steels (Including Stainless), Valve Steels and Iron Base „Super Alloys“ UNS Sxxxxx

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List of Heat and Corrosion Resistant Steels (Including Stainless), Valve Steels and Iron Base „Super Alloys“ UNS Sxxxxx

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Example: Heat and Corrosion Resistant Steels (Including Stainless), Valve Steels and Iron Base „Super Alloys“ UNS S30403

AISI or SAE number of the material