Section 1 - Iron and Steel Products

Section 2 - Nonferrous Metal Products

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ASTM B 639 Standard, 2025 [CURRENT] comparison document

Title (English): Standard Specification for Precipitation Hardening Cobalt-Containing Alloys Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
ASTM B 639 Standard, 2002 [WITHDRAWN]
Title (English): Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
Replaced by

ASTM B 639 :2025
Publisher: American Society for Testing and Materials (ASTM)
ASTM B 640a Standard, 2012 [CURRENT]

Title (English): Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service

Publisher: American Society for Testing and Materials (ASTM)
ASTM B 640a Standard, 2012 [CURRENT] comparison document

Title (English): Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service
ASTM B 643 Standard, 2025 [CURRENT]

Title (English): Standard Specification for Copper-Beryllium Alloy Seamless Tube

Publisher: American Society for Testing and Materials (ASTM)
ASTM B 643 Standard, 2025 [CURRENT] comparison document

Title (English): Standard Specification for Copper-Beryllium Alloy Seamless Tube
ASTM B 643 Standard, 2018 [WITHDRAWN]
Title (English): Standard Specification for Copper-Beryllium Alloy Seamless Tube
Replaced by

ASTM B 643 :2025
Publisher: American Society for Testing and Materials (ASTM)
ASTM B 643 Standard, 2018 [WITHDRAWN] comparison document

Title (English): Standard Specification for Copper-Beryllium Alloy Seamless Tube
ASTM B 644 Standard, 2024 [CURRENT]

Title (English): Standard Specification for Copper Alloy Addition Agents

Publisher: American Society for Testing and Materials (ASTM)
ASTM B 644 Standard, 2024 [CURRENT] comparison document

Title (English): Standard Specification for Copper Alloy Addition Agents

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Section 2 - Nonferrous Metal Products

ASTM B 639 Standard, 2025 [CURRENT] comparison document

ASTM B 639 Standard, 2002 [WITHDRAWN]

ASTM B 640a Standard, 2012 [CURRENT]

ASTM B 640a Standard, 2012 [CURRENT] comparison document

ASTM B 643 Standard, 2025 [CURRENT]

ASTM B 643 Standard, 2025 [CURRENT] comparison document

ASTM B 643 Standard, 2018 [WITHDRAWN]

ASTM B 643 Standard, 2018 [WITHDRAWN] comparison document

ASTM B 644 Standard, 2024 [CURRENT]

ASTM B 644 Standard, 2024 [CURRENT] comparison document

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