GB/T 13840-1992
Abolished
GB/T 29655-2025
Active
National standards
GB/T 29655-2025 Strip-casting neodymium iron boron alloy flakes
GB/T 29655-2025 Strip-casting neodymium iron boron alloy flakes
Basic Information
Standard Code:
GB/T 29655-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rare earth metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
16 pages
Scope
This document specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation, storage, and accompanying documents for quick-setting NdFeB alloy sheets.
This document is applicable to the inspection and production of quick-setting NdFeB alloy sheets used in sintered NdFeB permanent magnetic materials.
Development Information
Replace the following standards
Referenced Standards
GB/T 8170-1987 Rules for rounding off of numberical values
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 15676-1995 Terms for rare earths
GB/T 15676-2015 Terms for rare earths
GB 39176-2020 Rare earth products packing,marking,transport and storage
XB/T 617.1-2014 Chemical analysis methods for neodymium iron boron alloy—Part 1:Determination of total rare earth content—Oxalate gravimetry
XB/T 617.2-2014 Chemical analysis methods of neodymium iron boron alloy—Part 2:Determination of fifteen REO relative contents
XB/T 617.3-2014 Chemical analysis methods for neodymium iron boron alloy—Part 3:Determination of boron,aluminum,copper,cobalt,magnesium,silicon,calcium,vanadium,chromium,manganese,nickel,zinc and gallium contents—Inductively coupled plasma atomic emission spectrometry
XB/T 617.6-2014 Chemical analysis methods of neodymium iron boron alloy—Part 6:Determination of carbon content—High frequency-infrared absorption method
XB/T 617.7-2014 Chemical analysis methods for neodymium iron boron alloy—Part 7:Determination of oxygen and nitrogen contents—Impulse-infrared and impulse-thermal conductance absorption method
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced