GB/T 809-1988
Active
GB/T 41157.2-2022
Active
National standards
GB/T 41157.2-2022 Fasteners for nuclear power plants—Part 2:Nuts made of carbon steel and alloy steel
GB/T 41157.2-2022 Fasteners for nuclear power plants—Part 2:Nuts made of carbon steel and alloy steel
Basic Information
Standard Code:
GB/T 41157.2-2022
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Fasteners
ICS Name:
\nNut
Publish Date:
2022-03-09
Implement Date:
2022-10-01
Pages:
18 pages
Scope
This document specifies the technical requirements for Class 1, 2, and 3 carbon steel and alloy steel nuts (hereinafter referred to as Class 1, 2, and 3 nuts) used in pressurized water reactor nuclear power plants, the test methods at room temperature (10 °C to 35 °C), and the marking and packaging.
Note 1: The product dimensions shall be in accordance with the corresponding product standards or drawings.
This document applies to Class 1, 2, and 3 carbon steel and alloy steel nuts:
a) made of carbon steel or alloy steel;
b) conforming to the ordinary thread specified in GB/T 192 and GB/T 196;
c) coarse-tooth thread M5 to M64, fine-tooth thread M8×1 to M64×4;
d) conforming to the diameter and pitch combination specified in GB/T 193;
e) conforming to the tolerances specified in GB/T 197 and GB/T 9145.
This document does not specify the following performance requirements:
—— Locking performance of effective torque nuts (see GB/T 3098.9);
—— Torsion clamping force performance (test method see GB/T 16823.3);
—— Weldability;
—— Corrosion resistance.
Other types of nuclear power plants can also refer to this document for the use of Class 1, 2, and 3 carbon steel and alloy steel nuts.
Note 2: The maximum operating temperature of the fasteners produced in accordance with this document is 370 °C. When the operating temperature exceeds 370 °C, it is recommended that users consult experts in the relevant field.
Development Information
Same series standard
GB/T 41157.1-2022 Fasteners for nuclear power plants—Part 1:Bolts, screws and studs made of alloy steel
GB/T 41157.3-2022 Fasteners for nuclear power plants—Part 3:Bolts,screws and studs made of corrosion-resistant stainless steel
GB/T 41157.4-2022 Fasteners for nuclear power plants—Part 4:Nuts made of corrosion-resistant stainless steel
GB/T 41157.5-2022 Fasteners for nuclear power plants—Part 5:Acceptance inspection
Referenced Standards
GB/T 196-2003 General purpose metric screw threads—Basic dimensions
GB/T 197-2003 General purpose metric screw threads—Tolerances
GB/T 197-2018 General purpose metric screw threads—Tolerances
GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature
GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature
GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T)
GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T)
GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method
GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method
GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method
GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method
GB/T 3098.2-2000 Mechanical properties of fasteners—Nuts—Coarse thread
GB/T 3098.2-2015 Mechanical properties of fasteners—Nuts
GB/T 3103.1-2002 Tolerances for fasteners—Bolts, screws, studs and nuts
GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method
GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method
GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method
GB/T 5276-2015 Fasteners—Bolts,screws,studs and nuts—Symbols and descriptions of dimensions
GB/T 6394-2002 Metal-methods for estimating the average grain size
GB/T 6394-2017 Determination of estimating the average grain size of metal
GB/T 11376-1997 Phosphate conversion coatings for metals
GB/T 11376-2020 Metallic and other inorganic coatings—Phosphate conversion coating of metals
GB/T 16825.1-2002 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
GB/T 16825.1-2008 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
GB/T 16825.1-2022 Metallic materials—Calibration and verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Calibration and verification of the force-measuring system
NB/T 20003.4-2021 Nuclear power plant equipment inspection for non-destructive testing - Part 4: Penetration testing
NB/T 20003.5-2021 Nuclear plant machinery equipment non-destructive testing - Part 5: Magnetic particle testing
NB/T 20003.5-2010 Nuclear equipment inspection of the nuclear island machinery: Part 5: Magnetic particle inspection. (Translation of Chinese text only)
NB/T 20008.12-2010 NB/T 20008.12-2010 Other Materials for Pressurized Water Nuclear Power Plant Part 12: Forged and Rolled Bars for Bolts and Screws of Class 1, 2 and 3 Equipment in Pressurized Water Nuclear Power Plant
NB/T 20003.4-2010 Non-destructive testing for mechanical components in nuclear island of nuclear power plants-Part 4:Penetrant testing
GB/T 196-2025 General purpose metric screw threads—Basic dimensions
GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts
Related Standards
GB/T 1229-1991
Replaced
GB/T 1229-1991 High strength large hexagon nuts for steel structures
GB/T 17880.1-1999
Active
GB/T 17880.1-1999 Flat head riveted nuts
GB/T 17880.2-1999
Active
GB/T 17880.2-1999 Countersunk head riveted nuts
GB/T 17880.3-1999
Active
GB/T 17880.3-1999 Small countersunk head riveted nuts
GB/T 17880.4-1999
Active