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Light-Duty Slotted Spring Pins · GB/T 879.2-2018
Pins

Light-Duty Slotted Spring Pins

GB/T 879.2-2018 (reference only)

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GB/T 879.2-2018 dimension drawing

Dimensions in mm
GB/T 879.2-2018 dimension drawing

Specification parameters

Technical conditions and referenced standards
Steel Austenitic stainless steel Martensitic stainless steel
Material
  • St (at the manufacturer’s discretion)
  • A
  • B
  • Chemical composition / %
  • Quality carbon steel
  • Silicon-manganese steel
  • C≤0.15
    Mn≤2.00
    Si≤1.50
    Cr:16~20
    Ni:6~12
    P≤0.045
    S≤0.03
    Mo≤0.8
    Cold worked
  • C≥0.15
    Mn≤1.00
    Si≤1.00
    Cr:11.5~14
    Ni≤1.00
    P≤0.04
    S≤0.03
    Quenched and tempered hardness: 440 HV to 560 HV
  • C≥0.65
    Mn≥0.60
    Quenched and tempered hardness: 420 HV to 520 HV
    Austempered hardness: 500 HV to 560 HV
  • C≥0.5
    Si≥1.5
    Mn≥0.7
    Quenched and tempered hardness: 420 HV to 560 HV
  • C≤0.15
    Mn≤2.00
    Si≤1.50
    Cr:16~20
    Ni:6~12
    P≤0.045
    S≤0.03
    Mo≤0.8
    Cold worked
  • C≥0.15
    Mn≤1.00
    Si≤1.00
    Cr:11.5~14
    Ni≤1.00
    P≤0.04
    S≤0.03
    Quenched and tempered hardness: 440 HV to 560 HV
Straight slot
General
  • The slot shape and width are at the manufacturer’s discretion.
Type N
  • The slot shape and width for non-interlocking spring pins shall be subject to special agreement to prevent interlocking.
Surface treatment
  • Untreated ;
  • Oxide treatment requirements in accordance with GB/T 15519;
  • Phosphating requirements in accordance with GB/T 11376;
  • Electroplating requirements in accordance with GB/T 5267.1;
  • Non-electrolytically applied zinc flake coating requirements in accordance with GB/T 5267.2
  • Simple treatment ;
  • Passivation requirements in accordance with GB/T 5267.4
Any other technical requirements or surface treatments shall be agreed between supplier and purchaser.
All tolerances apply before coating or plating
Surface discontinuities
  • Irregular or detrimental defects are not permitted;
    No part of the pin shall have burrs
Shear test
  • GB/T 13683
Acceptance inspection and packaging
  • GB/T 90.1、GB/T 90.2
a  Other materials shall be agreed between supplier and purchaser. Hardness testing shall comply with GB/T 4340.1.
b Where electroplating or phosphating is used, hydrogen embrittlement is unavoidable. Hydrogen embrittlement relief treatment shall be carried out immediately (see GB/T 5267.1).

Product overview

Light-Duty Slotted Spring Pins to GB/T 879.2-2018. For a quotation, specify the nominal size, any applicable length or thread pitch, material or property class, finish and quantity.