Technical Data – Metric

Technical chart

Metric ASME (IFI)
Specification Material
ASME (IFI) B.18.8.4M Carbon Steel Stainless Steel
Chrome Nickel
Per Specification Per Specification Per Specification
Hardness
Diameter Scale  
1-5 Vickers HV 458-560 423-560 Work Hardened
2-3 Rockwell 15N 83.5-86.9 82.0-86.0 Work Hardened
4-6 Rockwell A 82.0-86.4 72.0-76.8 Work Hardened
8-12 Rockwell C 45-53 43-52 Work Hardened
Finish
Standard  Plain/Oiled   Plain   Plain 
Options* Zinc – Mechanical Passivated Passivated
* Other

finishes available upon request

Length Tolerances – Metric Straightness Tolerance – Metric
Nominal Pin Length Length Tolerance
up to 24 mm inc ±0.40
over 24-50 mm inc ±0.50
over 50-75 mm inc ±0.60
over 75 mm ±0.75
  Gage Hole Diameter
Nominal Pin Length Gage Length Maximum Free Pin Diameter Plus
Max Min Max Min
Up to 24, incl. 25.15 24.85 0.22 0.20
Over 24-50 50.15 49.85 0.43 0.40
Over 50 75.15 74.85 0.64 0.60