ISO 2338 Parallel Pins of Unhardened Steel and Austenitic Stainless Steel

ISO 2338 Parallel Pins of Unhardened Steel and Austenitic Stainless Steel

Dimensions Of ISO 2338 Parallel Pins

Dimensions in Millimetres

d m6/h81 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6 8 10 12 16 20 25 30 40 50
c = 0.12 0.16 0.2 0.25 0.3 0.35 0.4 0.5 0.63 0.8 1.2 1.6 2 2.5 3 3.5 4 5 6.3 8
l2)
nom. min. max.
2 1.75 2.25
3 2.75 3.25
4 3.75 4.25
5 4.75 5.25
6 5.75 6.25
8 7.75 8.25
10 9.75 10.25
12 11.5 12.5 Range
14 13.5 14.5
16 15.5 16.5
18 17.5 18.5
20 19.5 20.5
22 21.5 22.5
24 23.5 24.5 of
26 25.5 26.5
28 27.5 28.5
30 29.5 30.5
32 31.5 32.5
35 34.5 35.5
40 39.5 40.5 commerical
45 44.5 45.5
50 49.5 50.5
55 54.25 55.75
60 59.25 60.75
65 64.25 65.75
70 69.25 70.75 lengths
75 74.25 75.75
80 79.25 80.75
85 84.25 85.75
90 89.25 90.75
95 94.25 95.75
100 99.25 100.75
120 119.25 120.75
140 139.25 140.75
160 159.25 160.75
180 179.25 180.75
200 199.25 200.75

1) Other tolerance as agreed between customer and supplier

2) For nominal lengths above 200 mm, steps of 20 mm.

Requirements and reference International Standards

Material1) Steel (St) Austenitic stainless steel
Hardness 125 HV30 to 245 HV30 A1 in accordance with ISO 3506-1,
hardness 210 HV30 to 280 HV30
Surface finish Plain, i.e. pins to be supplied in natural finish
treated with a protective lubricant, unless
otherwise specified by agreement between
customer and supplier.
Plain, i.e. pins to be supplied in natural finish.
Preferred coatings are black oxide,
phosphate coating or zinc plating with
chromate conversion coating (see ISO 9717
and ISO 4042).

Other coatings as agreed between customer and supplier.

All tolerances shall apply prior to the application of a plating or coating.
Surface roughness For pins with tolerance class m6: Ra ≤ 0.8 µm
For pins with tolerance class h8: Ra ≤ 1.6 µm
Workmanship Pins shall be free of irregularities or detrimental defects.
No burss shall appear on any part of the pin.
Acceptability The acceptance procedure is covered in ISO 3269.

1) Other materials as agreed between customer and supplier.

Designation

EXAMPLE 1
An unhardened steel parallel pin, with nominal diameter d = 6 mm, tolerance class m6 and nominal length l = 30 mm is designated as follows:

Parallel pin ISO 2338 – 6 m6 x 30 – St

EXAMPLE 2
An unhardened austenitic stainless steel pin of grade A1, with nominal diameter d = 6 mm, tolerance class m6 and nominal length l = 30 mm is designated as follows:

Parallel pin ISO 2338 – 6 m6 x 30 – A1