Conical pin (flat ends)
GB117
Diameter range Φ3-Φ30 Length range 10mm-200mm
| standard | GB national standard |
|---|---|
| head shape | cone |
| Material | 40Cr |
| Grade | 38-46HRC |
| Surface | polish |
| (mm) | (mm) | Φ0.6 | Φ0.8 | Φ1 | Φ1.2 | Φ1.5 | Φ2 | Φ2.5 | Φ3 | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 | Φ12 | Φ16 | Φ20 | Φ25 | Φ30 | Φ40 | Φ50 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d(max) | d(max) | 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 |
| d(min) | d(min) | 0.56 | 0.76 | 0.96 | 1.16 | 1.46 | 1.96 | 2.46 | 2.96 | 3.952 | 4.952 | 5.952 | 7.942 | 9.942 | 11.93 | 15.93 | 19.916 | 24.916 | 29.916 | 39.9 | 49.9 |
| c | c | 0.08 | 0.1 | 0.12 | 0.16 | 0.2 | 0.25 | 0.3 | 0.4 | 0.5 | 0.63 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6.3 |
| steel | Stainless steel | |
| Material | Free-cutting steel: Y12, Y15 (GB/T 8731); | 1Cr13、2Cr13（GB/T 1220）； |
| Carbon steel: 35, 45 (GB 699); | Cr17Ni2（GB/T 1220）； | |
| 35，28~38HRC（GB/T 699）； | 0Cr18Ni9Ti（GB/T 1220） | |
| 45，38~46HRC（GB/T 699）； | ||
| Alloy steel: 30CrMnSiA, 35~41HRC (GB/T 3077) | ||
| taper | Taper tolerance and inspection method shall be agreed upon by both parties in accordance with GB/T 11334 | |
| surface defects | Irregularities and harmful defects are not permitted. | |
| There shall be no burrs on any part of the pin. | ||
| surface treatment | Without treatment; | Simple handling |
| oxidation; | ||
| Phosphating according to GB/T 11376; | ||
| Galvanized passivation according to GB/T 5267 | ||
| Other surface coatings or surface treatments shall be agreed upon by both parties. | ||
| All tolerances apply only before painting or plating. | ||
| Acceptance and packaging | GB/T 90 | |
