Cylindrical head welding nails
GB10433
Diameter range Φ13-Φ22 Length range 60mm-200mm
| Material | Q195 |
|---|---|
| standard | GB national standard |
| head shape | cylinder |
| Surface | true color |
| (mm) | Φ10 | Φ13 | Φ16 | Φ19 | Φ22 | Φ25 |
|---|---|---|---|---|---|---|
| d(min) | 9.64 | 12.57 | 15.57 | 18.48 | 21.48 | 24.48 |
| d(max) | 10 | 13 | 16 | 19 | 22 | 25 |
| dk(max) | 18.35 | 22.42 | 29.42 | 32.5 | 35.5 | 40.5 |
| dk(min) | 17.65 | 21.58 | 28.58 | 31.5 | 34.5 | 39.5 |
| k(max) | 7.45 | 8.45 | 8.45 | 10.45 | 10.45 | 12.55 |
| k(min) | 6.55 | 7.55 | 7.55 | 9.55 | 9.55 | 11.45 |
| r(min) | 2 | 2 | 2 | 2 | 3 | 3 |
| Material | Trademark | ML15Al、ML15 |
| standard | GB/T 6478 | |
| Mechanical properties | σb≥400N/mm2 | |
| σsorσp0.2≥320N/mm2 | ||
| δ5≥14% | ||
| surface treatment | Welding studs without surface treatment | |
| surface defects | The surface of the welding nail should be free of rust, oxide scale, grease and burrs. The surface of the rod is not allowed to have cracks that affect the use, but the depth (radial) of the head crack shall not exceed 0.25 (dk-d）mm。 | |
| Acceptance and packaging | Dimensional characteristics inspection: welding nail diameter d: AQL=1; other dimensional characteristics: AQL=2.5 | |
| Mechanical properties and welding performance characteristics inspection: Each item: qualified quality level AQL = 1.5; sample size n = 3; qualified judgment number Ac = 0 | ||
| ； | ||
| Other standards shall be in accordance with GB/T 90.1 | ||
