Flat washer 45#
DIN125
Diameter range Φ6-Φ48
| standard | DIN German standard |
|---|---|
| Surface | blackened |
| Material | 45# |
| hardness | 300HV |
| (mm) | Φ1.6 | Φ1.7 | Φ2 | Φ2.3 | Φ2.5 | Φ2.6 | Φ3 | Φ3.5 | Φ4 | Φ5 | Φ6 | Φ7 | Φ8 | Φ10 | Φ12 | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | Φ24 | Φ26 | Φ27 | Φ28 | Φ30 | Φ32 | Φ33 | Φ35 | Φ36 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d(min) | 1.7 | 1.8 | 2.2 | 2.5 | 2.7 | 2.8 | 3.2 | 3.7 | 4.3 | 5.3 | 6.4 | 7.4 | 8.4 | 10.5 | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 27 | 28 | 29 | 31 | 33 | 34 | 36 | 37 |
| d(max) | 1.84 | 1.94 | 2.34 | 2.64 | 2.84 | 2.94 | 3.38 | 3.88 | 4.48 | 5.48 | 6.62 | 7.62 | 8.62 | 10.77 | 13.27 | 15.27 | 17.27 | 19.33 | 21.33 | 23.33 | 25.33 | 27.33 | 28.33 | 29.33 | 31.39 | 33.62 | 34.62 | 36.62 | 37.62 |
| dc(max) | 4 | 4.5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 12 | 14 | 16 | 20 | 24 | 28 | 30 | 34 | 37 | 39 | 44 | 50 | 50 | 50 | 56 | 60 | 60 | 66 | 66 |
| dc(min) | 3.7 | 4.2 | 4.7 | 5.7 | 5.7 | 6.64 | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 | 13.57 | 15.57 | 19.48 | 23.48 | 27.48 | 29.48 | 33.38 | 36.38 | 38.38 | 43.38 | 49.38 | 49.38 | 49.38 | 55.26 | 58.8 | 58.8 | 64.8 | 64.8 |
| h(max) | 0.35 | 0.35 | 0.35 | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 | 0.9 | 1.1 | 1.8 | 1.8 | 1.8 | 2.2 | 2.7 | 2.7 | 3.3 | 3.3 | 3.3 | 3.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 5.6 | 5.6 | 5.6 | 5.6 |
| h(min) | 0.25 | 0.25 | 0.25 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.7 | 0.9 | 1.4 | 1.4 | 1.4 | 1.8 | 2.3 | 2.3 | 2.7 | 2.7 | 2.7 | 2.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 4.4 | 4.4 | 4.4 | 4.4 |
| Material | type | steel | steel | Stainless steel |
| Group | - | - | A2、F1、C1 、A4、C4 | |
| standard | - | - | GB/T 3098.6 | |
| Mechanical properties | hardness grade | 200 HV | 300 HV3) | 200 HV |
| Hardness range | 200HV~300HV | 300HV~370HV | 200HV~300HV | |
| tolerance | Product grade | A | A | A |
| standard | GB/T 3103.3 | GB/T 3103.3 | GB/T 3103.3 | |
| surface treatment | Without surface treatment, that is, the gasket should be natural color and coated with anti-rust oil or coating agreed upon by both parties; | Without surface treatment, that is, the gasket should be natural color and coated with anti-rust oil or coating agreed upon by both parties; | No surface treatment, that is, the gasket should be natural color | |
| Electroplating technical requirements shall comply with GB/T 5267.1; | Electroplating technical requirements shall comply with GB/T 5267.1; | |||
| Technical requirements for non-electrolytic zinc flake coating shall comply with GB/T 5267.2; | Technical requirements for non-electrolytic zinc flake coating shall comply with GB/T 5267.2; | |||
| For quenched and tempered washers, appropriate coating or plating processes should be used to avoid hydrogen embrittlement. When electroplating or phosphating washers, appropriate treatment should be carried out immediately after electroplating or coating to drive off harmful hydrogen embrittlement; | For quenched and tempered washers, appropriate coating or plating processes should be used to avoid hydrogen embrittlement. When electroplating or phosphating washers, appropriate treatment should be carried out immediately after electroplating or coating to drive off harmful hydrogen embrittlement; | |||
| All tolerances apply to dimensions prior to painting or plating | All tolerances apply to dimensions prior to painting or plating | |||
| surface defects | Parts shall not have irregularities or harmful defects. Washer surfaces shall not have protruding burrs. | Parts shall not have irregularities or harmful defects. Washer surfaces shall not have protruding burrs. | Parts shall not have irregularities or harmful defects. Washer surfaces shall not have protruding burrs. | |
| Acceptance and packaging | GB/T 90.1、GB/T 90.2 | GB/T 90.1、GB/T 90.2 | GB/T 90.1、GB/T 90.2 | |
