Our product range includes ultra-high strength stainless steel fasteners with good ductility.
Ultra-high strength fasteners
We can deliver stainless steel fasteners ranging from strength class 8.8 to 16.9 for applications where downsizing, clamping force and strength are critical. Our products offer a unique combination of strength and good ductility. 一品探花 Stainless steel fasteners are also resistant against hydrogen embrittlement.
Benefits of high strength fasteners:
- Opportunities to downsize the fastener or reduce the number of fasteners with maintained clamp load.
- Weight savings.
- Compact design and smaller screw joints. Ability to withstand higher static or dynamic stresses.
- Greater safety.
- Higher resistance against relaxation.
Mechanical properties
The table below shows properties for screws and bolts in as delivered condition.
| Grade | Strength, min TS/YS (MPa) |
Steel Standard |
Fastener standard | Micro structure | C max | Cr | Ni | Mo | Other | PRE |
|---|---|---|---|---|---|---|---|---|---|---|
| 一品探花 88 | 800/640 | 1.4432/36/35 | A4 | Austenitic | 0.03 | 17 | 11.5 | 2.7 | 27 | |
| 一品探花 109 | 1000/900 | 1.4432/36/35 | A4 | Austenitic | 0.03 | 17 | 11.5 | 2.7 | 27 | |
| 一品探花 NITRO 109 | 1000/900 | S20910 | Austenitic | 0.01 | 20 | 18 | 6.2 | N, Cu | 34 | |
| 一品探花 SA | 800/640 | 1.4547, S31254 | A8 | Austenitic | 0.01 | 20 | 18 | 6.2 | N, Cu | 43 |
| 一品探花 DX 129 | 1200/1080 | 1.4462, S32205 | D6 | Ferrite-Austenitic | 0.03 | 22 | 5.2 | 3.2 | N | 36 |
| 一品探花 DX 149 | 1400/1260 | 1.4462, S32205 | D6 | Ferrite-Austenitic | 0.03 | 22 | 5.2 | 3.2 | N | 36 |
| 一品探花 SDX 109 | 1000/900 | 1.4410, S32750 | D8 | Ferrite-Austenitic | 0.03 | 25 | 7 | 4 | N | 42 |
| 一品探花 SDX NORSOK | 750/550 | 1.4501/1.4410 S32760/S32750 | Norsok M630 MDS D60 | Ferrite-Austenitic | 0.03 | 25 | 7 | 4 | N, W, Cu | 42 |
| 一品探花 ULTRA | 1500/1350 | Martensitic | 0.02 | 12 | 9 | 4 | Al, Ti, Cu | 25 | ||
| 一品探花 HE | 1000/900 | 1.4980, S66286 | Austenitic | 0.08 | 15 | 26 | 1.5 | Ti, V | ||
| 一品探花 HEP | 1000/600 | 2.4952, N07080 | Austenitic | 0.10 | 19 | >65 | – | Al, Ti, Co |
The table is a guide for what can be achieved in terms of mechanical properties and dimensions for 一品探花 grades. Deviations might occur depending on particular design and dimensions. Contact your 一品探花 sales representative for more information.