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Mainly contains chromium (16-26%) and nickel (6-22%), common grades include 304 and 316.
Strong corrosion resistance, non-magnetic, good toughness, easy to process, and excellent welding performance.
Contains chromium (12-18%) and carbon (0.1-1.2%), common grades include 410 and 420.
Strength and hardness can be enhanced through heat treatment, good wear resistance, but relatively weak corrosion resistance, and magnetic.
Contains chromium (10.5-30%), low carbon content. Common grades include 430 and 446.
Excellent corrosion resistance, especially against stress corrosion, magnetic property, medium strength, average welding performance.
Contains chromium (18-28%), nickel (4.5-8%), and molybdenum (2.5-4%). Common grades include 2205 and 2507.
Combines the advantages of austenite and ferrite, with high strength, excellent corrosion resistance, and strong resistance to stress corrosion and pitting corrosion.
| Performance Introduction and Supply Range of Stainless Steel High Strength Fasteners | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Types | Grade | Tensile Strength Min |
Yield Strength Min |
Elogation after break Min |
Percentage of Elongation Min |
Percentage of Contraction Min |
Hardness range | Executive Standard | Scopes of Supply | |||
| HV | HRC | HBW | ||||||||||
| Austenitic Stainless Steel | A1 A2 A3 |
50 | 500 | 210 | 0.6d | - | - | — | — | — | ISO3506/1-2020 | M1 —— M140 |
| 70 | 700 | 450 | 0.4d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M64 | ||
| 80 | 800 | 600 | 0.3d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M48 | ||
| A4 A5 |
50 | 500 | 210 | 0.6d | - | - | — | — | — | ISO3506/1-2020 | M1 —— M140 | |
| 70 | 700 | 450 | 0.4d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M64 | ||
| 80 | 800 | 600 | 0.3d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M48 | ||
| 100 | 1000 | 800 | 0.2d | - | - | — | — | — | ISO3506/1-2020 | M6 —— M16 | ||
| A8 | 70 | 700 | 450 | 0.4d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M64 | |
| 80 | 800 | 600 | 0.3d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M36 | ||
| 100 | 1000 | 800 | 0.2d | - | - | — | — | — | ISO3506/1-2020 | M6 —— M16 | ||
| Duplex Stainless Steel | D2 D4 D6 D8 |
70 | 700 | 450 | 0.4d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M64 |
| 80 | 800 | 600 | 0.3d | - | - | — | — | — | ISO3506/1-2020 | M3 —— M48 | ||
| 100 | 1000 | 800 | 0.2d | - | - | — | — | — | ISO3506/1-2020 | M6 —— M16 | ||
| Martensitic Stainless Steel | C1 | 50 | 500 | 250 | 0.2d | - | - | 155 — 220 | — | 147 — 209 | ISO3506/1-2020 | M5 —— M140 |
| 70 | 700 | 410 | 0.2d | - | - | 220 — 330 | 20 — 34 | 209 — 314 | ISO3506/1-2020 | M5 —— M140 | ||
| 110 | 1100 | 820 | 0.2d | - | - | 350 — 440 | 36 — 45 | — | ISO3506/1-2020 | M5 —— M64 | ||
| C3 | 80 | 800 | 640 | 0.2d | - | - | 240 — 340 | 21 — 35 | 228 — 323 | ISO3506/1-2020 | M5 —— M140 | |
| 120 | 1200 | 950 | 0.2d | - | - | 380 — 480 | 39 — 48 | — | ASTM F738M-02 | M6 —— M64 | ||
| C4 | 50 | 500 | 250 | 0.2d | - | - | 155 — 220 | — | 147 — 209 | ISO3506/1-2020 | M1 —— M140 | |
| 70 | 700 | 410 | 0.2d | - | - | 220 — 330 | 20 — 34 | 209 — 314 | ISO3506/1-2020 | M3 —— M64 | ||
| 110 | 1100 | 820 | 0.2d | - | - | 350 — 440 | 36 — 45 | — | ASTM F738M-02 | M6 —— M64 | ||
| Precipitation-hardening Stainless Steel | P1 | 90 | 900 | 700 | 0.2d | - | - | 285 — 370 | 28 — 38 | — | ASTM F738M-02 | M6 —— M64 |
| XM-12 | H900 | 1310 | 1170 | - | 10% | 35% | - | 40 Min | - | ASTM A564-2019 | M5 —— M140 | |
| XM-13 | H950 | 1515 | 1415 | - | 10% | 45% | - | 45 Min | - | ASTM A564-2019 | M5 —— M140 | |
| XM-16 | H900 | 1620 | 1515 | - | 8% | 30% | - | 47 Min | - | ASTM A564-2019 | M5 —— M140 | |
| XM-25 | H900 | 1240 | 1170 | - | 10% | 40% | - | 39 Min | - | ASTM A564-2019 | M5 —— M140 | |
| S11100 | H900 | 1700 | 1590 | - | 11% | 43% | - | 47 Min | - | ASTM A564-2019 | M5 —— M140 | |
| S17400 | H900 | 1310 | 1170 | - | 10% | 40% | - | 40 Min | - | ASTM A564-2019 | M5 —— M140 | |
| S45503 | H900 | 1620 | 1520 | - | 8% | 30% | - | 47 Min | - | ASTM A564-2019 | M5 —— M140 | |
| S46500 | H950 | 1655 | 1515 | - | 10% | 45% | - | 47 Min | - | ASTM A564-2019 | M5 —— M140 | |
Austenitic stainless steel fasteners (such as grades 304 and 316) offer strong corrosion resistance, are non-magnetic, possess good toughness, and are easy to process with excellent welding performance.
Martensitic stainless steel fasteners (like grades 410 and 420) are chosen when high strength, hardness, and wear resistance are needed. Their properties can be enhanced via heat treatment, though they have relatively weaker corrosion resistance compared to austenitic types.
Duplex stainless steel (such as 2205 and 2507) combines the advantages of both austenite and ferrite structures. It provides high strength along with exceptional resistance to stress corrosion and pitting corrosion, making it perfect for demanding chemical and marine applications.
Ferritic stainless steel fasteners exhibit excellent high-temperature oxidation resistance, working at temperatures up to 800℃. They also feature a low thermal expansion coefficient, which makes them highly suitable for automotive exhaust systems and mufflers.
These fasteners conform to global executive standards such as ISO 3506/1-2020, ASTM F738M-02, and ASTM A564-2019, providing a wide supply range from thread sizes M1 up to M140 depending on the steel type.
