List of materials used to manufacture both standard and specialised disc springs.
Corrosion Resistant Disc Springs
| Type | Designation | W.- No | Standard | Chemical Analysis | ||||||||||||||||||||
| C | Si | Mn | P | S | Cr | V | Mo | Ni | Sn | Be | Ni+Co | Cu | Co | Ti | Al | Fe | Zr | B | Nb+Ta | |||||
| Quality Steel | C60 | 1.0601 | DIN 17222 | 0.57 to 0.65 | 0.15 to 0.35 | 0.60 to 0.90 | max 0.045 | max 0.045 | ||||||||||||||||
| Cs70 | BS 1449 | 0.65 to 0.75 | 0.105 to 0.35 | 0.50 to 0.90 | max 0.030 | max 0.030 | ||||||||||||||||||
| C75 | 1.0605 | DIN 17222 | 0.70 to 0.80 | 0.15 to 0.35 | 0.60 to 0.90 | max 0.045 | max 0.045 | |||||||||||||||||
| Refined Steel | Ck67 | 1.1231 | DIN 17222 | 0.65 to 0.72 | 0.15 to 0.35 | 0.60 to 0.90 | max 0.035 | max 0.035 | ||||||||||||||||
| Ck75 | 1.1248 | DIN 17222 | 0.70 to 0.80 | 0.15 to 0.35 | 0.60 to 0.80 | max 0.035 | max 0.035 | |||||||||||||||||
| Ck85 | 1.1269 | DIN 17222 | 0.80 to 0.90 | 0.15 to 0.35 | 0.45 to 0.65 | max 0.035 | max 0.035 | |||||||||||||||||
| 50CrV4 | 1.8159 | DIN 17222 | 0.47 to 0.55 | 0.15 to 0.40 | 0.70 to 1.10 | max 0.035 | max 0.035 | 0.90 to 1.20 | 0.10 to 1.20 | |||||||||||||||
| DIN 17221 | 0.47 to 0.55 | 0.15 to 0.40 | 0.70 to 1.10 | max 0.030 | max 0.030 | 0.90 to 1.20 | 0.10 to 0.20 | |||||||||||||||||
| Corrosion Resistant Steels | X 12 CrNi 17 7 | 1.4310 | DIN 17224 | max 0.12 | max 1.5 | max 2.0 | max 0.045 | max 0.030 | 16.0 to 18.0 | max 0.8 | 6.0 - 9.0 | |||||||||||||
| X 7 CrNiAl 17 7 | 1.4568 | DIN 17224 | max 0.09 | max 1.0 | max 1.0 | max 0.045 | max 0.030 | 16.0 to 18.0 | 6.5 to 7.75 | |||||||||||||||
| X 5 CrNiMo 17 12 2 | 1.4401 | DIN 17224 | max 0.07 | max 1.0 | max 2.0 | max 0.045 | max 0.030 | 16.5 to 18.5 | 2.0 to 2.5 | 10.5 to 13.5 | ||||||||||||||
| FV520B | BS S145 | 0.048 | 0.37 | 1.05 | max 0.020 | max 0.014 | 16 to 18 | 1.72 | 5.47 | 2.08 | 0.10 | |||||||||||||
| Heat Resistant Steel | 21 CrMoV 5 7 | 1.7709 | DIN 17240 | 0.17 to 0.25 | 0.15 to 0.35 | 0.35 to 0.85 | max 0.030 | max 0.035 | 1.20 to 1.50 | 0.25 to 0.35 | 0.65 to 0.80 | |||||||||||||
| X 22 CrMoV 12 1 | 1.4923 | DIN 17240 | 0.18 to 0.24 | 0.10 to 0.50 | 0.30 to 0.80 | max 0.035 | max 0.035 | 11.0 to 12.5 | 0.25 to 0.35 | 0.80 to 1.20 | 0.30 to 0.80 | |||||||||||||
| X 35 CrMo 17 | 1.4122 | SEW 400 | 0.33 to 0.43 | max 1.0 | max 1.0 | max 0.045 | max 0.030 | 15.5 to 17.5 | 0.9 to 1.3 | max 1.0 | ||||||||||||||
| X 30 WCrV 5 3 | 1.2567 | 0.25 to 0.35 | 0.15 to 0.30 | 0.20 to 0.40 | max 0.035 | max 0.035 | 2.20 to 2.50 | 0.50 to 0.70 | W: 4.0 to 4.5 | |||||||||||||||
| A286 | 1.4980 | AISI 660B | max 0.08 | 1.0 | 2.0 | 13.5 to 16 | 0.1 to 0.5 | 1 to 1.75 | 24 to 27 | 1.9 to 2.3 | 0.35 | |||||||||||||
| Copper Alloys | CuSn 8 | 2.1030 | DIN 17670 | 0.01 to 0.4 | 7.5 to 9.0 | Balance | ||||||||||||||||||
| DIN 17662 | ||||||||||||||||||||||||
| CuBe 2 | 2.1247 | DIN 17670 | 1.8 to 2.1 | 0.2 to 0.6 | Balance | |||||||||||||||||||
| DIN 17666 | ||||||||||||||||||||||||
| Nickel & Colbalt Alloys | Nimonic 90 | 2.4632 (LW) | max 0.13 | max 1.0 | max 1.0 | max 0.015 | 18.0 to 21.0 | Balance | max 0.20 | 15.0 to 21.0 | 2.0 to 3.0 | 1.0 to 2.0 | max 1.5 | max 0.15 | max 0.02 | |||||||||
| 2.4969 | ||||||||||||||||||||||||
| Inconel X 750 | 2.4669 | max 0.08 | max 0.50 | max 1.0 | max 0.015 | max 0.01 | 14.0 to 17.0 | min 70.0 | max 0.5 | max 1.0 | 2.25 to 2.75 | 0.40 to 1.00 | 5.0 to 9.0 | 0.7 to 1.2 | ||||||||||
| Inconel X 718 | 2.4668 | 0.02 to 0.08 | max 0.35 | max 0.35 | max 0.015 | max 0.015 | 17.0 to 21.0 | 2.8 to 3.3 | 50.0 to 55.0 | max 0.2 | max 1.0 | 0.70 to 1.15 | 0.30 to 0.70 | Balance | max 0.006 | 4.8 to 5.5 | ||||||||
