Manylebau Aloi 20 Dalen, Plât a Choil
| Manylebau | : | ASTM/ASME SB 463 |
| Maint | : | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x mm 4000 mm |
| Trwch | : | 0.1mm i 100 mm Thk |
| Ffurf | : | Coiliau, Foils, Rholiau, Taflen Plaen, Taflen Shim, Llain, Fflatiau |
| Gorffen | : | Plât rholio poeth (AD), Taflen rolio oer (CR), 2B, Rhif 3, Rhif 4, HL, BA, 8K |
| Caledwch | : | Meddal, Caled, Hanner Caled, Chwarter Caled, Gwanwyn Caled etc. |
Aloi 20 Plât, Dalen a Chyfansoddiad Cemegol Coil
| Gradd | C | Mn | Os | S | Cu | Ni | Cr | Ab | Mo | P |
| aloi 20 | 0.07 uchafswm | 2.00 uchafswm | 1.00 uchafswm | 0.035 uchafswm | 3.0-4.0 | 32.0-38.0 | 19.0-21.0 | 29.85 mun* | 2.0-3.0 | 0.045 uchafswm |
Aloi 20 Dalennau, Platiau a Choiliau Priodweddau Mecanyddol
| Dwysedd | Ymdoddbwynt | Cryfder Tynnol | Cryfder Cynnyrch (0.2% Offset) | Ymuniad |
| 8.1 g% 2fcm3 | 1443 gradd (2430 gradd F) | Psi -80,{000}, MPa {}}} | Psi – 35,000, MPa – 241 | 30% |
Graddau Cyfwerth ar gyfer 20 Dalen a Phlat Aloi
| SAFON | WERKSTOFF NR. | UNS | AFNOR | EN |
| aloi 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |