Ko te 321 he kowiri tira austenitic austenitic chromium-nickel i hangaia hei whakarato i te momo koranu 18-8 me te pai ake o te aukati intergranular-corrosion. Na te mea he kaha ake te hononga o te titanium mo te waro i te chromium, ko te titanium carbide ka rere matapōkeretia i roto i nga kakano, kaua ki te hanga. tauira tonu i nga rohe witi.Me whai whakaaro te 321 mo nga tono e hiahia ana kia whakamahana i waenga i te 8009F (427°C) me te 1650°F (899°C)
Kohanga | % | Ni | Cr | Fe | N | C | Mn | Si | S | P | Ti |
321 | Min. | 9 | 17 | taurite | 5*(C+N) | ||||||
Max. | 12 | 19 | 0.1 | 0.08 | 2.0 | 0.75 | 0.03 | 0.045 | 0.70 |
Denstiylbm/i^3 | Tauwehe oRoha Ngawha (min/in)-°F | Te Whakawhitinga NgawhaBTU/hr-ft-°F | Wera motuhakeBTU/lbm -°F | Kōwae o te Elasticity(annealed)^2-psi | |
---|---|---|---|---|---|
i te 68 °F | i te 68 – 212°F | i te 68 – 1832°F | i te 200°F | i te 32 – 212°F | mānukanuka (E) |
0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 10^6 |
Kōeke | Te Kaha Toka ksi | Kaha Hua 0.2% Wehenga ksi | Whakaroa - % roto 50 mm | Te pakeke (Brinell) |
---|---|---|---|---|
321 | ≥75 | ≥30 | ≥40 | ≤217 |
AMS 5510,AMS 5645,ASME SA 240,ASME SA 312,ASME SA 479,ASTM A 240,ASTM A 276,ASTM A 276 Tikanga A,ASTM A 276 Tikanga S,ASTM A 312,ASTM A 479,EN 1.4541,QQS 763,QQS 766d,UNS S32100,Werkstoff 1.4541
•He ātete ki te 1600°F
•Whakamaua ki te werawenga wera wera rohe (HAZ) waikura intergranular
•He ātete ki te pakaru o te waikura waikawa polythionic
•He maha nga miihini piston rererangi
•Nga hononga toronga
•Te hanga pu
•Ko nga waiariki waiariki
•Nga taputapu parapara
•Te pāmahana teitei taputapu tukanga matū