ss400 hollow seem vs s275jr hollow seem
S275JR steel yog qis- carbon steel nrog lub zog zoo thiab tawv. Nws cov tshuaj muaj pes tsawg leeg feem ntau suav nrog hlau, carbon, manganese, thiab silicon, nrog cov ntsiab lus tsis tshua muaj carbon, uas pab txhawb kev txhim kho weldability thiab formability. Nws lub zog tawm los yog 275 MPa, txhais tau tias nws tuaj yeem tiv taus qee qhov kev deformation nyob rau hauv lub siab, ua rau nws haum rau nruab nrab - load structural applications. JR qib kev cuam tshuam toughness qhia tau hais tias nws tuaj yeem tiv taus qhov cuam tshuam tam sim ntawm chav sov yam tsis yooj yim ua nkig, ua rau nws ntseeg tau hauv qhov chaw muaj zog.
SS400 yog ib qho dav siv qis- alloy structural steel nrog lub zog zoo, zoo weldability thiab formability, thaum tseem ua lag luam. Nws lub zog tensile siab tshaj 400 MPa, thiab nws lub zog tawm los yog kwv yees li 245 MPa, ua tau raws li cov kev xav tau ntawm cov khoom siv feem ntau. SS400 muaj qhov toughness nruab nrab, tsim nyog rau kev ua haujlwm ntawm chav tsev kub, thiab tsis tuaj yeem tawg tom qab vuam, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim kho, tshuab tsim, thiab lwm yam.
| Yam khoom | SS400 (Japanese Txuj) | S275JR (European Standard) |
|---|---|---|
| Tshuaj muaj pes tsawg leeg | C Less tshaj los yog sib npaug rau 0.17, Si Less dua los yog sib npaug rau 0.35, Mn Tsawg dua los yog sib npaug rau 1.40 | C Less tshaj los yog sib npaug rau 0.21, Si Less tshaj los yog sib npaug rau 0.55, Mn Less tshaj los yog sib npaug rau 1.50 |
| Mechanical Properties | Tensile zog: 400-510 MPa | Tensile zog: 410-560 MPa |
| Yield zog: Ntau dua lossis sib npaug rau 245 MPa | Yield zog: Ntau dua los yog sib npaug rau 275 MPa | |
| Mechanical Properties | Elongation: Ntau dua lossis sib npaug li 17% | Elongation: Ntau dua lossis sib npaug li 20% |
| Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 27 J (Room Kub) | Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 27 J (Room Kub) |
SS400 Hollow Section thiab S275JR Hollow Section Hoobkas
