S460N, feem ntau S460N nyob rau hauv EN 10025-3, muaj qhov tsawg kawg nkaus lub zog ntawm 460 MPa thiab -20℃toughness, thaum S355J2, feem ntau S355J2 nyob rau hauv EN 10025-2, muab 355 MPa yield zog thiab zoo sib xws -20℃toughness. S460N yog haum rau qhov hnyav dua, thaum S355J2 muaj ntau yam ntxiv rau kev siv cov qauv siv.
Raws li ib feem ntawm en 10025-3 normalized steel phaj thiab EN 10025-2 tsev neeg, cov qhab nia no ua haujlwm sib txawv.
S460N: Ib qho yooj yim los yog zoo li qub dov zoo-cov khoom siv hlau nrog qhov tsawg kawg nkaus tawm lub zog ntawm 460 MPa thiab cuam tshuam rau kev sib tw ntawm -20℃. Nws yog tsim los rau high-load daim ntaub ntawv xws li txuas hniav thiab cranes nyob rau hauv nruab nrab huab cua.
S355J2: Ib qho tsis yog- alloy structural steel nrog qhov tsawg kawg nkaus yield zog ntawm 355 MPa thiab cuam tshuam toughness kuaj ntawm -20℃. Nws yog dav siv rau kev tsim kho, vaj tse, thiab kev tsim kho vaj tse vim nws cov khoom siv tau zoo thiab cov nqi siv tau zoo.
S460N muaj lub zog ntau dua rau cov haujlwm xav tau ntau dua, thaum S355J2 yog qhov tsim nyog rau ntau yam kev xav tau ntawm cov qauv nrog rau cov kev xav tau ntawm lub zog.
Kev sib piv tshuaj lom neeg
|
Element |
S460N (EN 10025-3, Ladle, max %) |
S355J2 (EN 10025-2, max %) |
Lub luag haujlwm hauv Cov Khoom |
|---|---|---|---|
|
Cov pa roj carbon (C) |
0.20 |
0.20 |
Zoo sib xws, xyuas kom weldability thiab toughness. |
|
Silicon (Si) |
0.60 |
0.55 |
S460N siab dua Si pab deoxidation. |
|
Manganese (Mn) |
1.00-1.70 |
1.60 |
S460N's range txhawb zog siab dua. |
|
Phosphorus (P) |
0.030 |
0.025 |
S355J2 lub qis P txhim kho toughness. |
|
Sulfur (S) |
0.025 |
0.025 |
Zoo tib yam, xyuas kom zoo weld. |
|
Niobium (Nb) |
0.05 |
- |
S460N's Nb refines nplej rau toughness. |
|
Vanadium (V) |
0.20 |
- |
S460N's V boosts zog. |
|
Aluminium (Al) |
0.020 (min, tag nrho) |
- |
S460N's Al txhim kho zoo - cov qauv nplej. |
|
Chromium (Cr) |
0.30 |
0.30 |
Zoo sib xws, txhim kho corrosion kuj. |
|
Nickel (Ni) |
0.80 |
0.30 |
S460N siab dua Ni txhim kho toughness. |
|
Molybdenum (hli) |
0.10 |
- |
S460N's Mo txhim kho lub zog. |
|
Copper (Cu) |
0.55 |
0.55 |
Zoo sib xws, pab corrosion kuj. |
|
Nitrogen (N) |
0.025 |
0.012 |
S355J2 qis N txo qis brittleness. |
Mechanical Properties Sib piv
|
Khoom |
S460N (EN 10025-3, Tsawg dua lossis sib npaug li 16 hli) |
S355J2 (EN 10025-2, Tsawg dua lossis sib npaug li 16 hli) |
|---|---|---|
|
Yield zog (min, MPa) |
460 |
355 |
|
Tensile zog (MPa) |
540-720 |
470-630 |
|
Elongation (min,%) |
17 |
22 |
|
Impact Toughness (min, J) |
27 ° -20 ° C |
27 ° -20 ° C |
|
Hardness (Brinell) |
170-210 (ntev) |
150-190 (ntev) |
Daim ntawv thov
S460N: Siv nyob rau hauv siab - thauj khoom xws li txuas hniav, cranes, thiab cov tshuab hnyav hauv cov huab cua nruab nrab, qhov twg nws lub zog 460 MPa txhawb nqa hnyav dua.
S355J2: Siv dav hauv kev tsim kho, vaj tse, txuas hniav, thiab kev tsim kho vaj tse, qhov twg 355 MPa yield zog txaus rau nruab nrab loads thiab nqi -effectiveness yog qhov tseem ceeb.
S460N raug xaiv rau cov haujlwm uas xav tau lub zog ntau dua, thaum S355J2 yog qhov nyiam rau ntau yam thiab cov nqi qis dua. Rau cov huab cua txias, xav txog en 10025 3 s460nl normalized structural steel phaj nrog -50℃toughness.
Qhov Tseem Ceeb Qhov Sib Txawv Zoo Tshaj
|
Feature |
S460N (EN 10025-3) |
S355J2 (EN 10025-2) |
|---|---|---|
|
Txuj |
EN 10025-3 (nquag, nplua-grain) |
EN 10025-2 (tsis yog- alloy, kub dov) |
|
Yield zog |
460 MPa (tsawg dua lossis sib npaug li 16 hli) |
355 MPa (tsawg dua lossis sib npaug li 16 hli) |
|
Tensile zog |
540-720 MPa |
470-630 MPa |
|
Elongation |
Ntau dua lossis sib npaug li 17% |
Ntau dua lossis sib npaug li 22% |
|
Toughness |
Ntau tshaj lossis sib npaug li 27 J @ -20 degree |
Ntau tshaj lossis sib npaug li 27 J @ -20 degree |
|
CEV |
Tsawg dua lossis sib npaug li 0.48% (tsawg dua lossis sib npaug rau 63 hli) |
Tsawg dua lossis sib npaug li 0.45% (tsawg dua lossis sib npaug li 40 mm) |
|
Daim ntawv thov |
Siab- cov qauv thauj khoom ( choj, cranes) |
Kev tsim kho dav dav, vaj tse |
|
Nqi |
Siab dua (vim lub zog, kev ua haujlwm) |
Lower (kev muaj pes tsawg leeg, kev ua haujlwm) |
