Thaum xaiv cov hlau zoo rau koj qhov kev tsim kho, nkag siab qhov sib txawv ntawm cov khoom siv feem ntau xws li ASTM A36,S275 JR, thiab S235JR yog qhov tseem ceeb.
S275 JR
Cov qib steel me me no tau siv dav rau lawv lub zog zoo thiab muaj ntau yam. GNEE, raws li tus neeg muag khoom muaj ntawv pov thawj, muaj cov khoom zoo tshaj plaws -ASTM A36, S275JR, thiab S235JR steels nrog cov nqi sib tw thiab cov khoom muag tam sim ntawd.
Hauv tsab xov xwm no, peb sib piv lawv cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev ua haujlwm sib txawv los pab koj xaiv cov khoom siv zoo tshaj plaws rau koj cov kev xav tau.
Cov tshuaj muaj pes tsawg leeg ntawm ASTM A36, S275JR, thiab S235JR Steel
Cov tshuaj muaj pes tsawg leeg ntawm qib steel plays lub luag haujlwm tseem ceeb hauv nws lub zog, durability, thiab weldability. Ntawm no yog kev sib piv ntawm cov ntsiab lus tseem ceeb hauv ASTM A36, S275JR, thiab S235JR steel:
| Qib | C (t Tsawg dua lossis sib npaug li 16mm) | Si | Mn | P | S | Cr | Ni | Cu | Mo | N | Lwm yam |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A36 | 0.26 max | 0.40 max | - | 0.04 max | 0.05 max | - | - | - | - | 0.20 min | - |
| S235 JR | 0.19 max | - | 1.5 max | 0.045 max | 0.045 max | - | - | - | - | 0.60 max | 0.014 max |
| S275 JR | 0.24 max | - | 1.6 max | 0.045 max | 0.045 max | - | - | - | - | 0.60 max | 0.014 max |
Mechanical Properties ntawm ASTM A36, S275JR, thiab S235JR Steel
Cov khoom siv hluav taws xob ntawm cov hlau txiav txim siab nws qhov tsim nyog rau ntau yam kev tsim kho. Nov yog qhov kev sib piv ntxaws:
| Qib | Yield zog (ReH) (N / mm²) (t Tsawg dua lossis sib npaug li 16 hli) min | Tensile Strength (Rm) (N / mm²) (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 16mm) | Elongation (A) (%) (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 40mm) min | Charpy V Test (Cub/degree) | Impact Zog (Longitudinal) / J min |
|---|---|---|---|---|---|
| ASTM A36 | 250 | 400-550 | 23 | - | - |
| S235 JR | 235 | 360-510 | 26 | 20 | 27 |
| S275 JR | 275 | 410-560 | 23 | 20 | 27 |
ASTM A36 vs S275JR vs S235JR: Qhov txawv tseem ceeb
| Khoom | ASTM A36 | S275 JR | S235 JR |
|---|---|---|---|
| Cov ntsiab lus carbon | Siab (0.26 max) | qis (0.24 max) | qis (0.19 max) |
| Yield zog | 250 N/mm² | 275 N/mm² | 235 N/mm² |
| Tensile zog | 400-550 N / mm² | 410-560 N / mm² | 360-510 N / mm² |
| Elongation | 23% | 23% | 26% |
| Impact Zog | - | 27 J | 27 J |
ASTM A36 yog ib qho kev xaiv zoo rau kev siv kev tsim kho dav dav qhov twg weldability thiab formability yog qhov tseem ceeb, tab sis nws muaj zog tensile qis dua thiab lub zog tawm los piv rau lwm tus.
S275JR muaj cov khoom siv kho tshuab zoo dua qub, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm lub zog, ua rau nws haum rau hnyav dua- cov qauv kabmob.
S235JR yog ductile ntau, ua rau nws zoo tagnrho rau cov ntaub ntawv hloov tau yooj yim uas yuav tsum tau elongation zoo dua.
Thaum txiav txim siab ntawm ASTM A36, S275JR, thiab S235JR steel, xav txog cov cai ntawm koj qhov project. Yog tias koj xav tau tus nqi -kev daws teeb meem zoo rau kev siv sib dua, ASTM A36 yog qhov kev xaiv zoo. Txawm li cas los xij, rau lub zog ntau dua thiab cuam tshuam, S275JR thiab S235JR muaj kev ua tau zoo dua.
Tiv tauj peb rau daim ntawv teev nqi tshiab thiab muaj ASTM A36, S275JR, thiab S235JR steel!
Cov khoom siv S275JR yog dab tsi?
S275JR qib steel yogib qho yooj yim weldable tsawg carbon manganese steel nrog zoo cuam tshuam tsis kam. Cov khoom siv no feem ntau muab nkag rau hauv qhov tsis kho lossis tsis zoo. Machinability ntawm cov khoom no zoo ib yam li cov hlau me me.
S275JR sib npaug hauv Suav teb yog dab tsi?
S275JR EN 10025 sib npaug steel khoom hauv Suav teb yogq275 ua. S275JR EN 10025 sib npaug steel Q275 yog Suav cov khoom siv hlau, uas nws lub zog qis kawg nkaus yog 275 MPa.
Puas yog S275JR kub dov?
2500 x 1250 x 6mm Kub Rolled Phaj - S275JR yog cov qauv hlau phaj ua rau BS EN 10025-2 tus qauv.Tsim los siv cov txheej txheem kub dov, cov phaj no muaj cov qauv zoo heev, weldability, thiab lub zog, ua rau nws haum rau ntau yam kev tsim thiab kev siv cov qauv.
S235JR sawv cev rau dab tsi?
Tsab ntawv S stands rau tias cov hlau phaj yog cov qauv. Tus naj npawb 235 qhia tias steel lub zog tawm los. Tsab ntawv JR txhais tau hais tias cov qib steel tau dhau los ntawm Charpy cuam tshuam kev xeem thiab yog qhov zoo. S235JR yog qhov tshwj xeeb muab rau nws, nrog rau txhua lub cim qhia qee yam txawv.