ASTM A131 Qib E ASTM A131 / A131M Taw Qhia
ASTM A131 Qib E ASTM A131 / A131M steel yog tsim los ntawm cov khoom sib xyaw, tsim kom tau raws li cov kev cai tshwj xeeb ntawm ob qho tib si txhua yam thiab cov khoom siv. Cov cuab yeej siv tshuab suav nrog lub zog tensile thiab hardness, thaum cov khoom siv muaj xws li weldability thiab workability. Cov alloy raug dov hauv plaub qib sib txawv: A, B, AH, thiab DH. Qib A yog lub zog qis tshaj plaws, nrog cov qib siab dua muab cov yam ntxwv zoo dua.
Peb lub tuam txhab tau tsim kev koom tes ntev thiab ruaj khov kev sib raug zoo nrog Tuam Tshoj Hlau thiab Hlau Association, Hlau thiab Steel Association thiab hlau thiab hlau tuam txhab uas muag thoob plaws lub xyoo, xyuas kom meej zus tau tej cov high-zoo ASTM A131 Qib E ASTM A131 / A131M steel thiab muab tus nqi nyiam. Peb ASTM A131 Qib E ASTM A131 / A131M steel khoom raug xa tawm mus rau ntau tshaj 70 lub teb chaws thiab cheeb tsam txawv teb chaws thiab tau txais kev tshuaj xyuas zoo.
Daim ntawv thov:Structural steel rau seagoing.
Thaum tshav kub kub kho:1531 degree - 1755 degree .
ASTM A131 Qib E ASTM A131 / A131M Mechanical Properties
ASTM A131 Qib E ASTM A131 / A131M steel muaj ntau yam ntawm lub cev muaj txiaj ntsig, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev ua haujlwm siab. Cov hlau nta zoo weldability, zoo heev corrosion kuj, thiab tsis kam mus rau kub kub. Lwm qhov txiaj ntsig zoo ntawm cov hlau yog nws cov formability zoo, uas ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov duab nyuaj thiab cov npoo sib txawv.
Cov txiaj ntsig yog hais txog kev hloov pauv ntawm ASTM A131 Qib E ASTM A131 / A131M los ntawm lub xeev tsis sib xws rau elastic-yas lub xeev tom qab ncav cuag ib qho kev nyuaj siab deformation. Nws cim qhov pib ntawm macro-yas deformation.
Tensile zog (Rm) yog hais txog qhov siab tshaj plaws uas ASTM A131 Qib E ASTM A131 / A131M bears ua ntej tawg. Thaum cov hlau yields mus rau ib qho twg, nws tsis kam mus deformation nce ntxiv vim qhov rearrangement ntawm cov nplej. Nyob rau lub sijhawm no, txawm hais tias qhov deformation loj hlob sai, nws tsuas tuaj yeem nce nrog qhov nce ntawm kev ntxhov siab kom txog rau thaum qhov siab tshaj plaws tau mus txog. Tom qab ntawd, ASTM A131 Qib E ASTM A131 / A131M muaj peev xwm tiv thaiv kev deformation yog pom tseeb txo qis, thiab cov yas loj deformation tshwm sim ntawm qhov tsis muaj zog tshaj plaws, qhov twg cov seem ntawm cov hnoos qeev qis zuj zus, ua rau caj dab kom txog thaum tawg. Tus nqi siab tshaj plaws ntawm ASTM A131 Qib E ASTM A131 / A131M ua ntej tensile tawg yog hu ua lub zog txwv lossis lub zog tensile.
| Yield Rp0.2(MPa) |
Tensile Rm(MPa) |
Kev cuam tshuam KV/Ku (J) |
Elongation A (%) |
Kev txo qis hauv ntu ntu ntawm pob txha Z (%) |
Raws li-kub-kho mob | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 747 (Ntau dua lossis sib npaug) | 447 (Ntau dua lossis sib npaug) | 21 | 33 | 23 | Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam | 121 |
ASTM A131 Qib E ASTM A131 / A131M Lub cev muaj zog
Lub cev lub cev ntawm ASTM A131 Qib E ASTM A131 / A131M tsuas yog npog cov qauv ntawm elasticity, coefficient ntawm thermal expansion, thermal conductivity, tshwj xeeb thermal muaj peev xwm, hluav taws xob tiv thaiv tus nqi, ntom, poisson tus piv, thiab lwm yam.
| Kub (degree) |
Modulus ntawm elasticity (GPa) |
Lub ntsiab lus coefficient ntawm thermal expansion 10-6/( degree ) ntawm 20 (degree) thiab | Thermal conductivity (W / m· degree) |
Tshwj xeeb thermal muaj peev xwm (J / kg · degree) |
Tshwj xeeb hluav taws xob resistivity (Ω mm² / m) |
Qhov ntom (kg/dm³) |
Poisson tus coefficient, ν |
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.31 | - | |||
| 917 | 283 | - | 21.3 | 243 | - | ||
| 658 | - | 22 | 31.2 | 332 | 412 |
