GB Q345GNH GB / T 4171 resistant hlau
hnav phaj steel Khoom Taw qhia
Q345GNH steel ntawv, Q345GNH steel density, Q345GNH qib, Q345GNH specification, Q345GNH chemistry, Q345GNH sib npaug, Q345GNH steel sib npaug, Q345GNH yield zog, Q345GNH steel phaj 1 Kev sib txuas ntawm GB Q345GNH GB / T 4171 Steel
Daim ntawv thov:High weathering structural steel.
Thaum tshav kub kub kho:1659 degree - 1357 degree .
hnav resistant phaj Khoom Paub meej
GB Q345GNH GB/T 4171 Chemical Element
Carbon, Silicon, Manganese, Phosphorus, Sulfur yog hu ua "Tsib Elements". Lawv yog cov impurities tseem ceeb hauv steel. Carbon txhim kho steel hardness. Silicon ntxiv dag zog rau cov hlau. Manganese pab txhawb kom cov hlau ruaj khov, lub zog thiab hnav tsis kam. Phosphorus txo cov hlau plasticity thiab toughness thiab tshwm txias brittleness. Lub caij no, Nws tuaj yeem ua kom muaj zog ntawm cov hlau, thiab txhim kho atmospheric corrosion stability. Sulfur ua rau kub brittleness ntawm steel siab.
| Lub ntsiab | Min | Max | Zoo sib xws |
|---|---|---|---|
| Ti | - | 0.0300 | - |
| Si | 0.2000 | 0.6000 | - |
| S | - | 0.0350 | - |
| RE | - | 0.1500 | - |
| P | 0.0700 | 0.1200 | - |
| Mn | 0.5000 | 0.9000 | - |
| Cu | 0.2500 | 0.5000 | - |
| C | - | 0.1200 | - |
GB Q345GNH GB/T 4171 Mechanical Properties
Lub zog tensile ntawm GB Q345GNH GB / T 4171 steel yog nruab nrab ntawm 570 thiab 700MPa. Lub zog tawm ntawm cov hlau no yog min 195MPa thiab elongation tom qab tawg yog kwv yees li 12%. Tus nqi ntsuas ntawm lateral expansion ntawm steel mus txog 22%. Qhov kev cuam tshuam lub zog ntawm GB / T 4171 steel daim hlau tuaj yeem ncav cuag 34J. Kev ua haujlwm txias ntawm cov hlau phaj yog qhov txaus siab, nrog lub vojvoog khoov ntau dua 4 npaug ntawm qhov dav ntawm cov hlau phaj.
Cov txiaj ntsig yog hais txog kev hloov pauv ntawm GB Q345GNH GB / T 4171 los ntawm lub xeev tsis sib xws elastic mus rau lub xeev elastic-yas tom qab ncav cuag qee qhov kev ntxhov siab deformation. Nws cim qhov pib ntawm macro-yas deformation.
Tensile lub zog (Rm) yog hais txog qhov siab tshaj plaws uas GB Q345GNH GB / T 4171 dais 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 thaum qhov siab tshaj plaws tau mus txog. Tom qab ntawd, GB Q345GNH GB / T 4171 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 shrinks sai, ua rau caj dab kom txog thaum tawg. Qhov siab tshaj plaws tus nqi ntawm GB Q345GNH GB / T 4171 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) |
|---|---|---|---|---|---|---|
| 462 (Ntau dua lossis sib npaug) | 223 (Ntau dua lossis sib npaug) | 32 | 43 | 23 | Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam | 313 |
GB Q345GNH GB/T 4171 Lub cev muaj zog
GB Q345GNH GB / T 4171 cov khoom siv lub cev yuav tsum ua raws li cov txiaj ntsig tau muab rau hauv cov lus hauv qab no.
| 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.22 | - | |||
| 375 | 361 | - | 14.3 | 244 | - | ||
| 919 | - | 41 | 31.2 | 422 | 132 |
abrasion resistant steel phaj Khoom duab
GNEE Group Photo
Kev cog lus rau kev tswj hwm nruj thiab kev pabcuam rau cov neeg siv khoom, peb muaj cov neeg ua haujlwm paub txog kev npaj ua kom tau raws li koj xav tau thiab ua kom cov neeg siv khoom txaus siab. Peb lav koj zoo nyob hauv Suav teb.
GNEE Group Exhibition Duab
GNEE Group cov neeg siv khoom tuaj xyuas
Yog tias koj muaj kev xav tau ntau ntxiv thiab cov lus nug txog GB Q345GNH GB / T 4171 resistant steel, peb zoo siab los qhia koj!
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