GB Q345 B GB/T 1591
Low-Alloy High-Strength phaj steel Khoom Taw qhia
GB Q345 B GB / T 1591 steel yog ib qho kev ua haujlwm siab qis alloy steel tsim los ntawm Suav kev lag luam steel. Nws yog tsim los ntawm manganese thiab silicon ua lub ntsiab alloying ntsiab. Cov hlau no muaj lub zog ntau dua rau qhov hnyav dua li ntau lwm cov hlau sib xws, ua rau nws tsim nyog rau ntau yam kev siv, suav nrog kev tsim kho, kev tsim nkoj, kev tsheb ciav hlau, thiab cua zog. Nws hnav thiab corrosion resistant zog kuj ua rau nws zoo tagnrho rau siv nyob rau hauv industrial thiab offshore daim ntaub ntawv. GB Q345 B GB / T 1591 steel yog dav siv nyob rau hauv Suav teb thiab tau txais kev muaj koob meej thoob plaws ntiaj teb.
Peb lub tuam txhab yog thoob ntiaj teb cov khoom siv raw hlau thiab steel khoom.GB Q345 B GB/T 1591yog ib qho ntawm peb cov khoom tseem ceeb steel. Lwm yam tshaj li kev tsim khoom tshiab, peb kuj muaj cov khoom loj GB / T 1591 kom tau raws li qhov xav tau ceev ntawm cov neeg siv khoom. GB Q345 B GB / T 1591 muaj nyob rau hauv ntau qhov ntau thiab tsawg tus qauv thiab tuaj yeem kho raws li cov neeg siv khoom xav tau. Tsis tas li ntawd, peb muab cov kev pabcuam ua haujlwm, xws li: txiav, khoov, drilling, vuam thiab lwm yam kev pabcuam.
Daim ntawv thov:Tsawg alloy siab zog structural steel.
Thaum tshav kub kub kho:1432 degree - 1136 degree .
Low-Alloy High-Strength phaj Khoom Paub meej
GB Q345 B GB/T 1591 Chemical Element
Lub ntsiab alloying ntsiab nyob rau hauv GB Q345 B GB / T 1591 steel yog manganese thiab silicon. Cov ntsiab lus no yog qhov tseem ceeb los tsim kom muaj lub zog tensile xav tau thiab tawm los lub zog ntawm cov khoom. Manganese yog siv rau hauv cov hlau kom muaj zog, hardness, thiab hnav tsis kam ntawm cov khoom. Silicon tsub kom cov electrochemical stability thiab weldability ntawm cov hlau. Lwm cov ntsiab lus alloying kuj tseem tuaj yeem ntxiv me me rau ntau lub hom phiaj.
GB Q345 B GB / T 1591 yog dab tsi? GB Q345 B GB / T 1591 cov ntsiab lus, GB Q345 B GB / T 1591 muaj pes tsawg leeg, GB Q345 B GB / T 1591 cam khwb cia
| Lub ntsiab | Min | Max | Zoo sib xws |
|---|---|---|---|
| C | - | 0.2000 | - |
| Si | - | 0.5000 | - |
| Mn | - | 1.7000 | - |
| P | - | 0.0350 | - |
| S | - | 0.0350 | - |
| Nb | - | 0.0700 | - |
| V | - | 0.1500 | - |
| Ti | - | 0.2000 | - |
| Cr | - | 0.3000 | - |
| Ni | - | 0.5000 | - |
| Cu | - | 0.3000 | - |
| N | - | 0.0120 | - |
| Mo | - | 0.1000 | - |
GB Q345 B GB/T 1591 Mechanical Properties
GB Q345 B GB / T 1591 steel muaj lub zog tensile siab, feem ntau ntawm 500MPa txog 900MPa. Lub zog tawm los feem ntau yog li ntawm 300MPa txog 600MPa. Cov hlau no kuj muaj qhov cuam tshuam zoo, feem ntau ntawm 15J / cm2 txog 20J / cm2. Cov khoom no ua rau nws tsim nyog siv rau hauv cov khoom siv thauj khoom, xws li txuas hniav thiab cov tsev. Cov hlau no kuj muaj qhov hnav tsis kam, ua rau nws haum rau siv hauv nkoj tsim thiab lwm yam kev siv hnav.
Cov khoom siv tseem ceeb yog elasticity, plasticity, nruj, aging rhiab heev, lub zog, hardness, cuam tshuam toughness, qaug zog thiab tawg toughness.
Elasticity:Cov khoom siv hlau deforms thaum nws raug rau sab nraud quab yuam. Thaum lub zog sab nraud raug tshem tawm, nws tuaj yeem rov qab tau nws qhov qub.
Plasticity:Lub peev xwm ntawm GB Q345 B GB / T 1591 los tsim cov deformation mus tas li yam tsis muaj kev puas tsuaj rau sab nraud.
Kev nruj:Lub peev xwm ntawm GB Q345 B GB / T 1591 los tiv thaiv elastic deformation nyob rau hauv kev ntxhov siab.
Lub zog:Lub peev xwm ntawm GB Q345 B GB / T 1591 los tiv thaiv deformation thiab tawg nyob rau hauv sab nraud rog.
Hardness:Lub peev xwm ntawm GB Q345 B GB / T 1591 los tiv thaiv lub siab ntawm cov khoom nyuaj rau hauv nws.
Impact toughness:Lub peev xwm ntawm GB Q345 B GB / T 1591 los tiv thaiv kev puas tsuaj hauv kev cuam tshuam kev thauj khoom.
Fatigue zog:Qhov siab tshaj plaws kev ntxhov siab uas tsis ua rau pob txha tawg thaum GB Q345 B GB / T 1591 raug rau ntau dua lossis hloov pauv.
Fracture toughness:ib qho kev ntsuas kev ua tau zoo siv los cuam tshuam GB Q345 B GB / T 1591 yog lub peev xwm los tiv thaiv kev tawg tsis ruaj khov thiab nthuav dav
| 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) |
|---|---|---|---|---|---|---|
| 558 (Ntau dua lossis sib npaug) | 584 (Ntau dua lossis sib npaug) | 21 | 11 | 41 | Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam | 144 |
GB Q345 B GB/T 1591 Lub cev muaj zog
Lub cev muaj zog ntawm GB Q345 B GB / T 1591 steel suav nrog cov khoom zoo, tsis muaj qhov hnyav, ruaj khov, ductility thiab tiv thaiv kev yaig.
| 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 |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.34 | - | |||
| 614 | 722 | - | 42.3 | 413 | - | ||
| 469 | - | 13 | 33.2 | 434 | 212 |
Low-Alloy High-Strengtht 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 Q345 B GB / T 1591 steel, peb zoo siab los qhia koj!
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