GB Q345D GB/T 1591 Tshuaj
Carbon, Silicon, Manganese, Phosphorus, Sulfur yog cov ntsiab lus tseem ceeb hauv GB Q345D GB / T 1591.
Cov pa roj carbon monoxide yog qhov tseem ceeb tshaj plaws hardening nyob rau hauv steel.
Silicon pab tsim kom muaj zog. Zoo li manganese, silicon yog siv los tswj lub zog ntawm cov hlau thaum lub sij hawm tsim cov hlau.
Manganese yog ib qho tseem ceeb stabilizing lub ntsiab ntawm austenite uas pab tsim cov qauv kev ntxhib los mos thiab ua rau kom ruaj khov, lub zog thiab hnav tsis kam.
Phosphorus yog ib qho teeb meem. Txo cov plasticity thiab toughness ntawm cov hlau thiab tshwm txias brittleness. Nws tuaj yeem ua kom muaj zog ntawm cov hlau thiab txhim kho nws txoj kev ruaj ntseg rau atmospheric corrosion. Cov ntsiab lus yuav tsum txwv tsawg dua 0,05 feem pua .
Sulfur feem ntau yog ib qho kev puas tsuaj, ua rau cov hlau kub kub embrittlement siab, thiab cov ntsiab lus sulfur raug txwv tsawg dua 0.05 feem pua.
| Element | Min | Qhov siab tshaj plaws | Zoo sib xws |
|---|---|---|---|
| C. | - | 0.1800 | - |
| Yog lawm | - | 0.5000 | - |
| Mn | - | 1.7000 | - |
| P | - | 0.0300 | - |
| S | - | 0.0250 | - |
| Nb | - | 0.0700 | - |
| V | - | 0.1500 | - |
| Koj | - | 0.2000 | - |
| Cr | - | 0.3000 | - |
| Tsis yog | - | 0.5000 | - |
| ua cu | - | 0.3000 | - |
| Tsis muaj. | - | 0.0120 | - |
| Mo | - | 0.1000 | - |
| Amyotrophic Lateral Sclerosis | 0.0150 | - | - |
| Koj | 0.0200 | 0.2000 | - |
| Rau qhov | 0.0150 | - | - |
| Nb | 0.0150 | 0.0600 | - |
| V | 0.0200 | 0.1500 | - |
| S | - | 0.0300 | - |
| Mn | 1.0000 | 1.6000 | - |
| Yog lawm | - | 0.5500 | - |
GB Q345D GB/T 1591 Mechanical
Yog xav paub ntxiv txog cov khoom siv kho tshuab ntawm GB Q345D GB / T 1591 steel, thov mus saib cov lus hauv qab no:
| Kev ua tau zoo R.p0.2 (MPa) | Traction Rm (MPa) | Kev cuam tshuam KV/Ku (J) | Elongation TO(%) | Kev txo qis ntawm qhov hla ntawm qhov tawg z(%) | Thaum tshav kub kub kho mob | Brinell Hardness (HBW) |
|---|---|---|---|---|---|---|
| 314 (Ntau dua lossis sib npaug) | 612 (Ntau dua lossis sib npaug) | 12 | 44 | 13 | Kev daws thiab kev laus, annealing, ausaging, q plus t, thiab lwm yam. | 321 |
Cov lus nug uas nquag nug
1. Yuav ua li cas txog lub sijhawm khoom xa tuaj?
10-15 hnub tom qab tau txais qhov tso nyiaj.
2. Vim li cas koj xaiv peb lub tuam txhab?
1). Peb muaj cov khoom lag luam ruaj khov dua nrog cov nqi sib tw thiab cov khoom zoo.
2). Peb muaj kev paub ntau dua hauv kev lag luam thoob ntiaj teb nrog kev ntseeg zoo.
3). Peb tuaj yeem muab kev pabcuam tus kheej, xws li ntxiv koj lub tuam txhab logo ntawm cov khoom, cov xim teev thiab lwm yam.
3. Dab tsi yog daim ntawv thov ntawm cov khoom?
Boiler phaj, thawv phaj, flange phaj, nkoj phaj, thiab lwm yam.
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