Qhov txawv ntawm lawv yog dab tsi?
Lub ntsiab sib txawv yog nyob rau hauv lawv muaj pes tsawg leeg. A514 J qib steel yog tsim los rau nyias daim hlau (thickness tsis tshaj 1.25 ntiv tes), muaj cov ntsiab lus nickel ntau dua, thiab tawv dua. A514 H qib steel, ntawm qhov tod tes, yog tsim rau cov phaj tuab (feem ntau ntawm 1.25 thiab 2.0 ntiv tes) thiab muaj cov tshuaj sib txawv kom tau raws li cov lus qhia tshwj xeeb. Ob leeg steels yog siab -lub zog, quenched thiab tempered alloy steels haum rau vuam daim ntaub ntawv. Txawm li cas los xij, qhov muaj pes tsawg leeg ntawm J qib steel yog qhov ua kom zoo dua rau cov tawv tawv dua hauv cov ntu nyias, thaum H qib steel tshwj xeeb yog tsim los rau cov txheej txheem tuab xws li txuas hniav.
Qhov txawv tseem ceeb:
| Khoom | A514 Qib J | A514 Qib H |
|---|---|---|
| Tensile zog | 100,000 psi (min) | 100, 000 - 130, 000 psi |
| Yield zog | 90,000 psi (min) | 90,000 psi (min) |
| Brinell Hardness | 235 HB (min) | 241 HB (nqe) |
| Elongation | 18% (min) hauv 8 ntiv tes | 16% (min) hauv 8 ntiv tes |
| Impact Toughness | -40 ° F (-40 ° F) | -40 ° F (-40 ° F) |
| Thickness Ntau | 1.5 - 6 ntiv tes (38 - 152 mm) | 1.5 - 6 ntiv tes (38 - 152 mm) |
Tshuaj muaj pes tsawg leeg:
Ob qib muaj cov tshuaj sib xws, suav nrog carbon, manganese, silicon, thiab molybdenum. Txawm li cas los xij, A514 Qib H feem ntau muaj lub zog tensile siab dua me ntsis vim nws cov ntsiab lus zoo alloy.
| Element | A514 Qib J (%) | A514 Qib H (%) |
|---|---|---|
| Cov pa roj carbon (C) | 0.13 - 0.21 | 0.13 - 0.21 |
| Manganese (Mn) | 1.10 - 1.60 | 1.10 - 1.60 |
| Silicon (Si) | 0.15 - 0.60 | 0.15 - 0.60 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.025 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.025 |
| Molybdenum (hli) | 0.20 - 0.30 | 0.20 - 0.30 |
Cov ntsiab lus:
A514 Qib H yog qhov tsim nyog rau cov ntawv thov uas xav tau lub zog siab dua thiab tawv, thaum A514 Qib J yog qhov zoo tagnrho rau kev siv me me. Ob qho tib si muaj cov khoom zoo weldability thiab tsis kam hnav, tab sis Qib H muaj cov khoom siv kho tshuab zoo dua, ua rau nws xaiv rau siab -load, siab - cuam tshuam ib puag ncig.
Ntawm GNEE, peb muab cov khoom zoo - cov khoom siv hlau zoo, tsim kom tau raws li koj qhov kev tsim kho tshwj xeeb. Nrog rau cov nqi sib tw, kev pabcuam txhim khu kev qha, thiab xa khoom raws sijhawm, peb muaj kev ntseeg siab hauv kev muab cov kev daws teeb meem uas yuav txhim kho koj cov haujlwm. Peb caw koj los koom tes nrog peb rau tag nrho koj cov kev xav tau steel!
