Cov khoom lag luam
Spa - C steel huab cua wallyog cov atmospheric corrosion tiv taus cov hlau. Lub c ntawm spa - C txhais tau tias txias - rolled. Spa - C phaj txias - rolled steel phaj uas lub thickness ntawm phaj yog 0.6mm- 2.3mm. Lub zog ntawm spa - c yog tsawg dua spa-h.
Spa -} hreasing hlauTxhua tus ua los ntawm cov roj carbon hlau thiab tooj liab, npib tsib xee, phosphorus thiab lwm yam tshuaj lom neeg. Cov ntsiab lus ntawm cov tshuaj lom neeg no, tsuas yog ob peb feem pua. Vim tias cov khoom sib txawv sib txawv, huab cua kev tiv thaiv steel muaj cov khoom zoo dua, nrog rau kev ua haujlwm ntau dua corrosion.
Tshuaj Muaj Tshuaj
Spa - C steel
|
Teem nqi |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
CU |
|
Spa - c |
Tsawg dua los yog sib npaug rau 0.12 |
Tsawg dua los yog sib npaug rau 0.6 |
0.007-0.15 |
Tsawg dua los yog sib npaug rau 0.035 |
0.25-0.75 |
Tsawg dua los yog sib npaug rau 0.65 |
0.30-1.25 |
0.25-0.55 |
Spa - h steel
| Caij (cim thiab npe) | Feem pua ntau (%) |
|---|---|
| C (carbon) | 0.12 - 0.20 |
| Mn (manganese) | 0.50 - 1.50 |
| P (phosphorus) | Tsawg dua los yog sib npaug rau 0.04 |
| S (Sulphur) | Tsawg dua los yog sib npaug rau 0.03 |
| CU (Tooj) | 0.25 - 0.55 |
| CR (chromium) | 0.20 - 0.50 |
| Ni (npib tsib) | 0.30 - 0.50 |
Cov Khoom Siv Neeg Kho Tshuab
Spa - C steel
|
Teem nqi |
Paib lub zog |
Lub zog tensile |
Elongation |
|
Spa - c |
Ntau dua los yog sib npaug rau 315mpa |
Ntau dua los yog sib npaug rau 450mpa |
26% |
Spa - h steel
| Ntiag tug | Zauv / Tem | Sim ntsuas kub | Cov nqi raug / ntau yam (metric) | Cov nqi raug / ntau yam (imperial) | Tus qauv siv rau txoj kev xeem |
|---|---|---|---|---|---|
| Lub zog tensile | Raws li dov | Chav Temp | 490 - 620 mpa | 71 - 90 ksi | ASTM E8 |
| Tawm Zog (0.2% offset) | Raws li dov | Chav Temp | 355 - 450 mpa | 51 - 65 ksi | ASTM E8 |
| Elongation | Raws li dov | Chav Temp | 20 - 25% | 20 - 25% | ASTM E8 |
| Hardness (Brinell) | Raws li dov | Chav Temp | 150 - 200 hb | 150 - 200 hb | Astm E10 |
| Cuam Tshuam Lub Zog (Charpy) | -40 Qib | -40 Qib | 27 J | 20 ft - lbf | ASTM E23 |
Qhov sib txawv ntawm spa - c huab cua steel thiab spa - h huab cua} h huab cua
Hauv Jis G 3125 tus qauv, ob qho tib si spa- h thiab} c ua rau tsev neeg ntawm huab cua ntawm cov huab cua ntawm cov kev ua tau zoo thiab kev siv. Spa - h yog txhais raws li lub siab {5} MPa muaj zog dua li 490-630 MPa. This makes it suitable for structural applications that must withstand complex loads and long-term exposure to harsh environments. Spa - c, ntawm qhov tod tes, muaj cov txiaj ntsig lub zog hauv thaj tsam ntawm 245-35 MPA. Nws cov kev ua tau zoo yog sib piv cov kev sib piv, nrog rau kev ntsuas ntau dua ntawm Weldability thiab ua haujlwm.
Nyob rau hauv cov nqe lus ntawm cov tshuaj muaj kuab lom, spa - h muaj cov khoom siv ntau dua, tseem tooj liab, phosphorus, chromium, thiab npib tooj liab, thiab npib tooj liab, thiab npib tooj liab, thiab npib tooj liab, thiab npib tooj liab, thiab npib tooj liab, thiab npib liab. Cov ntsiab lus tso cai spa- h los ua ib txheej tiv thaiv ruaj khov dua hauv cov huab cua tsis kam. Spa {{4 {}} c, los ntawm kev sib piv, muaj tsawg dua cov kev sib ntxiv. Thaum nws tseem muaj cov chaw huab cua zoo, nws qhov txiaj ntsig tseem ceeb nyob rau hauv cov ntawv thov sib zog rau cov ntawv thov sib xyaw.
Thaum nws los txog rau kev siv, qhov sib txawv ntawm ob ua tau meej dua. Spa - h yog dav siv hauv cov choj, cov chaw loj, thiab siv lub zog uas muaj zog thiab ntev}} lub zog durability yog qhov tseem ceeb. Nws tau txais txiaj ntsig zoo nyob rau hauv kev tswj cov nqi kho mob thaum ua kom muaj kev ruaj ntseg ntawm cov huab cua hnyav hauv Harsh. Spa {6- C, Lub sijhawm no, feem ntau yog siv rau kev ua vaj tse, dav hlau sib dhos, thiab cov qauv hauv nroog kos duab, thiab hauv nroog kos duab kev kos duab. Cov ntawv thov no tsis xav tau ntau lub zog tab sis muab tus nqi zoo ntawm cov tsos thiab corrosion tsis kam.
Spa - htuaj yeem pom raws li "cov kab ke ntawm cov huab cua" ntawm cov huab cua zoo nkauj, tsim los rau kev tsim khoom thiab hnyav} {{{{{{}} Cov kev xaiv " Cov qub qhia txog lub zog thiab kav ntev, thaum lub tom kawg tseem ceeb yooj yim hauv kev rov hais dua thiab kev pom zoo. Ua ke, ob qib kawm ua si tau ua tiav cov luag haujlwm hauv kev tsim kho niaj hnub thiab kev lag luam engineering.
