GNEE steel, cov chaw tsim khoom lag luam thiab xa tawm ntawm lub nkoj siab thiab boiler steel daim hlau, cov khoom sivsiab - zoo ASTM A516 GR 70 daim hlaurau kev lag luam xws li roj thiab roj, petrochemical, thiab hluav taws xob tsim hluav taws xob.
Thaum xaiv cov khoom siv rau cov haujlwm thoob ntiaj teb, nkag siab qhov sib npaug ntawm ASTM A516 GR 70 thiab EN P355GH yog qhov tseem ceeb rau cov kws tsim khoom thiab cov neeg tsim khoom kom ua raws li cov qauv thoob ntiaj teb. Kab lus no sib piv lawv cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov ntawv thov kom paub meej lawv qhov sib npaug thiab qhov sib txawv.
Nyem rau kawm paub ntxiv txog A516 GR70
A516 Gr70 thiab P355GH yog dab tsi?
a516g 70
a516g 70(ASTM A516 Qib 70) yogib tug premier carbon steel phaj dav siv nyob rau hauv fabrication ntawm boilers thiab siab hlab ntsha. Nws muaj nuj nqis heev nyob rau hauv cov roj, roj, thiab tshuaj lom neeg kev lag luam vim nws lub zog tensile siab, weldability zoo heev, thiab tshwj xeeb tsis muaj zog toughness nyob rau hauv nruab nrab thiab qis dua -kub ib puag ncig.y.
P355GH
P355GHyogCov txheej txheem European tsis yog{0}} alloy steel qib tau teev tseg raws li EN 10028-2. Nws yog tshwj xeeb engineered rau cov hlab ntsha siab, muaj boilers, thiab tshav kub exchangers.
Lub npe txhais mus rau:
- P:Qhia nws siv hauv cov hlab ntsha siab.
- 355:Qhov tsawg kawg nkaus yield zog yog 355MPa rau nyias daim hlau.
- GH:Qhia qhov tsim nyog rau qhov siab, siab - qhov chaw ua haujlwm kub.
Tshuaj muaj pes tsawg leeg: ASTM A516 GR 70 vs EN P355GH
Ob leeg ASTM A516 GR 70 thiab EN P355GH yog cov pa roj carbon steel daim hlau tsim rau cov hlab ntsha siab, nrog kev sib xyaw ua kom zoo rau kev sib txuas thiab tawv. Cov lus hauv qab no piv lawv cov tshuaj muaj pes tsawg leeg:
|
Element |
ASTM A516 GR 70 (% los ntawm qhov hnyav) |
EN P355GH (% los ntawm qhov hnyav) |
|---|---|---|
|
Cov pa roj carbon (C) |
0.27 max |
0.10–0.22 |
|
Manganese (Mn) |
0.85–1.20 |
1.10–1.70 |
|
Phosphorus (P) |
0.035 max |
0.025 max |
|
Sulfur (S) |
0.035 max |
0.015 max |
|
Silicon (Si) |
0.15–0.40 |
0.60 max |
|
Aluminium (Al) |
0.02 min (rau cov hlau tua) |
0.020 min |
|
Hlau (Fe) |
Tshuav |
Tshuav |
|
Lwm Yam Khoom |
- |
Cr: 0.30 max, Ni: 0.30 max, Mo: 0.08 max |
Qhov txawv tseem ceeb:
- Cov pa roj carbon: ASTM A516 GR 70 tso cai rau cov pa roj carbon ntau dua (0.27% max) dua li P355GH (0.10-0.22%), uas tuaj yeem ua kom muaj zog tab sis yuav tsum tau ua tib zoo vuam kom tsis txhob muaj zog.
- Manganese: P355GH muaj ntau dua manganese ntau dua (1.10–1.70%) dua li A516 GR 70 (0.85–1.20%), txhim kho toughness.
- Phosphorus thiab Sulfur: P355GH muaj kev txwv nruj dua (0.025% P, 0.015% S), txhim kho qhov tsis sib haum xeeb piv rau A516 GR 70 (0.035% max rau ob qho tib si).
- Lwm Yam Khoom: P355GH qhia txog kev txwv rau chromium, npib tsib xee, thiab molybdenum, uas tsis muaj kev tswj xyuas meej hauv A516 GR 70, muab P355GH me ntsis zoo dua corrosion nyob rau hauv ib puag ncig tshwj xeeb.
GNEE steel ua kom ntseeg tau tias ASTM A516 GR 70 ua tau raws li ASME SA516 GR 70 tus qauv, nrog rau kev kuaj xyuas cov tshuaj sib xws kom sib npaug rau EN P355GH. Yog xav paub ntxiv cov ntaub ntawv sib npaug, xa mus rau peb cov lus qhia ASME SA516 GR 70 Sib npaug qib.
Mechanical Properties: ASTM A516 GR 70 vs EN P355GH
Cov khoom siv kho tshuab ntawm ASTM A516 GR 70 thiab EN P355GH tau zoo sib xws, qhia txog lawv qhov tsim nyog rau kev siv lub nkoj siab. Cov lus hauv qab no sib piv lawv cov khoom tseem ceeb:
|
Khoom |
ASTM A516 GR 70 |
TS EN P355GH |
|---|---|---|
|
Tensile zog |
485-620 MPa (70-90 ksi) |
510-650 MPa |
|
Yield zog (min) |
260 MPa (38 ksi) |
355 MPa (rau thickness Tsawg dua lossis sib npaug li 16 hli) |
|
Elongation (min, 200 hli) |
17% |
20% |
|
Elongation (min, 50 hli) |
21% |
22% |
|
Hardness (HB, raug) |
140-200 HB |
150-220 HB |
|
Impact Toughness (Charpy V-notch) |
Ua tau raws li ASTM cov cai ntawm -46 degree |
27 J min ntawm -20℃(transverse) |
Qhov txawv tseem ceeb:
- Tensile zog: P355GH muaj lub zog tensile ntau dua me ntsis (510-650 MPa) dua li ASTM A516 GR 70 (485-620 MPa), tab sis qhov sib tshooj ua rau lawv sib piv rau feem ntau cov ntawv thov.
- Yield zog: P355GH qhov tsawg kawg nkaus yield zog (355 MPa rau Tsawg dua los yog sib npaug ntawm 16 hli thickness) yog siab tshaj A516 GR 70 (260 MPa), muab kev tiv thaiv zoo dua rau deformation hauv cov phaj nyias.
- Elongation: P355GH muaj me ntsis ductility (20–22% vs . 17–21%), pab formability.
- Impact Toughness: A516 GR 70 yog kuaj ntawm qhov kub qis (-46 degree), ua rau nws tsim nyog rau cov ntawv thov cryogenic, thaum P355GH qhov yuav tsum tau muaj (-20 degree) yog qhov nruj dua.
Kev kho cua sov yuav tsum tau ntawm
- A516 Gr.70: normalized los yog kev ntxhov siab -relieved, haum rau 200-400℃kev pab cuam.
- P355GHRaws li EN 10028-2, 400-500 degree
| Kev kho cua sov | A516 Gr.70 Kub (degree) | P355GH Kub (degree) | Lub hom phiaj | SHH STEEL Test |
| normalization | 900-950 | 880-950 | grain refinement | ASTM E112 grain loj |
| Kev ntxhov siab | 620-650 | 580-620 | Residual stress txo | ASME SA-20 |
Kev sib piv ntawm SA516 Gr70 thiab P355GH
Ob leeg steels yog siv rau hauv:
- Roj thiab Roj: Cia tso tsheb hlau luam thiab cov kav dej, nrog A516 Gr 70 nyiam rau lub siab lub nkoj steel phaj rau qaub roj ib puag ncig vim HIC kuaj.
- Petrochemical: Reactors thiab tshav kub exchangers.
- Lub zog tiam: Boilers thiab chav nruas.
Qhov txawv tseem ceeb: P355GH yog qhov ua kom zoo rau qhov kub siab (txog 400 degree), thaum A516 Gr 70 ua tau zoo nyob rau hauv qis- cov ntawv siv kub, feem ntau nrog NACE / HIC ua raws li cov roj qaub.
Cov khoom sib npaug ntawm ASTM A516 Gr 70 steel
EN 10028-2 P355GH suav hais tias yog sib npaug rau ASTM A516 Gr 70 hauv ntau daim ntawv thov, tab sis lwm cov qauv kuj ua raws:
|
Txuj |
Qib sib npaug |
|---|---|
|
ASTM / ASME |
A516 Gr 70 / SA516 Gr 70 |
|
TIAB SA 17155 |
19mn 6 |
|
JIS G3115 |
SPV355 |
|
GB/T 1591 |
Q345R |
Cov no EN 10028-2 P355GH sib npaug ASTM A516 Gr 70 qhov sib tw ua kom muaj kev sib raug zoo rau cov phiaj xwm thoob ntiaj teb.
Xaus
Qhov kev xaiv ntawm A516 Gr70 thiab P355GH nyob ntawm cov ntawv thov tshwj xeeb thiab kev txwv nyiaj txiag. Yog tias koj qhov phiaj xwm feem ntau xav tau cov hlau ua haujlwm nyob rau hauv cov pa siab thiab qhov kub thiab txias thiab yog tus nqi -sensitive, A516 Gr70 yog qhov kev xaiv zoo tshaj.
Txawm li cas los xij, yog tias koj qhov project cuam tshuam qhov kub thiab txias, lossis xav tau kev tiv thaiv corrosion, P355GH yog qhov kev xaiv zoo tshaj. Txawm hais tias P355GH nqa tus nqi siab dua, nws qhov kev ua tau zoo tshwj xeeb ua kom ntev - lub sijhawm ruaj khov thiab kev nyab xeeb.
A516 Gr70 thiab P355GH txhua tus muaj qhov zoo sib xws thiab cov npe thov. Tom qab nyeem tsab xov xwm no, tam sim no koj yuav tsum nkag siab tias cov hlau twg zoo tshaj plaws rau koj cov kev xav tau.
Ntawm GNEE STEEL, peb khaws cov khoom lag luam ntau ntawm ob qho tib si A516 Gr70 thiab P355GH, ua tiav los ntawm kev cai dov muaj peev xwm thiab kev ua haujlwm zoo. Qhov no ua rau peb teb sai sai rau ntau tus neeg xaj xaj, muab cov chaw ruaj khov thiab txhim khu kev qha nrog rau cov kev pabcuam kev txiav txim siab yav tom ntej. Yog tias koj muaj lus nug, thov tsis txhob yig tiv tauj peb txhua lub sijhawm.
Lub ntsiab siab lub nkoj steel qib ntawm GNEE steel yog A202, A203, A204, A285, A299, A302, A387, A515, A516, A517, A533, A537, A612, A662,A841; P235GH P265GH P295GHP355GH 16Mo3; P275NH P275NL1 P275NL2 P355N P355NH P355NL1 P355NL2 P460NH P460NL1 P460NL2;P355M P355ML1 P355ML2 P420M P420ML1 P420ML2 P460M P460ML1 P460ML2; P355Q P355QH P355QL1 P355QL2 P460Q P460QH P460QL1 P460QL2 P500Q P500QH P500QL1 P500QL2 P690Q P690QH P690QL1 P690QL2; SPV235 SPV315 SPV355 SPV410 SPV450 SPV490; SB410 SB450 SB480 SB450M SB480M; Q245R Q345R Q370R 18MnMoNbR 15CrMoR 14Cr1MoR 13MnNiMoR 12Cr2Mo1R 12Cr1MoVR; 16MnDR 15MnNiDR 09MnNiDR; HI HII 17Mn4 19Mn6 15Mo3 13CrMo44 10CrMo9-10 thiab lwm yam.
FAQ
1. Puas yog EN 10028-2 P355GH sib npaug rau ASTM A516 Gr 70?
Yog lawm, lawv sib npaug rau cov hlab ntsha siab, nrog P355GH haum rau qhov kub thiab txias dua thiab A516 Gr 70 rau qis dua.
2. Cov tshuaj muaj pes tsawg leeg ntawm ASTM A516 Gr 70 yog dab tsi?
Cov pa roj carbon ntau (tsawg dua lossis sib npaug li 0.31%) dua li P355GH, ib qho A516 Gr 70 tshuaj muaj pes tsawg leeg.
3. Dab tsi yog cov khoom siv kho tshuab ntawm A516 Gr 70?
Tawm ntawm 260 MPa, tensile 485-620 MPa, ib A516 GR 70 txhua yam khoom.
4. Dab tsi yog cov khoom sib npaug rau P355GH?
ASTM A516 Gr 70, JIS SPV355, EN 10028-2 P355GH sib npaug ASTM A516 Gr 70.
5. Kuv tuaj yeem yuav P355GH lossis A516 Gr 70 daim hlau nyob hauv Suav teb?
GNEE steel, lub chaw tsim khoom rau boiler zoo steel phaj rau roj thiab roj.
6. Tus nqi ntawm A516 Gr 70 lossis P355GH ib tuj yog dab tsi?
Hu rau GNEE steel rau quotes ntawm A516 Gr 70 phaj.
