Yam Phaj Hlau Koj Yuav Tsum Xaiv rau Koj Qhov Haujlwm?
Cov neeg yuav khoom hlau thiab cov kws tsim khoom feem ntau ntsib qhov kev txiav txim siab tseem ceeb: qib steel twg zoo tshaj plaws rau lawv daim ntawv thov -cov qauv, lub nkoj siab, lossis kev tsim khoom?Phau ntawv qhia no qhia meej meej, ntawm -ib - saib kev sib piv ntawm cov pa roj carbon steel feem ntau -ASTM A36, A283, A572 Qib 50, thiab A516 Qib 70-tshwj xeeb tshaj yog thaum sib pivA36 vs A572los yogA516 vs A36rau cov kev xav tau ntawm qhov project.
Cov qhab nia sib piv
1) ASTM A516 vs A 36 - Koj Yuav Tsum Siv Dab Tsi?
| Feature | A516 Gr.70 | A36 |
|---|---|---|
| Tsim Rau | Cov hlab ntsha, boilers, tanks | General lug, ncej |
| Lub zog | Siab tensile thiab cuam tshuam toughness | Cov qauv tsim muaj zog |
| Thaum tshav kub kub/siab haum | ✅ Yog | ❌ Tsis tsim los rau siab |
Txoj Cai Tseem Ceeb: A516 tsis tuaj yeem hloov nrog A36hauvboilers, siab hlab ntsha, los yog tank fabricationvim muaj kev tswj xyuas thiab kev nyab xeeb.
Siv Cov Kev Txiav Txim Siab:
Cia tso tsheb hlau luam lossis chav dej / cua sov ib puag ncig → A516 Gr.70
Lub tsev thav duab, kev txhawb nqa → A36
2) ASTM A569 vs A{2}} Qhov txawv tiag tiag
A569 = Kub-rolled carbondaim ntawv(tsawg carbon, hloov tau yooj yim)
A36 = Cov qauv tsimphaj(siab dua cov qauv siv)
Lawv tsis sib hloov nyob rau hauv mechanical zog.
Thaum hloov pauv tuaj yeem lees txais:
Lub teeb- ntsuas kev ua haujlwm uas lub zog tsis yog qhov yuav tsum tau ua.
Thaum koj yuav tsum siv A36:
Ib qhoload-cov kabmob lossis cov khoom siv welded.
3) ASTM A283 Qib C vs A 36 - Nws Puas Hloov A36?
A283 Gr.Cmuajqis yield zogtshajA36.
Nws tuaj yeem siv los ua ib qhonqi-tsav lwm txoj kevhauvtsis yog - tseem ceebcov qauvtsis muaj vuam hnyav los yog thauj khoom hnyav.
Safety Note:
RauCov kab hluav taws xob, cov khoom thauj khoom, lossis kev nyab xeeb -tseem ceeb engineering, A36 tseem yog qhov kev xaiv nyab xeeb dua.
4) A36 vs A572 Qib 50 - Lub zog thiab qhov hnyav
A572 Gr.50yield zog ≈345 MPa rau
A36yield zog ≈250 MPa
Qhov txawv no txhais tau tiasqhov hnyav txo ntawm kwv yees li . 10–20%rau tib lub peev xwm load.
Pom zoo:
Rautxuas hniav, cranes, ntauwd qauv, ntev - ncua kab → Xaiv A572 Gr.50.
Mechanical Properties Sib piv
Siv lub rooj no rau sab nrawm -los ntawm - sab piv ntawm cov qib tseem ceeb. Tus nqi yog qhov tsawg kawg nkaus lossis qhov ntau.
| Qib Steel | Yield zog (MPa) | Tensile zog (MPa) | Elongation (%) | Daim ntawv thov |
|---|---|---|---|---|
| ASTM A36 | Ntau dua lossis sib npaug li 250 | 400–550 | Ntau tshaj los yog sib npaug rau 20 | General structural fabrication |
| ASTM A283 Gr. C | Ntau dua lossis sib npaug rau 205 | 380–510 | Ntau dua lossis sib npaug 22 | Tsawg- carbon steel rau tsis yog - qauv tseem ceeb |
| ASTM A516 Gr 1. | Ntau dua lossis sib npaug li 260 | 415–585 | Ntau dua lossis sib npaug li 21 | Cov hlab ntsha siab, lub tank |
| ASTM A516 Gr 1. | Ntau dua lossis sib npaug li 260 | 485–620 | Ntau dua lossis sib npaug li 21 | Cov hlab ntsha siab, cua sov exchangers |
| ASTM A572 Gr 1. | Ntau dua lossis sib npaug rau 345 | 450–620 | Ntau dua lossis sib npaug li 18 | Cov choj, cranes, kev tsim kho |
| ASTM A572 Gr 1. | Ntau dua lossis sib npaug li 450 | 550–710 | Ntau dua lossis sib npaug li 17 | Kem, cov tsev lag luam |
Ntiaj teb no Standard Equivalents
Tseem ceeb:Cov lus hauv qab no muabkwv yees sib npaugrau cross-reference. Nco ntsoov tham txog qhov project specifications thiabtiv tauj peb pab neeg technical rau kev pom zoo hloov cov khoom zaum kawg.
| ASTM Txuj | Qib | Kwv yees li. EN sib npaug | EN Standard Hom | Sau ntawv |
|---|---|---|---|---|
| ASTM A36 | – | S235 JR | TS EN 10025-2 Cov Khoom Siv Hluav Taws Xob | Qhov sib npaug ze tshaj plaws nyob rau hauv mechanical zog |
| ASTM A 283 3 | Qib C | S235 JRlos yogS275 JR | TS EN 10025-2 | Nyob ntawm thickness thiab daim ntawv thov cov ntsiab lus |
| ASTM A516 Cov Lus Qhia Tshwj Xeeb | Qib 60 | P265GH / P295 HWM | TS EN 10028-2 Lub Nkoj Siab | Siv nyob rau hauv boilers thiab siab hlab ntsha |
| Qib 70 | P355GH / 16 hmo 3 | TS EN 10028-2 | Feem ntau siv rau siab dua / kub | |
| ASTM A572 Cov Lus Qhia Tshwj Xeeb | Qib 50 | S355 JR / S355 NL | EN 10025-2 / -3 | Lub zog muaj zog sib npaug |
| Qib 65 | S460 NL | TS EN 10025-3 | Heavy-cov haujlwm ua haujlwm ntawm cov ntawv thov |
Qib-Cov ntsiab lus tshwj xeeb
ASTM A516 Hlau Phaj (Qib 55-70)
Cov Khoom Tseem Ceeb: Siab hlab ntsha zoo (PVQ) carbon steel. Notch toughness yog cov khoom tseem ceeb.
Chemical Composition (Max % – Qib 70): C Tsawg dua lossis sib npaug rau 0.30, Mn 0.79–1.30, P Tsawg dua lossis sib npaug 0.035, S Tsawg dua lossis sib npaug 0.035
Daim ntawv thov: Boilers, siab hlab ntsha, cia tank rau roj thiab tshuaj.
Qib sib npaug: Gr.70 ≈ EN P355GH, JIS SB410.
ASTM A572 Hlau Phaj (Qib 42-65)
Cov Khoom Tseem Ceeb: Siab -Lub Zog Tsawg-Alloy (HSLA) steel. Muab lub zog ntau dua - rau - qhov hnyav piv li A36.
Chemical Composition (Max % – Qib 50): C Tsawg dua lossis sib npaug rau 0.23, Mn Tsawg dua lossis sib npaug rau 1.35, P Tsawg dua lossis sib npaug rau 0.035, S Tsawg dua lossis sib npaug 0.040
Daim ntawv thov raug: txuas hniav, crane booms, kis tau tus yees, siab -nce vaj tse.
Qib sib npaug: Gr.50 ≈ EN S355JR, Gr.65 ≈ EN S460NL.
ASTM A283 Hlau Phaj (Qib A-D)
Cov Khoom Tseem Ceeb: Tsawg- carbon steel phaj nrog zoo formability, siv rau qis dua - daim ntawv thov zog.
Chemical Composition (Max % – Qib C): C Tsawg dua lossis sib npaug rau 0.24, Mn Tsawg dua lossis sib npaug rau 0.90, P Tsawg dua lossis sib npaug rau 0.035, S Tsawg dua lossis sib npaug rau 0.040
Daim Ntawv Thov: Cov khoom siv dav dav dav dav, tso tsheb hlau luam, tsis yog - qhov tseem ceeb ntawm cov qauv.
Qib sib npaug: Zoo ib yam li EN S235JR, JIS SS330.
ASTM A36 Hlau Phaj
Cov Khoom Tseem Ceeb: Zoo heev weldability thiab machinability. Qhov feem ntau dav - hom phiaj steel.
Chemical Composition (Max %): C Tsawg dua lossis sib npaug rau 0.26, Mn 0.60–0.90, P Tsawg dua lossis sib npaug rau 0.04, S Tsawg dua lossis sib npaug rau 0.05
Daim ntawv thov: Lub tsev thav duab, txuas hniav, khoom siv hauv paus, kev tsim khoom dav dav.
Qib sib npaug: EN S235JR, JIS SS400, GB Q235B
Yuav Ua Li Cas Xaiv Txoj Cai Hlau Phaj Qib?
Thaum xaiv ib qeb, xav txog:
Yuav Tsum Muaj Zog & Kev Thov:Cov qauv (A36, A572) vs. Siab Vessel (A516).
Weldability & Fabrication Xav Tau:A36 yog qhov yooj yim tshaj; A516 xav tau cov txheej txheem tshwj xeeb.
Txoj Cai Ua Raws Cai:Yuav tsum ua raws li qhov project specs (ASTM, EN, thiab lwm yam).
Kev ua haujlwm ib puag ncig:Kub, kev nyuaj siab, thiab raug tej yam kev mob.
Kev Qhia Yooj Yim:
Rau boilers, tank, thiab pressurized systems:QhiaA516 Gr. 60/70.572s355 ib. Ntawm qhov tod tes,siab hlab ntsha manufacturersfeem ntau xaivA516 lossis A387 alloy steel daim hlau.
Rau kev tsim kho & ncej:Pib nrogA36.
Rau lub zog siab dua yam tsis muaj nqi alloy:XaivA572 Gr. 50/55.
Xaus
Nkag siab qhov sib txawv ntawm cov qib zoo liASTM A36, ASTM A283, ASTM A572 Qib 50, thiab ASTM A516 Qib 70-thiab paub thaum twg los xaiv ntawmA36 vs A572los yogA516 vs A36-yog qhov tseem ceeb rau kev txhim kho koj qhov project tus nqi, kev ua tau zoo, thiab kev ua raws.
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email raualloy@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
FAQ
Q: Dab tsi yog EN sib npaug ntawm A36 Steel?
A: Qhov ze tshaj EN sib npaug rau ASTM A36 yog S235JR hauv qab EN 10025-2. Ob leeg muab cov txiaj ntsig zoo sib xws (~ 250 MPa) thiab feem ntau siv rau hauv kev siv cov qauv siv. Qee zaum engineers kuj nug txog A36 steel sib npaug hauv JIS lossis GB qauv, uas yog SS400 thiab Q235B feem.
Q: Puas yog A572 Qib 50 Zoo ib yam li S355JR?
A: ASTM A572 Gr.50 feem ntau suav hais tias yog sib npaug rau S355JR hauv EN cov qauv, nrog rau qhov sib piv ntawm lub zog (~ 345 MPa). Txawm li cas los xij, cov ncauj lus kom ntxaws txog kev siv tshuab thiab tshuaj lom neeg yuav txawv me ntsis. Ib txwm paub meej nrog qhov project specifications.
Q: Kuv puas tuaj yeem siv P355GH hloov A516 Gr.70?
A: Yog, P355GH (EN 10028-2) tau txais dav raws li EN sib npaug ntawm A516 Qib 70, tshwj xeeb tshaj yog rau kev siv lub nkoj siab. Ob qho tib si muaj lub zog tensile zoo sib xws thiab kev sib tw toughness.
Q: Qhov txawv ntawm A516 Gr.70 Thiab A572 Gr.50 yog dab tsi?
A: A516 Gr.70 yog lub siab lub nkoj steel, thaum A572 Gr.50 yog siab - lub zog steel. Lawv tsis yog interchangeable. Siv A516 rau boilers thiab tso tsheb hlau luam; siv A572 rau txuas hniav, ncej, lossis cranes.
Q: Yog A283 Gr. C Zoo li A36?
A: Yog lawm, A283 Qib C thiab A36 yog ob qho tib si carbon steels siv rau kev tsim qauv. A36 muaj zog dua me ntsis thiab feem ntau siv rau hauv kev tsim kho niaj hnub no.
Q: Dab tsi yog qhov sib npaug ntawm A572 Qib 65 Hauv EN Standard?
A: ASTM A572 Gr.65 roughly sib raug rau S460NL nyob rau hauv EN 10025-3, uas muaj zoo sib xws high yield zog rau xav tau cov qauv siv xws li yees thiab choj.
Q: Puas A283 Gr.C Hloov A36 Hauv Kev Tsim Kho?
A: Hauv qee qhov tsis yog{0}} daim ntawv thov tseem ceeb, A283 Gr.C yuav raug siv los ua tus nqi qis - lwm tus nqi rau A36. Txawm li cas los xij, nws lub zog qis dua yuav tsis ua raws li cov txheej txheem niaj hnub no. Nco ntsoov xyuas cov qauv engineering.
Q: Puas yog ASTM A569 Zoo ib yam li A36?
A: Tsis yog A569 vs A36 yog cov lus nug ntau. A569 yog ib daim ntawv kub -rolled carbon steel, thaum A36 yog cov qauv hlau phaj. Lawv txawv nyob rau hauv mechanical zog thiab npaj siv.
Q: Qhov txawv ntawm S355JR thiab S355NL yog dab tsi?
A: Ob leeg koom nrog EN 10025 series, tab sis S355NL yog cov hlau tsis muaj zog uas zoo dua qis dua -kub toughness dua S355JR. Rau cov huab cua txias lossis cov ntawv thov tseem ceeb, S355NL nyiam dua.
| Lwm cov hlau phaj | ||||
| Lub npe | Khoom siv | Specification (hli) | Tos | Lus ceeb toom |
| Clad steel phaj | P265GH+410,S355JR+410,A516Gr70+316, A537CL1+304L,Q235B+304L,Q345B+304, A516Gr70(NACE)+410,A537CL1+904L, A537CL1+316L,A516Gr70+304L,A537CL1+304 ,A516Gr70+410,A516Gr70+904L |
2-300mm (raws li phaj), 1-50mm (Composited phaj) | / | UT, AR, TMCP.Normalized, Quenched thiab Tempered, Z Direction Test, Charpy V-Ntch impact TestThe Third Party Test, Coated or Shot Blasting and Painting. |
| Tsawg Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SAG281G, SAG281G SA387Gr22, P265, P295, P355GH, Q245R(R-HIC), Q345R(R{30}}HIC) | 3 - 300 | 8650 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Siab -Plate muaj zog | WH785D/E,Q960D/E,Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched thiab tempered |
| Hnav-Resistant Phaj | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched thiab tempered |
| Choj Phaj | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Kub dov, normalized, kub dov tswj dov, quenched thiab tempered + toughness thiab brittleness |
