ASTM A500 1- Txuj Specification rau Txias- tsim Welded thiab Seamless Carbon Steel Structural Tubing nyob rau hauv Round, Square Tube thiab Rectangular Tube Shapes.
ASTM A500 steel kav yuav raug rau feem ntau ntawm cov kev ua haujlwm li niaj zaus. Ductility yog qhov zoo. Nws khoov tau zoo, flattens, txiav, xuas nrig ntaus, flares thiab flanges yooj yim, thiab tuaj yeem welded los ntawm kev siv - siv cov tswv yim thiab kev coj ua.
Qhov ntau thiab tsawg:
Round tube: OD: 6.35 ~ 660mm WT: 1.27 ~ 25.4mm
Square tube: Sab Ntev: 25 × 25 ~ 500 × 500mm WT: 2 hli ~ 16 hli
Rectangular Tube: Sab Ntev: 50 × 25 ~ 500 × 300mm WT: 1.2 hli ~ 18 hli
Standard ntev: 6m, 12m (customizable 5.8m, 4m, thiab lwm yam)
Qib qeb:
ASTM A500 steel raj muab faib ua plaub qib: A, B, C, D raws li cov khoom siv kho tshuab. Cov qib sib txawv yog tsim nyog rau cov qauv kev xav tau ntawm qhov sib txawv muaj zog:
| Qib | Yield zog (MPa) | Tensile zog (MPa) | Elongation (%) | Hom kev siv |
| Qib A | Ntau dua lossis sib npaug li 228 | Ntau dua lossis sib npaug rau 310 | Ntau dua lossis sib npaug li 25 | Lub teeb qauv, dav lub tsev ncej |
| Qib B | Ntau dua lossis sib npaug li 290 | Ntau dua lossis sib npaug li 400 | Ntau dua lossis sib npaug 23 | Lub tsev, kev txhawb nqa txhua yam (feem ntau siv) |
| Qib C | Ntau dua lossis sib npaug rau 317 | Ntau dua lossis sib npaug rau 427 | Ntau dua lossis sib npaug li 21 | Cov qauv hnyav, txuas hniav |
| Qib D | Ntau dua lossis sib npaug li 250 | Ntau dua lossis sib npaug li 400 | Ntau dua lossis sib npaug 23 | Round raj xav tau kev kho cua sov |
- Qib A: Cov ntsiab lus carbon tsawg, nrog rau qee yam kev xav tau ntawm lub zog, haum rau qee qhov kev siv cov qauv uas tsis tas yuav muaj zog tshwj xeeb.
- Qib B: Piv nrog rau Qib A, lub zog tau txhim kho, thiab nws tuaj yeem siv rau cov khoom siv uas muaj zog dua.
- Qib C: Cov ntsiab lus carbon siab, siab zog, durability thiab zoo toughness, haum rau cov qauv nrog cov khoom loj.
- Qib D: Cov ntsiab lus carbon ntau dua, kev kho cua sov yuav tsum ua kom tau raws li qhov yuav tsum tau muaj zog dua thiab tawv, feem ntau yog siv rau hauv cov khoom siv nrog cov khoom siv nruj heev. Rau cov raj square thiab cov duab plaub, qhov kev xav tau ntawm lub zog ntawm txhua qib yog siab dua cov raj puag ncig.
Cov lus qhia xaiv qib:
Qib B: Nws yog qib feem ntau siv, haum rau feem ntau cov tsev thiab cov khoom siv tshuab.
Qib C: Haum rau siab - cov qauv thauj khoom xws li txuas hniav thiab cov khoom siv hnyav txhawb nqa.
Qib D; Feem ntau yog siv rau cov raj puag ncig uas xav tau kev kho cua sov los txhim kho lub zog thiab toughness.
ASTM A500 Qib B:
Daim ntaub ntawv: thav duab, yob tawb, tsheb racks, trailers, railings, thiab lwm yam.
Workability: Yooj yim rau Weld, Txiav, Daim Ntawv thiab Tshuab
Mechanical Properties: Brinell=63, Tensile=58, 000 +/-, Yield=46, 000 +/-
Qhov ntau thiab tsawg
|
Cov yeeb nkab loj |
OD (inch) |
Teem caij 10 |
Txuj |
Teem caij 40 |
XH |
Teem caij 80 |
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¾" |
1.05 |
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1" |
1.315 |
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1 ¼" |
1.66 |
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1 ½" |
1.9 |
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2" |
2.375 |
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2 ½" |
2.875 |
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3" |
3.5 |
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3 ½" |
4 |
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4" |
4.5 |
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5" |
5.563 |
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6" |
6.625 |
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8" |
8.625 |
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10" |
10.75 |
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12" |
12.75 |
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14" |
14 |
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16" |
16 |
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18" |
18 |
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20" |
20 |
Muaj nyob rau hauv lub sijhawm 10, 20 thiab 30. |
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Hom tshuaj muaj pes tsawg leeg:
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Qib B |
Qib C |
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Cov pa roj carbon ntau, % |
0.260 |
0.230 |
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Manganese, max% |
---- |
1.350 |
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Phosphorus, Max% |
0.035 |
0.035 |
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Sulphur, max% |
0.035 |
0.035 |
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Tooj liab, thaum tooj liab tau teev tseg, Min% |
0.200 |
0.200 |
Cov yam ntxwv mechanical zog:
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Qib B |
Qib C |
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Tensile zog, Min psi |
58,000 |
62,000 |
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Yield zog, Min psi |
46,000 |
50,000 |
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Elongation hauv 2 "Min |
23%* |
21%** |
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*.180" phab ntsa thiab tshaj |
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**.120" phab ntsa thiab tshaj |
Qhov txawv:
ASTM A500 round tube, ASTM A500 square tube thiab ASTM A500 lub raj raj tsis txawv ntawm cov khoom siv thiab kev ua haujlwm, feem ntau yog qhov sib txawv ntawm tus ntoo khaub lig- cov duab thiab siv.
1. Cov kav dej square feem ntau yog siv rau hauv kev tsim kho thiab tshuab tsim kev lag luam.
2. Rectangular raj yog dav siv los ua lub raj xa dej thiab tsim cov khoom siv kho tshuab thiab cov qauv tsim hluav taws xob, phom thiab phom.
3. Muab piv nrog lub raj puag ncig, lub raj square muaj lub zog compressive siab, tsis muaj qhov hnyav, thiab ntau yam kev siv.
Kev tsim khoom:
Nws tuaj yeem tsim los ntawm cov txheej txheem seamless lossis txias sib sau vuam (ERW) txheej txheem.
Kev xeem yuav tsum tau muaj: suav nrog tensile xeem, dabtsi yog khoov kuaj, thiab lwm yam, thiab tej daim ntawv thov yuav tsum muaj tej yam toughness xeem.
Tshuaj muaj pes tsawg leeg: Cov ntsiab lus ntawm cov ntsiab lus xws li carbon, manganese, phosphorus, sulfur, tooj liab, thiab lwm yam tau teev tseg los xyuas kom meej tias kev ua tau zoo ntawm cov hlau ua tau raws li qhov yuav tsum tau ua ntawm qib sib thooj.
Marking thiab ntim:
Nws yog qhov yuav tsum tau muab cov khoom tsim, qib steel, specification, batch tooj thiab lwm yam ntaub ntawv yuav tsum tau cim rau ntawm cov yeeb nkab kom yooj yim traceability thiab tswj. Lub ntim yuav tsum muaj peev xwm tiv thaiv cov yeeb nkab los ntawm kev puas tsuaj thiab corrosion thaum thauj thiab khaws cia.
Tej kev siv:
Lub tsev qauv: siab-nce lub tsev ncej, steel qauv Hoobkas lub tsev.
Choj engineering: kev txhawb nqa qauv, kev sib dhos truss.
Machinery manufacturing: engineering machinery ncej, conveying khoom.
Infrastructure: tunnel kev them nyiaj yug, chaw thauj mus los.
ASTM A500 1yog tus qauv tseem ceeb rau cov qauv carbon steel kav, haum rau kev thauj khoom -cov kabmob xws li cov tsev thiab cov txuas hniav. Nws cov txheej txheem txias txias thiab cov qauv tsim muaj zog ua rau nws siv dav hauv engineering.
