Tianjin Brisk Metalwork Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm astm a500 qib b structural hollow seem hauv Suav teb. Peb muaj lub ntiaj teb- cov cuab yeej tsim khoom thiab muaj peev xwm tsim tau zoo. Thov koj xav tias dawb mus yuav cov khoom ruaj khov astm a500 qib b structural hollow seem los ntawm peb lub hoobkas.
Tianjin Brisk Steel yog ib qho ntawm cov tuam ntxhab ntawm ASTM A500 Qib B Cov Qauv Hollow Tshooj hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv yuav khoom.
Mechanical Properties: Vim li cas Qib B yog qhov kev xaiv zoo
Cov khoom vaj tse hauv qab no qhia txog yam tsawg kawg nkaus uas yuav tsum tau muaj nyob rau hauv tsab ntawv tam sim noASTM A500 1; ib txwm lees paub tawm tsam daim ntawv ntsuam xyuas zeb rau cov cua sov tshwj xeeb, vim qhov tseeb qhov tseem ceeb feem ntau tshaj qhov tsawg kawg nkaus los ntawm qhov muaj txiaj ntsig zoo.
| Khoom | Round HSS, Qib B | Puab (Square/Rectangular) HSS, Qib B |
|---|---|---|
| Yam tsawg kawg nkaus Yield Strength | 42,000 psi (290 MPa) | 46,000 psi (315 MPa) |
| Yam tsawg kawg Tensile Strength | 58,000 psi (400 MPa) | 58,000 psi (400 MPa) |
| Tsawg kawg Elongation | 23% (hauv 2 nti) | 23% (hauv 2 hauv.), nws txawv me ntsis ntawm phab ntsa thickness |
Muab piv rau Qib A (qis zog, zoo dua formability, tsawg dua hauv cov qauv kev ua haujlwm), Qib C (siab dua lub zog - 50,000 psi yam tsawg kawg nkaus tawm los rau seem zoo li tus - nrog rau cov chemistry nruj dua uas txhim kho toughness), thiab Qib D (qhov tsawg tshaj plaws, siv qhov siab dua elongation yuav tsum muaj zog dua). Hauv kev xyaum, Qib B tau dhau los ua tus qauv de facto vim nws muaj qhov zoo tshaj plaws sib npaug ntawm lub zog, weldability, thiab tus nqi rau feem ntau ntawm lub tsev thiab cov khoom siv siv - bracing cov tswv cuab, txhua kab, truss chords, thiab platform framing tsis tshua xav tau dab tsi txawv dua.
Tshuaj muaj pes tsawg leeg
Qib B's chemistry yog khaws cia zoo ib yam los khaws cov weldability thiab txias - ua tus cwj pwm:
- Carbon: 0.26% siab tshaj
- Manganese: 1.35% siab tshaj
- Phosphorus: 0.035% siab tshaj
- Sulfur: 0.035% siab tshaj
- Copper: 0.20% yam tsawg kawg nkaus, thaum tooj liab -cov kabmob tau teev tseg
Qhov kev sib xyaw no ua rau cov pa roj carbon sib npaug tsawg txaus uas qhov vuam tsis tshua muaj cov txheej txheem preheat tshwj xeeb ntawm cov phab ntsa tuab, uas yog ib qho ntawm cov laj thawj uas cov fabricators nyiam Qib B ntau dua -carbon lwm txoj kev.
Dimensional Range thiab Tolerances
A500 Qib B yog tsim tawm thoob plaws lub hnab ntawv dav dav:
- Round HSS: feem ntau yog li ntawm 0.54 in. (13.7 mm) sab nraud txoj kab uas hla mus txog 20 in. (508 mm) thiab loj dua rau cov neeg tsim khoom tshwj xeeb, nrog phab ntsa thicknesses feem ntau ntawm 0.065 in. thiab 0.625 in.
- Square thiab Rectangular HSS: ntau qhov ntau thiab tsawg los ntawm roughly 2 × 2 in. mus txog 20 × 12 in. lossis loj dua, dua nyob ntawm lub zeb.
Sab nraum qhov ntev kam rau ua, phab ntsa tuab tolerances, ncaj, thiab twist yog tag nrho cov tswj los ntawm tus qauv, thiab mills muab ntawv pov thawj zeb xeem ntawv qhia (MTRs) uas sau cov chemistry thiab mechanical tshwm sim rau txhua qhov kub thiab ntau - ib txwm thov cov no rau cov qauv kev ua haujlwm, txij li lawv feem ntau xav tau rau cov ntaub ntawv ua raws cai.
Tej kev siv
Vim tias Qib B ua kom muaj zog txaus nrog kev tsim kho tau zoo thiab weldability, nws tshwm sim hauv ntau qhov kawg ntawm kev siv:
- Lub tsev structural framing- kem, braces, thiab lub ru tsev / pem teb txhawb cov tswv cuab hauv qis-nce thiab nruab nrab- nce kev tsim kho
- Choj thiab txoj kev loj- kos npe rau kev txhawb nqa, guardrail posts, thiab cov neeg txuas ntxiv txuas ntxiv
- Industrial platforms thiab khoom thav duab- machinery bases, conveyor kev txhawb nqa, cov khoom tuav cov qauv
- Architectural thiab nthuav cov yam ntxwv- canopies, railings, thiab feature txhua kab uas huv, tsis xws li profile ntawm HSS yog ib feem ntawm lub hom phiaj tsim
- Agricultural thiab general fabrication- trailer, rooj vag, thiab dav - lub hom phiaj welded sib dhos
FAQ
Q: Qhov txawv ntawm ASTM A500 Qib B thiab Qib C yog dab tsi?
A: Qib C muaj qhov muaj zog tsawg dua qhov ua tau zoo (50,000 psi rau cov seem zoo li 46,000 psi rau Qib B) thiab cov tshuaj muaj zog nruj dua uas feem ntau txhim kho qhov tawv tawv. Qib C raug nqi me ntsis ntxiv thiab tsis tau ntim khoom thoob ntiaj teb raws li Qib B, yog li nws feem ntau tau teev tseg tsuas yog thaum xav tau lub zog siab dua los txo qhov loj me lossis qhov hnyav.
Q: ASTM A500 Qib B hollow seem puas tuaj yeem welded yam tsis muaj preheat?
A: Nyob rau hauv feem ntau tus qauv phab ntsa thicknesses thiab nyob rau hauv ib txwm ambient tej yam kev mob, Qib B qhov tsawg carbon sib npaug tso cai welding yam tsis preheat siv cov txheej txheem vuam txheej txheem. Txawm li cas los xij, cov phab ntsa hnyav dua, cov huab cua txias, lossis cov txheej txheem vuam tshwj xeeb tseem tuaj yeem hu rau preheat - qhov no yuav tsum tau lees paub tiv thaiv koj qhov phiaj xwm vuam txheej txheem specification (WPS), tsis yog los ntawm cov khoom siv hauv paus ib leeg.
Q: Puas yog ASTM A500 Qib B haum rau kev siv sab nrauv lossis ntug hiav txwv?
A: Cov khoom siv hauv paus nws tus kheej tsis muaj kev tsim - nyob rau hauv corrosion kuj tshaj li cov pa roj carbon zoo tib yam. Rau sab nrauv, ntug hiav txwv dej, lossis lwm yam kev pabcuam corrosive, Qib B HSS feem ntau yog kub-dip galvanized rau ASTM A123 lossis tiv thaiv nrog cov txheej txheem txheej tsim nyog; cov pob zeb liab qab yog npaj rau kev siv sab hauv lossis lwm yam kev tiv thaiv.
Q: Dab tsi yog qhov txawv ntawm puag ncig HSS thiab cov duab plaub / square HSS hauv Qib B?
A: Ob qho tib si los ntawm tib lub hauv paus specification, tab sis zoo li tus (square/rectangular) seem muaj qhov tsawg kawg nkaus yield zog tshaj cov seem puag ncig vim yog cov hauj lwm txias ntxiv qhia thaum lub round raj re- ua rau hauv ib lub square lossis duab plaub. Raws li cov qauv, cov seem puag ncig feem ntau nyiam rau torsion- cov tswv cuab tseem ceeb, thaum cov duab plaub thiab cov square feem ntau muaj qhov sib txuas ntawm lub ntsej muag yooj yim rau vuam gusset daim hlau thiab framing kev sib txuas.
Cim npe nrov: Tuam Tshoj astm a500 qib b structural hollow seem, Tuam Tshoj astm a500 qib b structural hollow seem manufacturers, lwm tus neeg, Hoobkas
