Txheej txheem cej luam
ASTM A501 Cov Lus Qhia Tshwj Xeebyog tus qauv specification raukub- ua welded thiab seamless carbon steel structural tubingnyob rau hauv cov duab xws li square, rectangular, thiab round. Cov specification no yog engineered rau tej yaam num nyob qhov twgkhoom uniformity, siab -kev ua tau zoo, thiabsuperior weldabilityyog qhov tseem ceeb. Qhov kub- txheej txheem tsim, uas suav nrog shaping cov hlau ntawm qhov kub thiab txias, tsim cov khoom lag luam nrog cov khoom siv kho tshuab zoo ib yam li cov khoom kub -rolled structural shapes, ua rau nws yog ib qho kev xaiv rau kev tsim kho hnyav thiab cov qauv tsim ntau heev.
Txheem Specification
Qhov kev qhia tshwj xeeb no suav nrog cov xim dub thiab kub -dipped galva-nized kub- tsim welded thiab seamless carbon steel square, puag ncig, duab plaub, orspecial zoo structural tubing forwelded, riveted, los yog bolted kev tsim kho ntawm cov choj thiab lub tsev, thiab rau lub hom phiaj dav dav.
Qhov kev qhia tshwj xeeb no suav nrog peb qib: A, B, thiab C:
Qib A: Yam tsawg kawg nkaus tawm lub zog ntawm 38,000 psi (260 MPa)
Qib ntau yam nrog zoo heev formability thiab weldability, haum rau ntau yam kev siv cov qauv siv.
Qib B: Yam tsawg kawg nkaus tawm lub zog ntawm 45,000 psi (310 MPa)
Muab qhov sib npaug ntawm lub zog siab thiab zoo weldability, zoo tagnrho rau cov khoom hnyav hnyav thiab thav ntawv.
Qib C: Yam tsawg kawg nkaus tawm lub zog ntawm 49,000 psi (340 MPa)
Qib siab zog siab tshaj plaws, tsim los rau cov ntawv thov uas xav tau tshaj plaws uas ua kom muaj peev xwm ua haujlwm siab thiab txo qhov hnyav yog qhov tseem ceeb.
- Cov lus: Cov Khoom Siv Hluav Taws Xob tseem ceeb ntawm ASTM A501 Qib (Cov Nqi Tsawg) (Phaub Thickness hauv [mm] ＞ 1 [25] thiab Tsawg dua lossis sib npaug rau 2 [50])
| Qib | Yield zog (min) | Tensile zog (min) |
|---|---|---|
| A | 38,000 psi (260 MPa) | 58,000 psi (400 MPa) |
| B | 45,000 psi (310 MPa) | 65,000 psi (448 MPa) |
| C | 49,000 psi (340 MPa) | 70,000 psi (483 MPa) |
- Table: Chemical Composition Requirements (Maximum Percentage Values) (Kev Ntsuas Kub)
| Lub ntsiab | Qib A | Qib B, C |
|---|---|---|
| Cov pa roj carbon (C) | 0.26% | 0.22% |
| Manganese (Mn) | - | 1.40% |
| Phosphorus (P) | 0.035% | 0.030% |
| Sulfur (S) | 0.035% | 0.020% |
| Copper (Cu), thaum tooj liab tau teev tseg | 0.20% | 0.20% |
Qhov kub- txheej txheem tsim ua rau muaj ntau hom microstructure, uas, nrog rau qhov tshwj xeeb chemistry, muab A501 tubing nws kos npe cov khoom siv kho tshuab thiab tshwj xeeb tsim nyog rau fabrication.
Cov Khoom Siv Tseem Ceeb
ASTM A501 tubing muaj nyob rau hauv tib lub hauv paus zoo li A500, tab sis nws cov yam ntxwv ua tau zoo ua rau nws zoo tagnrho rau kev siv sib txawv:
- Square thiab Rectangular Tubing
Square thiab rectangular tubing yog tsim nrog cov rog ntawm 1 txog 16 nyob rau hauv, [25 mus rau 405 mm] thiab cov phab ntsa thickness 0.095 txog 1.0 in.[2.5 mus rau 25 mm].
Feem ntau siv nyob rau hauvhnyav -cov haujlwm thav duab, choj Cheebtsam, thiabindustrial platformsqhov twg nws cov khoom zoo ib yam kom ntseeg tau tias kev ua tau zoo nyob rau hauv kev thauj khoom tseem ceeb thiab txoj kev sib txuas welded.
- Round Tubing
Round tubing yog tsim nrog txoj kab uas hla ntawm l mus rau 48 nyob rau hauv. [25 mus rau 1220 mm] thiab ib tug tshwj xeeb wallthickness ntawm 0.095 mus rau 4.00 nyob rau hauv.[2.5 mus rau 100 mm].
Feem ntau teev raukab, compression cov tswv cuab, thiabhydraulic lossis mechanical applicationsqhov twg qhov sib xws ntawm cov khoom kub - tsim yog qhov zoo.
Daim ntawv thov
Covuniformity thiab weldabilityntawm ASTM A501 ua rau nws cov khoom ntawm kev xaiv rau kev siv nyuaj:
- Heavy Construction Projects: Main thav duab thiab kev txhawb nqa hauv cov tsev lag luam thiab cov chaw tsim khoom.
- Kev tsim kho choj: Cov tswv cuab tseem ceeb thiab theem nrab uas cov khoom siv hluav taws xob muaj zog thiab kev sib koom ua ke yog qhov tseem ceeb.
- Infrastructure thiab cov cuab yeej hnyav: Kev txhawb nqa rau cov tshuab hnyav, cov tshuab conveyor, thiab cov khoom siv mining.
- Welded Trusses thiab Chaw Ncej: Cov qauv yuav tsum muaj ntau yam kev ntseeg siab, siab -lub zog welds.
A501 Qib Kev Qhia Qhia
Xaiv cov qib uas tsim nyog ua kom cov txiaj ntsig tau zoo tshaj plaws:
- Xaiv Qib A rau: Cov qauv dav dav uas weldability thiab formability yog qhov tseem ceeb tshaj li ultra-siab zog.
- Xaiv Qib B rau: Feem ntau ntawm cov khoom siv hnyav uas yuav tsum tau muaj pov thawj sib npaug ntawm lub zog siab thiab kev yooj yim fabrication.
- Xaiv Qib C rau: Cov ntawv thov tseem ceeb uas ua kom muaj zog thiab txo cov khoom hnyav ncaj qha cuam tshuam txog kev nyab xeeb thiab kev lag luam.
Txhawm rau sib piv ASTM A501 nrog ASTM A500 thiab txiav txim siab qhov kev xaiv zoo tshaj plaws rau koj qhov kev xav tau tshwj xeeb, tshawb xyuas peb cov ncauj lus kom ntxaws sib piv: [ASTM A500 vs. ASTM A501: Daim Ntawv Qhia Kom Paub Txog Cov Hlau Hlau Tubing].
Txhawm rau kawm txog nws qhov txias -tsim tus khub, tshawb xyuas peb cov ntawv tshwj xeeb ntawm [ASTM A500: Phau Ntawv Qhia Txog Txias -Tsim Cov Hlau Tubing].
