Dab tsi yog astm a500 qib c hollow seem
ASTM A500 Qib C hollow structural raj yog siab - lub cev muaj zog carbon steel raj ua los ntawm txias dabtsi yog khoov raws li Asmeskas cov qauv. Nws yog tshwj xeeb tsim los rau hnyav- lub luag haujlwm lub tsev thav duab, kev txhawb nqa choj thiab lwm yam kev thauj khoom- cov xwm txheej kabmob.
A500 GrC hollow seem specification
1. Sab Length Range:
- Cov raj me me: 1/2 nti (12.7mm) - 4 ntiv tes (101.6mm), feem ntau yog siv rau rooj tog thiab cov khoom siv zoo nkauj.
- Nruab nrab square tubes: 5 nti (127mm) - 8 ntiv tes (203.2mm), haum rau kev tsim cov ntaub thaiv phab ntsa thiab kev txhawb nqa tshuab.
- Loj square tubes: 10 nti (254mm) thiab saum toj no, feem ntau yog siv rau cov choj thiab cov hlau hnyav.
2. Phab ntsa Thickness Parameters: Txheem phab ntsa thickness txawv ntawm 0.065 nti (1.65mm) txog 0.5 nti (12.7mm). Piv txwv li: - Cov phab ntsa tuab rau 2 × 2 nti square tubes yog 1/8 nti (3.2mm) thiab 3/16 nti (4.8mm). - Phab ntsa thicknesses rau 6 × 6 nti square tubes feem ntau yog 1/4 nti (6.4mm) thiab siab dua.
3. Cov qauv kev kam rau siab: - Sab ntev kam rau ua: ± 0.5% lossis ± 0.01 ntiv tes (qhov twg yog qhov ntau dua). - Phab ntsa tuab kam rau ua: ± 10% (rau phab ntsa thickness ntau dua lossis sib npaug rau 0.9mm). - Ntev ntev: nyob rau hauv ± 1.28 nti ().
Kev xav tau tshuaj lom neeg ntawm ASTM A500 Qib C
| Element | ASTM A500 Qib C |
|---|---|
| Kev tshuaj xyuas khoom | |
| Cov pa roj carbon, max | 0.27 |
| Manganese, max | 1.4 |
| Phosphorus, max | 0.045 |
| Sulfur, max | 0.045 |
| Tooj, thaum tooj liab tau teev tseg, min | 0.18 |
| a. ASTM A500 Qib C Cov Khoom rau txhua qhov txo qis ntawm 0.01 feem pua hauv qab qhov siab tshaj plaws rau cov pa roj carbon monoxide, nce ntawm 0.06 feem pua ntawm cov ntsiab lus siab tshaj qhov siab tshaj plaws rau manganese tau tso cai, mus txog qhov siab tshaj ntawm 1.50% los ntawm kev ntsuas cua sov thiab 1.60% los ntawm kev tshuaj xyuas cov khoom. | |
| b. Yog tias tooj liab - muaj cov hlau tau teev nyob rau hauv daim ntawv xaj yuav khoom. | |
ASTM A500 Gr.C Carbon Steel Mechanical Properties
| ASTM A500 Gr. C khoom | ||
|---|---|---|
| Phab ntsa Thickness | ±10% | |
| Squareness ntawm Sab | 90℃± 2 degree | |
| Sab Nraud Sab Nraud Radius | R Tsawg dua lossis sib npaug rau 3WT | |
| Twist | H Tsawg dua lossis sib npaug li 38.1mm | ± 1.3mm / 1m ntev |
| 38.1mm＜H Tsawg dua lossis sib npaug li 63.5mm | ± 1.6mm / 1m ntev | |
| 63.5mm＜H Tsawg dua lossis sib npaug li 101.6mm | ± 1.9mm / 1m ntev | |
| 101.6mm＜H Tsawg dua lossis sib npaug li 152.4mm | ± 2.2mm / 1m ntev | |
| 152.4mm＜H Tsawg dua lossis sib npaug li 203.2mm | ± 2.5mm / 1m ntev | |
| H>20 3.2mm | ± 2.8mm / 1m ntev | |
| Kev ncaj | 10.4mm / 1000mm ntev | |
| Ntev | +50mm/-0mm | |
Qhov txawv ntawm A500 GrC thiab GrB yog dab tsi
| Feature | Qib B (Gr B) | Qib C (Gr C) |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug rau 315 MPa (45,000 psi) | Ntau dua lossis sib npaug rau 345 MPa (50,000 psi) |
| Tensile zog | 380-550 MPa (55,000-79,800 psi) | 450-620 MPa (65,300-89,900 psi) |
| Kev siv thawj zaug | Daim ntawv thov teeb pom kev zoo (piv txwv li, tsis yog- cov thav duab tseem ceeb, laj kab) | Heavy-cov haujlwm ua haujlwm ntawm cov ntawv thov(piv txwv li, tsev kab, kev txhawb nqa choj) |
| Nqi | Lower (vim cov khoom siv zog qis dua) | Me ntsis siab dua (vim muaj zog dua thiab tswj tau zoo) |
A500 GRC Hollow Section Hoobkas
