Lub zog ntawm ASTM A500 yeeb nkab yog dab tsi?
ASTM A500 tus qauv siv rau txias-tsim thiab kub-tsim steel kav thiab nplooj ntawv, feem ntau rau kev siv cov qauv.
ASTM A500 steel muaj cov khoom zoo heev thiab kev tiv thaiv corrosion. Feem ntau, ASTM A500 steel muaj lub zog tensile ntawm 310-580 MPa thiab lub zog tawm los ntawm 205-355 MPa, txhais tau tias nws tuaj yeem tiv taus siab thiab cuam tshuam quab yuam. Cov hlau kuj pom zoo ductility thiab toughness, ua rau nws tsis tshua muaj nkig tawg nyob rau hauv kev cuam tshuam. Cov khoom no tau coj mus rau kev siv dav ntawm ASTM A500 steel hauv kev tsim vaj tsev.
Tensile Requirements ntawm ASTM A500 Steel Tube
| Qib A | Qib B | Qib C | Qib D | |
|---|---|---|---|---|
| Tensile zog, mn, ps (MPa) | 45 000 (310) |
58 000 (400) |
62 00 (427) |
58 000 (400) |
| Yield zog, mn, psi (MPa) | 39 000 (269) |
46 000 (317) |
50 000 (345) |
36 000 (250) |
| Elongation hauv 2 nti (50.8 mm), min, %A | 25B | 23C | 21D | 23C |
Kev xav tau tshuaj lom neeg ntawm ASTM A500 Qib A, A500 Qib B, A500 Qib D, thiab A500 Qib C Hollow Tshooj
| Element | Qib A, B thiab D | Grace C | ||
|---|---|---|---|---|
| Kub Kev tsom xam |
Khoom Kev tsom xam |
Kub Kev tsom xam |
Khoom Kev tsom xam |
|
| Carbon, max | 0.26 | 0.30 | 0.23 | 0.27 |
| Manganese, max | ... | ... | 1.35 | 1.40 |
| Phosphorus, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Sulfur, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Copper, thaum tooj liab hlau yog teev, min |
0.20 | 0.18 | 0.20 | 0.18 |
ASTM A500 Hollow Section Hoobkas
