ASTM A500 Gr B Cold Formed Welded Structural Square Tubing piav qhia
ASTM A500 Txuj: Qhov no yog qhov tshwj xeeb tsim los ntawm ASTM International rau txias - ua welded thiab seamless carbon steel structural tubing nyob rau hauv rounds, squares, thiab rectangles. Nws qhia txog cov kev xav tau ntawm cov khoom siv kho tshuab, tshuaj lom neeg muaj pes tsawg leeg, thiab lwm yam ntxwv.
Qib B (GRB): Qhov no yog hais txog qib tshwj xeeb hauv ASTM A500 tus qauv, uas muaj nws tus kheej cov txheej txheem rau tensile lub zog, yield zog, thiab elongation.
Txias-Formed Welded Pipe: Qhov no qhia tau hais tias cov yeeb nkab yog tsim los ntawm kev sib txuas ua ke steel strips los yog coils uas tau zoo li lub voj voog, square, los yog duab plaub -section ntawm chav tsev kub los ntawm qhov txias - txheej txheem tsim.
ASTM A500 Gr B Cold formed Square Hollow Section Chemical Composition
| ASTM A500 1 | C, max | P, max | S, max | Cu, min |
| Qib B | 0.26 | 0.035 | 0.035 | 0.20 |
ASTM A500 Gr B Txias Tsim Cov Qauv Square Hollow Section Mechanical Properties
| ASTM A500 1 | Tensile zog, min | Yield zog, min, | Elongation hauv 2 nti (50.8 mm) min, % |
| Qib B | 400 MPa, 58 000 psi | 317 MPa, 46 000 psi | 23 |
Sab nraum Dimension Tolerances Rau Square thiab Rectangular Structural Tubing
| Sab Nraud Loj Loj Loj, hauv. (mm) | Loj Flat Dimension kam rau ua, A ntxiv thiab rho tawm, hauv. (mm) |
|---|---|
| 2½ (63.5) lossis qis dua | 0.020 (0.51) |
| Tshaj 2½ txog 3½ (63.5 txog 88.9), suav nrog | 0.025 (0.64) |
| Tshaj 3½ txog 5½, inc | 0.030 (0.76) |
| Tshaj 5½ (139.7) | 0.01 npaug loj tiaj tus dimension |
Daim ntawv thov
A500 GRB txias- tsim welded yeeb nkab yog dav siv nyob rau hauv ntau yam kev siv, xws li:
Kev tsim vaj tsev (piv txwv li, ncej, kab, kab teeb)
Infrastructure tej yaam num (piv txwv li, choj, overpasses)
Cov cuab yeej siv thiab tshuab
Cov laj kab, railings, thiab lwm yam kev tiv thaiv kev nyab xeeb
Kev kuaj thiab tshuaj xyuas
Ntim thiab shipping
