Muaj peb hom thiab ob qib ntawm A53 yeeb nkab: A53 Hom F, longitudinal furnace butt welding lossis nruam vuam (Qib A thiab B), A53 Hom E, longitudinal resistance welding (Qib A thiab B), A53 Hom S, uas yog Seamed cov raj, ua los ntawm cov hlau (qib A thiab B) los ntawm kev ua haujlwm kub thiab ua kom txias txias.
ASTM A53 yeeb nkab yog qhov loj raws li Nominal Pipe Size (NPS) system. Nws feem ntau tuaj nrog threaded xaus los yog flush-txiav xaus. Nws tuaj yeem siv los thauj cov pa, dej thiab cua. Nws tseem yog weldable thiab tuaj yeem siv rau hauv kev siv cov qauv.
Seamless kav dej. Sab nraud diameters li ntawm 1/8 "mus rau 26" (3.2mm txog 660mm), thiab phab ntsa thicknesses li ntawm 0.405" mus rau 4" (10.3mm txog 100mm).
Ncaj seam yeeb nkab. Sab nraud diameters li ntawm 1/2 "mus rau 26" (21.5mm txog 660mm) thiab phab ntsa thickness ranges ntawm 0035" mus rau 0.500" (0.9mm txog 12.7mm ).
ASTM A53 Qib Byog cov khoom siv raws li American steel yeeb nkab qauv, API 5L Gr.B kuj yog cov khoom siv hauv Asmeskas, A53 GR.B ERW yog hais txog hluav taws xob tsis kam welded steel yeeb nkab ntawm A53 GR.B; API 5L GR.B Welded yog hais txog cov khoom siv Welded steel yeeb nkab ntawm API 5L GR.B.
Chemical Properties%
| / | Qib |
C, max |
Mn, max |
P, max |
S, max |
Cu*, max |
Ni*, max |
Cr*, ib max |
Mo*, max |
V*, max |
| Hom S (Seamless) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 | |
| Hom E (Electric-Resistance Welded) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 | |
| Hom F (Qhov cub-welded) | A | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
Mechanical Properties
| Qib A | Qib B | |
| Tensile zog, min., psi, (MPa) | 48,000 (330) | 60,000 (415) |
| Yield zog, min., psi, (MPa) | 30,000 (205) | 35,000 (240) |
