Txuj: ASTM A500 (ASME SA500)
Lub hom phiaj tseem ceeb: hluav taws xob, roj av, tshuaj lom neeg cov tuam txhab, kub kub, tsis kub tsis kam, corrosion-resistant piping systems.
Cov khoom tseem ceeb ntawm cov hlau / steel qib: Gr.A;Gr.B;Gr.C.
Specifications: OD: 10.3-820 hli, phab ntsa thickness: 0.8 txog 75 hli, Ntev: 6m, Ntxiv rau, raws li cov neeg siv khoom xav tau, uas tuaj yeem muab lwm qib thiab cov lus qhia ntawm cov yeeb nkab steel.
Kev ua: steel yuav tsum ua raws li ib lossis ntau qhov ntawm kev ua: qhib-hearth, tshuab pa oxygen, lossis hluav taws xob rauv steelmaking, casting ntawm cov qib sib txawv ntawm cov hlau hauv kev txiav txim, cov neeg tsim khoom steel yuav tsum txiav txim siab cov khoom siv nruab nrab uas siv cov txheej txheem kev tshem tawm, kom meej. kev sib cais ntawm ib theem.
Manufacturing: ua los ntawm seamless los yogwelded steel yeeb nkab, welded yeeb nkab los ntawm dov ua los ntawm kev tiv thaiv vuam.Cov qauv tsim lub zog ntawm qhov kev taw qhia ntev ntawm cov yeeb nkab, docking daim ntawv thov raj yog ib txoj hauv kev txiav txim siab los ntawm nws cov thickness rau vuam.
Chemical Component (%)
| Qib | C | M | P | S | Cu |
| Gr.A | 0.26 | 1.35 Nws | 0.035 ib | 0.035 ib | 0.20 ib |
| Gr.B | 0.30 Nws | 1.40 Nws | 0.045 ib | 0.045 ib | 0.18 |
| Gr.C | 0.23 | 1.35 Nws | 0.035 ib | 0.035 ib | 0.20 ib |
| Gr.D | 0.27 ib | 1.40 Nws | 0.045 ib | 0.045 ib | 0.18 |
Mechanical Properties Min (MPa)
| Qib | Tensile zog | Yield zog | Elongation |
| Gr.A | 310 | 230 | 25 |
| Gr.B | 400 | 290 | 23 |
| Gr.C | 425 | 315 | 21 |
| Gr.D | 400 | 250 | 23 |
ASTM A520 Cov Lus Qhia Tshwj Xeeb
ASTM A520 Standard Specification rau Supplementary Requirements for Seamless and Electric-Resistance-Welded Carbon Steel Tubular Products for High-Temperature Service Conforming to ISO Recommendations for Boiler Construction.
Qhov kev qhia tshwj xeeb no muab cov kev cai uas yuav tsum tau ntxiv thiab hloov pauv qhov yuav tsum tau ua ntawm ASTM specifications rau seamless thiab hluav taws xob tiv thaiv-welded carbon steel tubular khoom tsim nyog rau cov kev pab cuam kub, thaum cov khoom tubular yuav tsum tau siv nyob rau hauv daim ntawv thov raws li ISO txoj cai.Tubular specifications uas tej zaum yuav hu rau qhov specification no yog: Seamless Carbon Steel Yeeb Nkab rau High-Tub Service A 106 Electric-Resistance-Welded Carbon Steel Boiler Tubes A 178 / A 178M Seamless Carbon Steel Boiler Tubes rau High-Pressure Service A 192 / A 192M Seamless Medium-Carbon Steel Boiler thiab Superheater Tubes A 210 / A 210M Hluav Taws Xob-Resistance-Welded Carbon Steel Boiler thiab A 226 Superheater Tubes rau Kev Pabcuam Siab.Cov nqi teev nyob rau hauv nti-phaus units yuav tsum raug suav hais tias yog tus qauv.
Post lub sij hawm: Sep-26-2019