| Chemical Composition (Tswj/Sawv cev Range) |
|
| Cov pa roj carbon (C) |
Tsawg dua lossis sib npaug li 0.25% (Feem ntau qis dua, kev qhia tshwj xeeb tsom rau kev siv tshuab) |
Tsawg dua lossis sib npaug li 0.30% (Rau Qib B) |
Zoo sib xws max txwv, tab sis A795 feem ntau lub hom phiaj qis C rau weldability / toughness nyob rau hauv hluav taws apps. |
| Manganese (Mn) |
0.60% - 1.20% (Qhov ntau yam rau cov yeeb nkab hluav taws) |
0.29% - 1.06% (Rau Qib B) |
Kev sib tshooj sib tshooj, tab sis A795 cov yeeb nkab hluav taws feem ntau siv Mn qib zoo ib yam li A53. |
| Phosphorus (P) |
Tsawg dua lossis sib npaug rau 0.035% (Specification txwv) |
Tsawg dua lossis sib npaug li 0.035% (Rau Qib B) |
Zoo tib yam qhov siab tshaj plaws. |
| Sulfur (S) |
Tsawg dua lossis sib npaug rau 0.035% (Specification txwv) |
Tsawg dua lossis sib npaug li 0.035% (Rau Qib B) |
Zoo tib yam qhov siab tshaj plaws. |
| Alloying Elements (Qhov txawv tseem ceeb) |
Feem ntau Carbon -Manganese (C-Mn) steel.Tej zaum yuav muaj cov kab lus, tab sistsis muaj alloying tseem ceeblike Mo, Ni, Cr. Tsim los ntawm kev txhim khu kev qha, weldable steel rau kev tiv thaiv hluav taws. |
Feem ntau Carbon -Manganese (C-Mn) steel.Zoo ib yam li A795 Qib A cov yeeb nkab hluav taws hauv cov khoom siv hauv paus. (Ceeb Toom: A53 kuj tsis muaj qhov tseem ceeb alloying rau Qib B). |
Lub hauv paus zoo sib xws:Ob leeg yog C-Mn steels rau kev siv yeeb nkab dav dav. A795 yogqhiarau kev tiv thaiv hluav taws, A53 yog cov kav dej dav dav. |
| Mechanical Properties / Mechanic Performance |
|
| Tensile zog (MPa) |
Ntau dua lossis sib npaug rau 310 MPa (45,000 psi min) |
Ntau dua lossis sib npaug rau 415 MPa (Rau Qib B, 60,000 psi min yog ib yam nkaus, tab sis min yog 415 MPa) |
A53 Qib B muaj qhov siab duayam tsawg kawg nkaustensile zog yuav tsum tautshaj A795 Qib A. |
| Yield zog (MPa) |
Ntau dua lossis sib npaug rau 175 MPa (25,000 psi min, 0.2% offset) |
Ntau dua lossis sib npaug rau 240 MPa (Rau Qib B) |
A53 Qib B muaj qhov siab duayam tsawg kawg nkausyield zog yuav tsum tautshaj A795 Qib A. |
| Elongation (%) |
Ntau dua lossis sib npaug li 25% (Longitudinal test, 8-inch gauge length typical) |
Ntau dua lossis sib npaug li 21% lossis Ntau dua lossis sib npaug li 23% (Nyob ntawm cov yeeb nkab loj thiab ntsuas ntsuas qhov ntev - 2-inch lossis 8-nti; 23% rau 8-nti yog ib txwm rau Qib B) |
A795 Qib A feem ntau muaj qhov siab duayam tsawg kawg nkauselongation yuav tsum tau tshaj A53 Qib B, qhia tias muaj peev xwm zoo dua ductility / formability. |
| Manufacturing & Testing |
ERW (Type E).Tsim thiab sim tshwj xeeb rauhluav taws sprinkler / standpipe systems. Tej zaum yuav muaj cov kev cai tshwj xeeb rau kev sim hydrostatic, flattening, flange test (yog tias tsim nyog), thiab muaj feem cuam tshuam rau kev sim yog tias tau teev tseg rau qis -temp fire apps (txawm tias tsis yog tus qauv). |
Nws tuaj yeem yog ERW lossis Seamless.Ib tug dav - lub hom phiaj yeeb nkab txheem. Kev ntsuam xyuas suav nrog hydrostatic, flattening, flange test (yog tias tsim nyog), thiab muaj feem cuam tshuam rau kev sim nyob ntawm qib / kev qhia tshwj xeeb (xws li Charpy V-notch rau qis temps). |
Daim ntawv thov Focus:A795 yogmob siab rautiv thaiv hluav taws. A53 yog tus qauv dav siv rau ntau yam kev siv (dej, roj, huab cua, chav, qauv, tiv thaiv hluav taws ib yam nkaus). |
| Daim ntawv thov tseem ceeb |
Hluav Taws Sprinkler Systems, Hluav Taws Standpipes. |
Cov dej hauv qhov dej, cov kav dej rau dej, roj, cua, chav dej, kev siv cov qauv, thiab tseem tiv thaiv hluav taws. |
A795 yog tus qauv specificationrauhluav taws tiv thaiv yeeb nkab.A53 yog cov kav dej dav dav uassiv taurau kev tiv thaiv hluav taws ntawm ntau lwm yam |
