I. Cov Qauv Ua Haujlwm
International Standards
TIAB SA 17100: German tus qauv qhia txog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov txheej txheem rauTSI 52-3.
ASTM / API: Qee cov ST52 steel kav ua raws li US cov qauv (xws li,API 5L X52) rau cov roj thiab cov kav dej.
Cov qhab nia sib npaug hauv tsev
Q355(Hloov Q345): Zoo ib yam li ST52-3 tab sis nrog kev tswj nruj dua ntawm phosphorus / sulfur thiab ntau dua elongation.
II. Daim Ntawv Thov Scope
Kev tsim kho & choj
Steel ncej, choj kev txhawb nqa yuav tsum tausiab zog (yield zog Ntau dua los yog sib npaug rau 355MPa)thiab toughness.
Mechanical Manufacturing
Crane booms, siab hlab ntsha, hydraulic ncej, leveraging nwstensile zog (490-650MPa)thiab weldability.
Kev lag luam Petrochemical
Roj/gas pipelines (eg,API 5L X52) Cov cuab yeej siv tshuaj uas xav tau siab thiab corrosion kuj.
Lwm yam teb
Automotive qhov chaw, nkoj qauv, boiler kav, thiab lwm yam.
III. Key Performance Parameters
Tshuaj muaj pes tsawg leeg
C Tsawg dua lossis sib npaug li 0.22%, Mn Tsawg dua lossis sib npaug li 1.7%, P/S Tsawg dua lossis sib npaug li 0.035%.
Mechanical Properties
Tensile zogUa haujlwm siab: 500-650 MPa.
Yield zog: Ntau dua lossis sib npaug li 355 MPa (rau phab ntsa thickness Tsawg dua lossis sib npaug li 16 hli).
