P275NH yog European txheem steel phaj rau boiler siab hlab ntsha, ib tug normalized weldable zoo grain hlau.
Raws li EN10020, P275NH, P275NL1, P355NH, P355NL1 yog non-alloyed zoo qib steels.
Tus txheej txheem tswj hwm ntawm P275NH: Tus qauv thawj coj yog EN 10028-3: 2009(E).
P275NH tus txheej txheem: tus me nyuam raws li txoj cai yog normalised.
P275NH flaw detection theem: 'ib sojntsuam, ob sojntsuam, peb sojntsuam'.
P275NH thickness tuaj yeem ua Z cov khoom: Z15, Z25, Z35.
P275NH tuaj yeem ua 1/2 qhov chaw kuaj kev ua haujlwm.P275NH ceev: 7.85 / m3.
P275NH Rational luj mis: thickness * dav * ntev * ceev.
P275NH steel phaj mechanical zog:
Qib: P275NH thickness Tsawg dua los yog sib npaug rau 16; yield zog Ntau dua los yog sib npaug rau 275MPa; tensile zog 390-510MPa; elongation Loj dua los yog sib npaug 24.
Qib: P275NH thickness 16-40; yield zog Ntau dua los yog sib npaug rau 265MPa; tensile zog 390-510MPa; elongation Loj dua los yog sib npaug 24.
Qib: P275NH Thickness 41-60; Yield zog Ntau dua los yog sib npaug rau 255MPa; Tensile zog 390-510MPa; Elongation Loj dua lossis sib npaug rau 24.
Qib: P275NH Thickness 61-100; Yield zog Ntau dua los yog sib npaug rau 235MPa; Tensile zog 370-490MPa; Elongation Loj dua lossis sib npaug rau 23.
Qib: P275NH Thickness 101-150; yield zog Ntau dua los yog sib npaug rau 225MPa; tensile zog 360-480MPa; elongation Ntau dua lossis sib npaug 23.
Qib: P275NH Thickness 151-250; Yield zog Ntau dua los yog sib npaug rau 215MPa; Tensile zog 350-470MPa; Elongation Loj dua lossis sib npaug rau 23.
P275NH steel phaj yog dav siv nyob rau hauv roj av, tshuaj siv tshuaj dewatering ntauwd, nruab nrab siab flash evaporation ntauwd, txias.
