Peb txhua tus paub Q235 thiab Q345 yog ob cov khoom tseem ceeb ntawm scaffolding.
Koj puas paub dab tsi yog lawv qhov sib txawv.
Q235Yog cov qauv ua tiaj carbon ncaj ncees uas siv thoob plaws Suav teb. Nws tseem hu ua Q235a, Q235b, Q235C, thiab Q235d. Vim tias nws yog hlau me me, nws tau siv nyob rau hauv kev tsim khoom yam tsis muaj kev kho cua sov. Lub Q Tsim cov paib tshwm sim, thiab 235 qhia tau tias muaj zog zog.
Q345yog cov khoom siv steel. Nws yog cov hlau qis-alloy (c <0.2%), siv dav hauv cov choj, tsheb, nkoj, vaj tse, cov hlab ntsha, cov hlab ntsha, cov hlab ntsha, cov hlab ntsha, siab cov hlab ntsha. Q sawv cev rau cov txiaj ntsig ntawm cov khoom no, tom qab 345, cov txiaj ntsig yog hais txog tus nqi ntawm cov khoom no, kwv yees li 345.
Q345A, Q345B, Q345C, Q345D, Q345E. Nov yog chav kawm sib txawv sawv cev feem ntau yog qhov cuam tshuam ntawm qhov ntsuas kub nkaus xwb!
Q345a qib, nws tsis poob siab;
Q345b qib yog 20 degrees chav ntsuas kub;
Q345C qib, yog 0 degree cuam tshuam;
Q345d Qib yog -20 degree cuam tshuam;
Q345E qib yog -40 degrees cuam tshuam.
Qhov cuam tshuam ntawm qhov kub sib txawv, poob siab tus nqi sib txawv. Nyob rau hauv lub phaj, rooj plaub ntawm tsawg-alloy series. Hauv cov ntaub ntawv tsawg-alloy uas cov khoom xws li feem ntau.
Q235 thiab Q345 qhov sib txawv 1. Qhov sib txawv ntawm cov txiaj ntsig hluav taws xob muaj zog:
A: Tawm los ntawm lub zog QU235 yog 235MPA,
B: Tso tawm lub zog Q345 yog 345MPA (Q ntawm Suav cim cov cim lub ntsiab lus "khoov tau" khoov tau lub zog los ntawm lub nraub qaum qis dua)
2. Ob qho xim sib txawv cov ntsiab lus:
A: Q235 tib yam cov roj carbon hlau, Q235 yog cov qauv hlau, Q235- Qhov chaw me, khawm, teeb lub tog raj kheej, ncej
B: Q345 Qualoy Tsawg-Alloy Hlau, Q345 Quality Cov Khoom Siv Hluav Taws Xob, Cov Qauv Hluav Taws Xob, Cov Hlau Hluav Taws Xob, Cov Hlau Siv Hluav Taws Xob Siv rau txhua hom steel saum toj -40 ℃ qhov chaw txias.
Lub Sijhawm Post: Plaub-23-2021 