Q295NH thiab Q235NH yog Suav (GB) qauv huab cua- tiv taus (corten) steel daim hlau, nrog rau qhov sib txawv ntawm lawv lub zog: Q295NH muaj lub zog qis dua qis dua (nyob ib ncig ntawm 295 MPa) dua li Q235NH (ib puag ncig 235 MPa), ua Q295NH muaj zog dua li cov khoom siv hauv tsev, cov khoom siv thiab cov khoom siv hluav taws xob. siab zog yog xav tau, nrog 'N' denoting normalization thiab 'H' qhia ib tug tshwj xeeb hardness los yog lub zog theem.
Tshuaj muaj pes tsawg leeg ntawm Q235NH hlau phaj
|
Element |
Cov ntsiab lus (%) |
|---|---|
|
Cov pa roj carbon (C) |
Tsawg dua lossis sib npaug li 0.13 |
|
Silicon (Si) |
0.10 - 0.40 |
|
Manganese (Mn) |
0.20 - 0.60 |
|
Phosphorus (P) |
Tsawg dua lossis sib npaug li 0.030 |
|
Sulfur (S) |
Tsawg dua lossis sib npaug li 0.030 |
|
Chromium (Cr) |
0.30 - 1.25 |
|
Nickel (Ni) |
Tsawg dua lossis sib npaug li 0.65 |
|
Copper (Cu) |
0.25 - 0.55 |
Tshuaj muaj pes tsawg leeg ntawm Q295NH hlau phaj
|
Element |
Cov ntsiab lus (%) |
|---|---|
|
Cov pa roj carbon (C) |
Tsawg dua los yog sib npaug li 0.15 |
|
Silicon (Si) |
0.10 - 0.40 |
|
Manganese (Mn) |
0.30 - 1.00 |
|
Phosphorus (P) |
Tsawg dua lossis sib npaug li 0.035 |
|
Sulfur (S) |
Tsawg dua lossis sib npaug li 0.035 |
|
Chromium (Cr) |
0.30 - 1.25 |
|
Nickel (Ni) |
Tsawg dua lossis sib npaug li 0.65 |
|
Copper (Cu) |
0.25 - 0.55 |
Mechanical Properties thiab Performance
Q235NH steel daim hlau xa cov neeg kho tshuab ua haujlwm zoo tsim nyog rau kev thov welded daim ntaub ntawv. Cov khoom tseem ceeb muaj xws li:
Yield Strength: Ntau dua los yog sib npaug rau 235 MPa (rau thicknesses txog 200mm)
Tensile zog: 360 - 510 MPa
Elongation: Ntau dua los yog sib npaug li 21% (kom ntseeg tau tias ductility rau kev sib sau thiab vuam)
Impact Toughness: Zoo heev low -kub kev ua tau zoo, nrog Charpy V-notch tests muaj raws li qhov kev thov
Q295NH daim hlau muab cov khoom siv cuab yeej cuab tam rau welded fabrications, ua kom muaj kev ncaj ncees nyob rau hauv kev ntxhov siab:
Tawm Zog: Ntau dua lossis sib npaug li 295 MPa (txog 100mm thickness)
Tensile zog: 390 - 530 MPa
Elongation: Ntau dua lossis sib npaug li 20% (txhim kho qhov zoo)
Impact Toughness: Charpy V-notch tested for low-kub resilience
Qhov tseem ceeb sib txawv & zoo sib xws:
Q235 NH:
Lub zog: qis zog, nrog rau qhov taw tes tawm ntawm 235 MPa (zoo ib yam li cov qauv hlau zoo li ASTM A36 lossis S235JR).
Daim ntawv thov: Siv qhov zoo formability thiab weldability xav tau, feem ntau rau cov qauv yooj yim los yog qhov chaw xav tau corrosion kuj tab sis tsis muaj zog heev.
Q295 NH:
Lub zog: Lub zog siab dua, nrog qhov taw tes tawm ntawm yam tsawg 295 MPa, ua rau nws muaj zog dua.
Daim ntawv thov: Haum rau ntau qhov kev xav tau ntawm cov khoom siv xws li cov tsheb thauj khoom, cov thawv ntim khoom thauj, thiab cov yees, qhov twg yuav tsum muaj peev xwm thauj khoom ntau dua -.
Ob leeg:
Hom: Ob leeg yog huab cua -resistant (Corten) steels, tsim kev tiv thaiv xeb-zoo li patina rau ntuj tiv thaiv corrosion, www.alibaba.com sau ntawv www.alibaba.com.
Standard: Poob raws li Suav GB qauv rau cov qauv huab cua-resistant steel.
Khoom: Muab kev txhim kho atmospheric corrosion kuj, txo kev noj (tuaj yeem siv tsis tau pleev xim), thiab zoo weldability.
