1. EN 10297 X1CrNiMoN25-22-2 yog dab tsi?
Teb:
TS EN 10297 X1CrNiMoN25-22-2siab -alloy austenitic stainless hlau seamless rajraws li European tus qauv EN 10297. Nws yog tsim los rau huab cua corrosion kuj thiab siab - kub stability.
Lub ntsiab lus tseem ceeb:25% Cr, 22% Ni, 2% Mo, thiab nitrogen (N) kom muaj zog.
Qib sib npaug:Zoo ib yam li UNS S31050 lossis DIN 1.4466 (super austenitic steel).
Feature tseem ceeb:Superior tsis kam rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion cracking (SCC).
2. Dab tsi yog cov yam ntxwv ntawm kev siv tshuab?
Teb (kev kho mob annealed):
Tensile zog:650-850 MPa
Yield zog (0.2% offset):Ntau tshaj lossis sib npaug li 300 MPa
Elongation:Ntau dua lossis sib npaug li 35%
Hardness:Tsawg dua lossis sib npaug li 220 HB
Nco tseg:Nitrogen ntxiv txhim kho lub zog yam tsis muaj kev cuam tshuam ductility.
3. Nws muab piv rau cov qauv 316L lossis 904L steels li cas?
Teb:
Vs . 316L (X5CrNiMo17-12-2):X1CrNiMoN25-22-2 muajsiab dua Cr/Ni/Mo cov ntsiab lusthiab nitrogen, ua rau nws haum rau harsher ib puag ncig (xws li, sulfuric acid, seawater).
Vs . 904L (X1NiCrMoCu25-20-5):Zoo dua tiv thaiv oxidizing acids tab sis txo cov ntsiab lus tooj liab.
4. Dab tsi yog qhov kev txiav txim siab vuam thiab fabrication?
Teb:
Vuam:Siv TIG/PAW nrog cov khoom siv hlau xws li ERNiCrMo-3 (Alloy 625). Tsawg tshav kub input kom tsis txhob σ-theem nag lossis daus.
Machining:Kev ua haujlwm siab- tus nqi hardening yuav tsum muaj cov cuab yeej carbide thiab qeeb qeeb.
Ncej - Weld:Kev daws annealing (1050-1150 degree) yuav xav tau rau cov ntawv thov tseem ceeb.
5. Qhov no steel feem ntau siv nyob qhov twg?
Teb:
Kev lag luam tshuaj:Reactors, piping rau sulfuric / nitric acids.
Roj & Roj:Offshore platforms, flue gas desulfurization (FGD) systems.
Nuclear / Lub Zog:Thaum tshav kub kub exchangers nyob rau hauv txhoj puab heev coolants.
Pharmaceutical:Cov khoom siv uas yuav tsum tau ua kom huv huv ultra-.
