904L/UNS N08904/EN 1.4539 Insimbi Engagqwali

904L ipayipi yensimbi engagqwali, 904L steel sheet

I-904L (UNS N08904, 1.4539) iyinsimbi engenasici ye-austenitic ene-alloyed ephezulu. Ukwakheka kwayo okulinganiselwe kungu-20% Cr, 25% Ni, 4.0% Mo kanye no-1.5% Cu, okuqinisekisa inombolo elinganayo yokumelana ne-pitting (PREN) engaba ngu-43. Yenzelwe isevisi ye-sulfuric acid, ikakhulukazi ekugxilweni kusuka ku-20% kuya ku-85%.

I-904L iyinsimbi engagqwali ye-austenitic. Uma kuqhathaniswa ne-316L, ukungezwa kwayo kwe-molybdenum kuyinikeza ukumelana okuphezulu nokuhlaselwa kwendawo (i-pitting kanye ne-crevice corrosion) ngama-chloride kanye nokumelana okukhulu nokunciphisa ama-asidi futhi ikakhulukazi, ukufakwa kwayo kwethusi kuyinikeza ukumelana nokugqwala okuwusizo kukho konke ukugxila kwe-sulfuric acid. Okuqukethwe kwayo okuphezulu kwe-alloying nakho kuyinikeza ukumelana okukhulu ne-chloride stress corrosion cracking, kodwa isengathinteka kalula. Okuqukethwe kwekhabhoni ephansi kuyenza imelane nokuzwela ngokushisela futhi ivimbele ukugqwala kwe-intergranular.

Igama le-UNS: UNS N08904

I-JIS Elinganayo: QS 2025 MC

EN/DIN Okulingana Nezinombolo: EN 1.4539

EN/DIN Ukulingana Kophawu: X1NiCrMoCu25-20-5

Amafomu Atholakalayo kanye Nemininingwane

904L ipayipi/ishubhu engenamthungo: ASTM B677, ASTM A312, ASTM A 213, ASTM A269

904L ipayipi/ipayipi elishiselwe: ASTM A312, ASTM A358 904L Ipayipi elishiselwe

904L ipuleti / ishidi / amakhoyili ensimbi engagqwali: ASTM A240, ASTM A480

904L ukufakwa kwamapayipi: ASTM B366 bend, ASTM A403, ANSI B16.9

904L Stainless Steel Fasteners: ASTM A479

Ukwakhiwa kwamakhemikhali

Ni Cr Mo C max Mn max Simax Cu  S P N ubuningi
23.0-28.0 19.0-23.0 4.0-5.0 0.02 2.00 1.00 1.0-2.0 0.035 0.035 0.1

Izakhiwo mechanical

Ukuminyana,g/c㎡ 8.0
Ibanga lokuncibilika, ℃ 1300-1390
Amandla aqinile, min, Mpa 490
Amandla esivuno, 0.2% offset, min, Mpa 216
I-Elongation, A5% 35
Ukuqina, (HR B) 90

Izicelo

  • Imishini ye-petroleum ne-petrochemical, njengama-reactors;
  • Isitoreji kanye nemishini yokuthutha ye-sulfuric acid, njengesishintshi sokushisa;
  • Imishini yokususa igesi emshinini kagesi, njengomzimba wombhoshongo odonsa amanzi, umtshingo, ipuleti lomnyango, izingxenye zangaphakathi, uhlelo lwesifutho;
  • I-Scrubber nefeni ohlelweni lokwelapha lwe-asidi ephilayo.

I-alloy 904L isetshenziswa kabanzi ezimbonini zikawoyela negesi, izimboni zasolwandle, ukucubungula amakhemikhali, nezimboni zenuzi. I-LKALLOY ingomunye wabathengisi abahamba phambili bepayipi lensimbi engagqwali engu-904L, ipuleti, nokufakwa kwamapayipi. Sihamba phambili ekuhlinzekeni i-Alloy 904L yekhwalithi ephezulu kakhulu, eyaziwa ngamandla ayo amahle kakhulu nokumelana nokugqwala okuhle.

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