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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