Tsev - Cov khoom - Stainless hlau yeeb nkab - Paub meej

ASTM A928 Duplex Stainless Hlau EFW Yeeb Nkab

ASTM A928 Duplex Stainless Steel EFW Yeeb Nkab specification npog cov qauv kev cai rau ferritic / austenitic (duplex) stainless hlau yeeb nkab uas yog hluav taws xob fusion welded nrog ntxiv ntawm cov hlau muab tub lim haum rau kev pabcuam corrosive. Kev kho cua sov yuav tsum tau ua tom qab vuam thiab ua raws li qhov ntsuas kub thiab quenching.

Muaj lus nug? GNEE cov neeg muag khoom muaj nyob rau hauv kev sib tham tam sim no

Xa E-mail:info@gneestainless.com

Tel:+8615824687445

Xa kev nug Tsham tam sim no

Hauj lwm lawm

Ob peb qib ntawm ferritic / austenitic steel yuav tsum ua raws li qhov yuav tsum tau muaj ntawm cov kev qhia tshwj xeeb thiab kev xaiv qib. Kev ntsuas kub thiab cov khoom lag luam yuav tsum tau ua thiab yuav tsum ua raws li qhov yuav tsum tau ua rau qib tshwj xeeb. Lub phaj siv los ua cov yeeb nkab yuav tsum ua raws li qhov xav tau tensile zog. Cov yeeb nkab steel yuav tsum tau ua ntau yam kev ntsuam xyuas nrog rau kev ntsuas kev sib hloov, kev ntsuas kev sib hloov-khoov, kev sim tsis muaj kev puas tsuaj, kev sim hydrostatic, thiab kev ntsuas hluav taws xob tsis zoo.

Tsib chav kawm ntawm cov yeeb nkab yog them raws li hauv qab no:
Chav Kawm 1-Cov yeeb nkab yuav tsum tau muab ob npaug rau welded los ntawm cov txheej txheem siv cov khoom siv hlau hauv txhua qhov kev hla thiab yuav tsum tau muab cov duab hluav taws xob tag.
Chav Kawm 2-Cov yeeb nkab yuav tsum tau muab ob npaug rau welded los ntawm cov txheej txheem siv cov khoom siv hlau hauv txhua qhov kev hla. Tsis tas yuav radiograph.
Chav Kawm 3-Cov yeeb nkab yuav tsum yog ib qho welded los ntawm cov txheej txheem siv cov hlau ua rau hauv txhua qhov kev hla thiab yuav tsum tau kuaj pom tag nrho.
Chav Kawm 4—Tib yam li Chav Kawm 3, tshwj tsis yog tias qhov kev sib txuas tau raug tso cai rau hauv cov yeeb nkab sab hauv yog tso cai ua yam tsis muaj qhov sib ntxiv ntawm cov hlau nplaum (saib 6.2.2.1 thiab 6.2.2.2).
Chav Kawm 5-Cov yeeb nkab yuav tsum tau muab ob npaug rau welded los ntawm cov txheej txheem siv cov hlau filler nyob rau hauv tag nrho cov kev hla thiab yuav tsum tau pom radiographed.

Duplex stainless hlau yog heev corrosion resistant, ua hauj lwm hardenable alloys. Lawv cov microstructures muaj kev sib xyaw ntawm austenite thiab ferrite theem. Yog li ntawd, duplex stainless steels qhia cov yam ntxwv ntawm ob qho tib si austenitic thiab ferritic stainless hlau. Qhov kev sib xyaw ua ke ntawm cov khoom no tuaj yeem txhais tau qee qhov kev cuam tshuam thaum piv nrog cov qib ntshiab austenitic thiab ntshiab ferritic qib.
Duplex stainless hlau yog feem ntau, tawv dua ferritic stainless hlau. Lub zog ntawm duplex stainless hlau tuaj yeem nyob rau qee kis yog ob npaug rau austenitic stainless hlau.
Lub duplex stainless hlau yog suav tias yog resistant rau kev nyuaj siab corrosion cracking, lawv tsis resistant rau daim ntawv no ntawm kev tawm tsam li ferritic stainless hlau. Txawm li cas los xij, qhov corrosion kuj ntawm qhov tsawg tshaj plaws resistant duplex stainless hlau yog ntau dua li qhov uas feem ntau siv qib ntawm stainless hlau, piv txwv li 304 thiab 316.

Duplex stainless hlau kuj tseem sib nqus, cov cuab yeej siv tau yooj yim sib txawv ntawm cov qib austenitic ntawm stainless.
Cov ntaub ntawv khoom vaj khoom tsev tau muab rau hauv daim ntawv no yog qhov zoo rau cov khoom lag luam tiaj tus uas them los ntawm ASTM A240 / A240M. ASTM, EN lossis lwm yam qauv yuav them rau cov khoom muag. Nws yog qhov tsim nyog los cia siab tias cov kev qhia tshwj xeeb hauv cov qauv no yuav zoo sib xws tab sis tsis tas yuav zoo ib yam rau cov uas tau muab rau hauv cov ntaub ntawv no.

EQUIVALENT QIB

STANDARD	WERKSTOFF NR.	UNS
Duplex UNS S31803	1.4462	S31803
Duplex UNS S32205	1.4462	S32205

DUPLEX STEEL A928 UNS S31803 PIPE CHEMICAL COMPOSITION

Qib	C	Mn	Si	P	S	Cr	Ni	Mo	N	Fe
Duplex S31803	0.030 max.	2 00 max.	1 00 max.	0.030 max.	0.020 max.	22.0 – 23.0	4.50 – 6.50	3.0 – 3.5	0.14 – 0.20	6 3,72m.
Duplex S32205	0.030 max.	2 00 max.	1 00 max.	0.030 max.	0.020 max.	21.0 – 23.0	4.50 – 6.50	2.50 – 3.50	0.08 – 0.20	63,54m ib

DUPLEX STEEL A928 UNS S31803 Yeeb Nkab MECHANICAL PROPERTIES

Element	Qhov ntom	Melting Point	Tensile zog	Yield zog (0.2% Offset)	Elongation
Duplex S31803	7.805	0.285	1420 – 1465	2588 – 2669	25 feeb.
Duplex S32205	7.805	0.285	1420 – 1465	2588 – 2669	25 feeb