Alloy 20 Stainless hlau

Alloy 20 (UNS N08020) yog ib qho austenitic, npib tsib xee-hlau-chromium raws li super alloy nrog ntxiv ntawm tooj liab thiab molybdenum uas muab kev tiv thaiv rau ib puag ncig hostile, pitting, thiab crevice corrosion. Nws kuj tseem ruaj khov nrog Columbium kom txo qis carbide nag lossis daus thaum vuam. Alloy 20 zoo li poob ntawm ob pawg stainless thiab npib tsib xee vim nws muaj cov yam ntxwv ntawm ob qho tib si. Nws tau tsim los rau qhov siab tshaj plaws tiv thaiv acid nres thiab ua kom pom kev ua haujlwm zoo tshaj plaws rau kev ntxhov siab-corrosion tawg hauv boiling 20% ​​mus rau 40% sulfuric acid, thiab kuj muaj kev zoo heev corrosion kuj rau sulfuric acid thiab chloride kev nyuaj siab corrosion cracking. Alloy 20 muaj cov cuab yeej zoo txhua yam ntawm ob qho tib si ambient thiab siab kub, txog li 930 ° F (500 ° C) thiab yog yooj yim fabricated los ntawm ib txwm muaj txheej txheem.

Specifications

	Txuj	Alloy 20
1	UNS	N08020
2	Werkstoff Nr.	2.4660

Chemical Properties:

HOM	C	Cr	Cu	Fe	Mn	Mo	Ni	P	Si	S	Nb (Cb)
Alloy 20 UNS N08020	0.07 max	min: 19.00 Nws max: 21.00 Nws	min: 3.00 Nws max: 4.00 Nws	Tshuav	2.00 max	min: 2.00 Nws max: 3.00 Nws	min: 32.00 Nws max: 38.00 Nws	0.045 max	1.00 max	0.035 max	8 XC min max 1.00 Nws

Mechanical Properties:

Stabilized-Annealed Condition
Daim ntawv khoom	Tensile Lub zog, ksi (min)	Yield Lub zog, 0.2% offset ksi (min)	Elongation% (min)	Kev txo qis ntawm cheeb tsam % (min)	Hardness Brinell (Max)	Hardness Rockwell B (max)
Phaj, Sheet	80	35	30	—	217	95
Bar	80	35	30	50	—	—

Qhov ntom	8.1g 3
Melting Point	1443 ° C (2430 ° F)

Nta

• Superior corrosion, pitting thiab crevice kuj
• Muaj Niobium rau stabilization tiv thaiv rhiab heev thiab tshwm sim intergranular corrosion
• Zoo heev mechanical zog thiab fabricability
• Tsawg carbide nag lossis daus thaum vuam

Daim ntawv thov
Vim nws qhov siab tiv thaiv corrosion, Alloy 20 yog siv rau hauv kev tsim tshuaj, khoom noj khoom haus, tshuaj, tsim hluav taws xob thiab daim ntawv thov yas. Li qub, twj tso kua mis thiab lub tshuab siab yog qee qhov nrov tshaj plaws uas Alloy 20 ua haujlwm.