SS 309S / SS 309H Hlau

SS 309S stainless hlau yog ib qho khoom siv zoo heev austenitic stainless hlau siv rau nws cov oxidation zoo heev, kub-kub, lub zog, thiab creep kuj. Cov ntsiab lus qis nickel ntawm Stainless Steel 309, piv rau Stainless Steel 310, ua rau nws tsis kam mus rau hydrogen sulfide (H2S) nres ntawm qhov kub thiab txias. Nws yog tawv thiab tawv thiab tuaj yeem ua tau yooj yim fabricated thiab machined. SS 309S yog qhov tsawg-carbon version, thiab pom zoo rau, siv qhov twg rhiab heev thiab corrosion tom qab los ntawm kub condensates thaum lub sij hawm kaw yuav ua rau muaj kev sib tw. Stainless hlau 309S yog siv rau nws qhov kub-kub oxidation tsis kam thiab tiv thaiv H2S nres. 309S Stainless Steels tuaj yeem yob tsim, stamped thiab kos tau yooj yim. Nyob rau hauv cov txheej txheem annealing feem ntau xav tau los ua kom ductility thiab txo hardness.

Tshuaj muaj pes tsawg leeg

Qib	C	Si	P	S	Cr	Mn	Ni	Fe
309	0.20 max	1.0 max	0.045 max	0.030 max	22.0 - 24.0	2.0 max	12.0 - 15.0	Tseem tshuav
309s ua	0.08 max	1.0 max	0.045 max	0.030 max	22.0 - 24.0	2.0 max	12.0 - 15.0	Tseem tshuav

Mechanical Properties

Qib	Tensile zog (ksi)	0.2% Yield zog (ksi)	Elongation% hauv 2 ntiv tes
309	75	30	40
309s ua	70	25	40

Lub cev muaj zog

	309	309s ua	Kub hauv ° C
Qhov ntom	7.9g/cm 3	8.03g/cm³	Chav
Tshwj xeeb kub	0.12 Kcal/kg C	0.12 Kcal/kg C	22° Nws
Melting Range	1399-1454 ° C	1399-1454 ° C	-
Modulus ntawm Elasticity	200 KN/mm²	200 KN/mm²	22° Nws
Hluav taws xob Resistivity	78 ;cm	78 ;cm	Chav
Coefficient ntawm Expansion	14.9 µm/m°C	14.9 µm/m°C	20-100 °
Thermal conductivity	15.6 W / m -° K	15.6 W / m -° K	20 °