Stainless Steel Qib 321 - Kub Kub Resistant Qib

 

 

 

Kev sib xyaw

Kev sib xyaw ua ke ntawm cov qib 321 stainless hlau yog muab rau hauv cov lus 1.

Table 1.Kev sib xyaw ua ke rau 321-qib stainless hlau

Qib		C	Mn	Si	P	S	Cr	Mo	Ni	N	Lwm yam
321	min. max	- 0.08	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 12.0	0.10	Ti=5(C+N) 0.70
321H	min. max	0.04 0.10	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 12.0	-	Ti=4(C+N) 0.70
347	min. max	0.08	2.00	0.75	0.045	0.030	17.0 19.0	-	9.0 13.0	-	Nb=10(C+N) 1.0

 

Mechanical Properties

Tej yam khoom siv rau qib 321 stainless hlau yog muab rau hauv rooj 2.

Rooj 2.Mechanical zog ntawm 321-qib stainless hlau

Qib	Tensile zog (MPa) min	Yield Strength 0.2% Pov thawj (MPa) min	Elongation (% hauv 50 mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
321	515	205	40	95	217
321H	515	205	40	95	217
347	515	205	40	92	201

 

Lub cev muaj zog

Cov khoom siv lub cev zoo rau qib annealed qib 321 stainless hlau yog muab rau hauv rooj 3.

Table 3.Lub cev muaj zog ntawm 321-qib stainless hlau nyob rau hauv cov mob annealed

Qib	Qhov ceev (kg / m3)	Elastic Modulus (GPa)	Qhov nruab nrab Coefficient ntawm Thermal Expansion (μm / m / ° C)			Thermal conductivity (W / mK)		Kev kub tshwj xeeb 0-100 ° C (J / kg.K)	Hluav taws xob tiv thaiv (nΩ)
			0-100 ° C	0-315 ° C	0-538 ° C	ntawm 100 ° C	ntawm 500 ° C
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720