Qib 321 Stainless Hlau Seamless / Welded Pipes rau siab -Kev siv kub

Cov khoom tseem ceeb

Cov khoom no tau teev tseg rau lub tiaj tus- cov khoom dov (phaj, ntawv, thiab coil) hauv ASTM A240/A240M. Zoo sib xws tab sis tsis tas yuav zoo ib yam khoom yog teev rau lwm yam khoom xws li yeeb nkab thiab bar hauv lawv cov specifications.

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)	Lub ntsiab lus Coefficient ntawm Thermal Expansion (μm / m / degree)			Thermal conductivity (W / mK)		Kev kub ceev 0-100℃(J / kg.K)	Hluav taws xob tiv thaiv (nΩ)
			0-100 degree	0-315 degree	0-538 ° C	ntawm 100 degree	ntawm 500 degree
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720