Qib 304 Stainless Hlau Seamless / Welded Pipes rau General Corrosion Resistance Applications

Cov khoom tseem ceeb

Cov khoom no tau teev tseg rau cov khoom lag luam tiaj tus (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

Table 1.Feem ntau muaj pes tsawg leeg rau 304-qib stainless hlau

Qib		C	Mn	Si	P	S	Cr	Mo	Ni	N
304	min. max.	- 0.08	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 10.5	- 0.10
304L	min. max.	- 0.030	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 12.0	- 0.10
304H	min. max.	0.04 0.10	- 2.0	- 0.75	-0.045	- 0.030	18.0 20.0	-	8.0 10.5	-

 

Mechanical Properties

Rooj 2.Tej yam khoom siv ntawm 304-qib stainless hlau

Qib	Tensile zog (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% hauv 50 mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
304	515	205	40	92	201
304L	485	170	40	92	201
304H	515	205	40	92	201

 

304H kuj tseem xav tau cov nplej loj ntawm ASTM No 7 lossis coarser.

Lub cev muaj zog

Table 3.Cov yam ntxwv ntawm lub cev ntawm 304-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
304/L/H	8000	193	17.2	17.8	18.4	16.2	21.5	500	720