Stainless Steel Tubing

Stainless Steel Tubing

Comparing the physical properties of stainless steel and carbon steel, the density of carbon steel is slightly higher than that of ferritic and martensitic stainless steel, and slightly lower than that of austenitic stainless steel; The resistivity increases in order of carbon steel, ferritic type, martensitic type and austenitic type stainless steel. The order of linear expansion coefficient is similar, Austenitic stainless steel is the highest and carbon steel is the smallest. Carbon steel, ferritic type and martensitic stainless steel are magnetic, Austenitic stainless steel is non-magnetic, but its cold work hardening into the tensitic phase transition will produce magnetic, heat treatment can be used to eliminate this martensitic structure and restore its non-magnetic.

Equivalent Grades of Stainless Steel Pipes & Tubes in Singapore

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST/KS	AFNOR	EN
SS 304	1.4301	S31600	SUS 304	304S31	08Х18Н10	Z7CN18‐09	X5CrNi18-10
SS 304L	1.4306 / 1.4307	S30403	SUS 304L	3304S11	03Х18Н11	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11
SS 316	1.4401 / 1.4436	S31600	SUS 316	316S31 / 316S33	–	Z7CND17‐11‐02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L	1.4404 / 1.4435	S31603	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 904L	1.4539	N08904	SUS 904L	904S13	STS 317J5L	Z2 NCDU 25-20	X1NiCrMoCu25-20-5

Chemical Composition of Stainless Steel Pipes & Tubes in Singapore

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 304	0.08 max	2 max	0.75 max	0.045 max	0.030 max	18 – 20	–	8 – 11	0.10 max
SS 304L	0.035 max	2.0 max	1.0 max	0.045 max	0.03 max	18 – 20	–	8 – 13	–
SS 316	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	16.00 – 18.00	2.00 – 3.00	11.00 – 14.00	0.10 max
SS 316L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	16.00 – 18.00	2.00 – 3.00	10.00 – 14.00	68.89 min
SS 904L	0.020 max	2.00 max	1.00 max	0.040 max	0.030 max	19.00 – 23.00	4.00 – 5.00 max	23.00 – 28.00	–

 

Mechanical Properties of ASME SA 312 SS Pipes & Tubes in Singapore

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 304	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 316	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 904L	7.95 g/cm3	1350 °C (2460 °F)	Psi – 71000 , MPa – 490	Psi – 32000 , MPa – 220	35 %

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