Stainless Steel Flanges | SS Flanges Suppliers in India: AstroForge Fitting Industries

Chemical Composition of SS Buttweld Fittings

Grade	Si	P	C	Mn	S	Cr	Ni
SS 304	0.75 max	0.045 max	0.08 max	2 max	0.030 max	18 – 20	8 – 11

Grade	Si	P	C	Mn	S	Cr	Ni
SS 304L	1.0 max	0.045 max	0.035 max	2.0 max	0.03 max	18 – 20	8 – 13

Grade	Mn	Si	C	P	Ni	S	Cr	Mo	N
SS 304H	2.0 max	0.75 max	0.10 max	0.045 max	8 – 10.5	0.03 max	18 – 20	–	–

Grade	C	Mn	S	Cr	Si	P	Mo	Fe	Ni
SS 310	0.015 max	2.0 max	0.015 max	24.00 – 26.00	0.15 max	0.020 max	0.10 max	54.7 min	19.00 – 21.00
SS 310S	0.08 max	2.0 max	0.030 max	24.00 – 26.00	1.00 max	0.045 max	0.75 max	53.095 min	19.00 – 21.00

Grade	Si	P	S	C	Ni	N	Mn	Cr	Mo
SS 310H	1.00 max	0.045 max	0.030 max	0.04 – 0.10	19.00 – 21.00	53.885 min	2.0 max	24.00 – 26.00	–

Grade	C	Mn	Si	Cr	Mo	P	S	Ni	Fe
SS 316	0.08 max	2.0 max	1.0 max	16.00 – 18.00	2.00 – 3.00	0.045 max	0.030 max	11.00 – 14.00	67.845 min
SS 316L	0.035 max	2.0 max	1.0 max	16.00 – 18.00	2.00 – 3.00	0.045 max	0.030 max	10.00 – 14.00	68.89 min

Grade	C	Mn	Si	Mo	Ni	P	S	Cr	Fe
SS 316Ti	0.08 max	2.0 max	0.75 max	2.00 – 3.00	10.00 – 14.00	0.045 max	0.030 max	16.00 – 18.00	68.395 min

Grade	C	Mn	Si	Cr	Mo	P	S	Ni	Fe
SS 317	0.08 max	2.0 max	1.0 max	18.00 – 20.00	3.00 – 4.00	0.045 max	0.030 max	11.00 – 15.00	57.845 min

Grade	C	Mn	S	Cr	Si	P	Mo	Ni	Fe
SS 317L	0.035 max	2.0 max	0.030 max	18.00 – 20.00	1.0 max	0.045 max	3.00 – 4.00	11.00 – 15.00	57.89 min

Grade	C	Mn	Si	P	N	Ni	S	Cr	Ti
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.10 max	9.00 – 12.00	0.030 max	17.00 – 19.00	5(C+N) – 0.70 max
SS 321H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.10 max	9.00 – 12.00	0.030 max	17.00 – 19.00	4(C+N) – 0.70 max

Grade	C	Mn	S	Cr	Si	P	Cb	Fe	Ni
SS 347	0.08 max	2.0 max	0.030 max	17.00 – 20.00	1.0 max	0.045 max	10xC – 1.10	62.74 min	9.00 – 13.00
SS 347H	0.04 – 0.10	2.0 max	0.030 max	17.00 – 19.00	1.0 max	0.045 max	8xC – 1.10	63.72 min	9.0 -13.0

Grade	C	Mn	S	Cr	Si	P	Cb	Fe	Ni
SS 347	0.08 max	2.0 max	0.030 max	17.00 – 20.00	1.0 max	0.045 max	10xC – 1.10	62.74 min	9.00 – 13.00
SS 347H	0.04 – 0.10	2.0 max	0.030 max	17.00 – 19.00	1.0 max	0.045 max	8xC – 1.10	63.72 min	9.0 -13.0

Grade	C	P	S	Mn	Si	Cr	Mo	Ni	N
SS 410	0.15 max	0.040 max	0.030 max	1.0 max	1.0 max	11.5 – 13.5	–	0.50 max	–

Grade	C	Mn	S	Cr	Mo	Si	P	Ni	N	Fe
SS 446	0.2 max	1.5 max	0.030 max	23 – 30	–	0.75 max	0.04 max	0.50 max	0.10 – 0.25	Balance

Grade	C	Mn	Si	P	Mo	S	Cr	Ni	Cu
SS 904L	0.020 max	2.00 max	1.00 max	0.040 max	4.00 – 5.00 max	0.030 max	19.00 – 23.00	23.00 – 28.00	1.00 – 2.00

Mechanical Properties of SS Butt weld Pipe Fittings

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
304	8.0 g/cm3	Psi – 75000 , MPa – 515	1400 °C (2550 °F)	Psi – 30000 , MPa – 205	35 %

Grade	Melting Point	Density	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
304L	1400 °C (2550 °F)	8.0 g/cm3	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
304h	8.0 g/cm3	Psi – 75000 , MPa – 515	1400 °C (2550 °F)	Psi – 30000 , MPa – 205	35 %

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
310/310s	7.9 g/cm3	1402 °C (2555 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
310h	7.9 g/cm3	Psi – 75000 , MPa – 515	1402 °C (2555 °F)	Psi – 30000 , MPa – 205	40 %

Grade	Melting Point	Density	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 316	1400 °C (2550 °F)	8.0 g/cm3	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 316L	1399 °C (2550 °F)	8.0 g/cm3	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
316Ti	8.0 g/cm3	Psi – 75000 , MPa – 515	1399 °C (2550 °F)	Psi – 30000 , MPa – 205	35 %

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
317	7.9 g/cm3	Psi – 75000 , MPa – 515	1400 °C (2550 °F)	Psi – 30000 , MPa – 205	35 %

Grade	Density	Tensile Strength	Melting Point	Yield Strength (0.2%Offset)	Elongation
317L	7.9 g/cm3	Psi – 75000 , MPa – 515	1400 °C (2550 °F)	Psi – 30000 , MPa – 205	35 %

Grade	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
321/321h	8.0 g/cm3	1457 °C (2650 °F)	Psi – 30000 , MPa – 205	Psi – 75000 , MPa – 515	35 %

Grade	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
347/347h	8.0 g/cm3	1454 °C (2650 °F)	Psi – 30000 , MPa – 205	Psi – 75000 , MPa – 515	35 %

Grade	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
347/347h	8.0 g/cm3	1454 °C (2650 °F)	Psi – 30000 , MPa – 205	Psi – 75000 , MPa – 515	35 %

Grade	Tensile Strength ksi (MPa) min	Elongation (% in 50mm) min	Yield Strength 0.2% offset ksi (MPa) min	Hardness (Brinell) MAX	Hardness (Rockwell B) MAX
410	65 (450)	20	30 (205)	217	96

Grade	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
446	7.5 g/cm3	1510 °C (2750 °F)	Psi – 40,000 , MPa – 275	Psi – 75,000 , MPa – 485	20 %

Grade	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
904L	7.95 g/cm3	1350 °C (2460 °F)	Psi – 32000 , MPa – 220	Psi – 71000 , MPa – 490	35 %

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Chemical Composition of SS Buttweld Fittings

Mechanical Properties of SS Butt weld Pipe Fittings

Materials

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