Stainless Steel 310 Flanges | ASTM A182 F310 | UNS S31000 | DIN 1.4841

Flanges made of stainless steel grade 310, also known as UNS S31000, are referred to as Stainless Steel 310 Components. A high-temperature austenitic stainless steel with remarkable high-temperature strength and resistance to oxidation, sulfidation, and carburization is known as stainless steel 310. The following are some salient characteristics and uses of stainless steel 310 flanges:

Oxidation Resistance: At high temperatures, 310 stainless steel develops a protective oxide scale that offers good oxidation resistance in air and high-temperature situations.

Carburization and Sulfidation Resistance: 310 stainless steel is appropriate for use in furnace and heat treatment applications due to its resistance to sulfidation and carburization.

High-Temperature Strength: Stainless Steel 310 offers excellent high-temperature strength and resistance to thermal cycling. It can withstand temperatures up to 2100°F (1150°C) in continuous service.

Weldability is a crucial factor in the fabrication of intricate structures and components because stainless steel 310 is easily weldable using conventional welding techniques.

Durability: Stainless Steel 310 flanges are strong and able to bear pressure and mechanical stress.

Versatility: These flanges are suitable for a variety of high-temperature uses in a number of different industries.

Low Magnetic Permeability: Because of its low magnetic permeability, 310 stainless steel is a good choice for some applications where the magnetic characteristics must be kept to a minimum.

Because of its remarkable high-temperature characteristics and oxidation resistance, stainless steel 310 flanges are preferred for use in severe situations. Consider the operating temperature, pressure, and corrosion considerations when choosing Stainless Steel 310 flanges for a particular application to make sure they meet the required performance standards.

Specification 310 stainless steel flange

Standards	ANSI/ASME B16.5, B16.48, ANSI Flanges, GOST Flanges, DIN Flanges, EN-1092, B16.47 Series A & B, ASME Flanges, EN Flanges, AWWA Flanges, BS Flanges.
JIS Standard	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
DIN FLANGES	DIN 2527, 2627, 2631, 2656, 2576, 2673, 2629, 2628, 2566, 2641, 2637, 2655, 2634, 2636, 2632, 2633, 2638, 2642, 2573, 2635.
Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Types	Threaded, Plate, Screwed, Forged.
Supporting material	Gasket, Ring Joint, Flange Bolts
Size range	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Production technique	Forged, machined and Heat treated
Available Flange Type	Weld Neck Flanges, RTJ Flanges, Slip On Flanges, Spectacle Blind Flanges, Flanges Gaskets, Square Flanges, Standard Insert Flanges, High Hub Blinds Flanges, Flat Flanges, forged flanges, Weldo / Nipo Flanges, Jacket Insert Flanges, Tongue groove Flanges, Blind Flanges, Socket Weld Flanges, Large diameter Flanges, Long Weld Neck Flanges, Spacer Blinds, SWRF Flanges, SORF Flanges, Angle Face Rings Flanges, Spades Ring Spacers Flanges, WNRF Flanges, Screwed Flanges, Insert Flanges, flanges bolts, cf flange, Lap Joint Flanges, ASME B16.36 Orifice Flanges, Plate Flange, Expander Flanges, Ring Type Joint Flanges, Loose Flanges, Reducing Flanges, puddle flange, Threaded Flanges, blank flange, vacuum flange.
Connect Type/ Flange Face Type	Ring Type Joint (RTJ), Flat Face (FF), Tongue & Groove, Small Male-Female (SMF), Lap-Joint Face (LJF), Raised Face (RF), Large Male-Female (LMF), Small Tongue.
Custom design	As per your drawing
Test	Direct-reading Spectrograph, X-ray detector, UItrasonic flaw detector, Magnetic particle detector, Hydrostatic testing machine.
Origin	Indian / USA / Korean / West Europe / Japan
Pressure Class	PN 6 TO PN 100
Thickness	Normal Pipe Size ≤ 18
Bore Diameter	Normal Pipe ≤ 10
High Temperature	Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature	Above -29 Degree C (−20°F)
Coating/Surface Treatment:	Zinc Plated, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized.
European/African/Russian Standard Flanges	Available
Gaskets Types	Full Face, Metallic Ring, Flat Ring Gasket
Marking Standard	Name of Manufacturer
	Schedule
	Type of Flange Facing
	Pressure Class
	Nominal Pipe Size, etc
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
	Raw Materials Certificate
	100% Radiography Test Report
	Third Party Inspection Report, etc

Flange Type Available

Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
Stainless Steel 310 Flanges	1.4841	S31000	SUS 310	310S24	20Ch25N20S2	-	X15CrNi25-20
Stainless Steel 310S Flanges	1.4845	S31008	SUS 310S	310S16	20Ch23N18	-	X8CrNi25-21
Stainless Steel 310H Flanges	-	S31009	-	-	-	-	-

Chemical Properties

ELEMENT	Stainless Steel 310 Flanges
NI	19.00 – 21.00
CR	24.00 – 26.00
C	0.015 maximum
MN	2.00 maximum
P	0.020 maximum
S	0.015 maximum
SI	0.15 maximum
MO	0.10 maximum
FE	54.7 minimum

Mechanical Properties

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

Stainless Steel 310 Flanges Dimensions Class-300

Nominal Pipe Size NPS (inches)	Class 400
	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Diameter of Bolt Holes (inches)	Bolt Circle (inches)
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-3/4	4	1/2	0.62	2-5/8
3/4	4-5/8	4	5/8	0.75	3-1/4
1	4-7/8	4	5/8	0.75	3-1/2
1-1/4	5-1/4	4	5/8	0.75	3-7/8
1-1/2	6-1/8	4	3/4	0.88	4-1/2
2	6-1/2	8	5/8	0.75	5
2-1/2	7-1/2	8	3/4	0.88	5-7/8
3	8-1/4	8	3/4	0.88	6-5/8
3-1/2	9	8	7/8	1	7-1/4
4	10	8	7/8	1	7-7/8
5	11	8	7/8	1	9-1/4
6	12-1/2	12	7/8	1	10-5/8
8	15	12	1	1.12	13
10	17-1/2	16	1-1/8	1.25	15-1/4
12	20-1/2	16	1-1/4	1.38	17-3/4
14	23	20	1-1/4	1.38	20-1/4
16	25-1/2	20	1-3/8	1.5	22-1/2
18	28	24	1-3/8	1.5	24-3/4
20	30-1/2	24	1-1/2	1.62	27
24	36	24	1-3/4	1.88	32

SS 310 Flange Pressure Rating

Class	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
Pressure In psig	450	1125	1500	2225	3350	5575	9275
Temp oF	Maximum Allowable Pres psig
-20 to 100	285	740	990	1480	2220	3705	6170
200	260	675	900	1350	2025	3375	5625
300	230	655	875	1315	1970	3280	5470
400	200	635	845	1270	1900	3170	5280
500	170	600	800	1200	1795	2995	4990
600	140	550	730	1095	1640	2735	4560
650	125	535	715	1075	1610	2685	4475
700	110	535	710	1065	1600	2665	4440
750	95	505	670	1010	1510	2520	4200
800	80	410	550	825	1235	2060	3430
850	65	270	355	535	805	1340	2230
900	50	170	230	345	515	860	1430
950	35	105	140	205	310	515	860
1000	20	50	70	105	155	260	430

310 Stainless Steel Flanges Schedule Chart

Nominal Pipe Sizes (NPS)	Slip On (SORF)	Threaded (NPT)	Socket Weld (SWRF)	Lap Joint (Loose)	Blind (BLRF)	Weld Neck (WRNR)
½	1	1	2	1	2	2
¾	2	2	2	2	2	2
1	2	2	2	2	2	3
1¼	3	3	3	3	3	3
1½	3	3	3	3	4	4
2	5	5	5	5	5	6
2½	8	8	8	8	7	10
3	9	9	9	9	9	11.5
3½	11	12	11	11	13	12
4	13	13	13	13	17	16.5
5	15	15	15	15	20	21
6	19	19	19	19	27	26
8	30	30	30	30	47	42
10	43	43	43	43	70	54
12	64	64	64	64	123	88
14	90	90	90	105	140	114
16	106	98	98	140	180	140
18	130	130	130	160	220	165
20	165	165	165	195	285	197
22	185	185	185	245	355	225
24	220	220	220	275	430	268