Stainless Steel 409/ 409M Flanges are made up of a martensitic stainless steel that is used for general purpose applications. The material has high wear and tear properties. The material has carbon, manganese, silicon, phosphorus, sulfur, 10.5% chromium, nickel and titanium for stabilization. There are different types such as the ASTM A182 f409 Weld Neck flange, socket weld flange, blind flange, slip on flange and so on. These flanges belong to the ASTM A182 specification which covers flanges for high temperature and high pressure services.
409 Stainless Steel Flanges
ASTM A182 F409M Flange
SS 409 Blind Flange
The flanges also come under different standards such as the ASTM, ASME, ANSI and DIN standards. The sizes of the flanges vary according to the standards and the diameters and wall thicknesses vary as well. The ss 409M blind flange is used in applications where the pipelines have to be closed at one end either permanently or temporarily. The flange material has 380MPa minimum tensile strength and 207MPa minimum yield strength with 207HB max Brinell hardness and 20% elongation rate. The 409M Stainless Steel Pipe Flanges are therefore strong and hard. The flange types vary according to the face types such as the flat face, raised face and the ring type joint. The flanges can also vary as SS 409 Plate Flange, threaded flange, screwed flange or forged flange. Each of these production types have different application usages. There are also special types of flanges such as the AISI 409 Reducing Flanges which connect pipes together while reducing volume of flow.
Specification | Stainless Steel 409 Flange |
Supporting Flange Material: | Ring Joint, Flange Bolts, Gasket |
Design For Size: | ASA Flange, ASME Flange, DIN Flange, PN Flange, JIS Flange, ANSI Flange, BS Flange, EN Flange |
Common Types of SS Flange : | Flanges 150 LB WNRF 600# BLRF Class 300 RTJ Class 900 SORF |
Size Chart : | 1/2″ (15 NB) To 48″ (1200NB) |
Production Process: | Forged, Heat Treated and Machined |
Coating Flange Faces : | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Application: | Fabrication Industry Oil And Gas Industry Nuclear Power Plant Chemical Industry Natural Gas Industry Water Pipeline Industry |
Stainless Steel 304L Flange Standards: | ASME B16.38 Flange, EN-1092 Flange, BS10 Flange, DIN Flange, PN Flange, ASME B16.47 (Series A, Series B) Flange, JIS Flange, ISO Flange, GOST Flange, UNI Flange, AWWA Flange, MSS SP44 Flange, ASME B16.5 Flange |
Pressure Rating Table: | Class 150 LBS, Class 300 LBS, Class 600 LBS, Class 900 LBS, Class 1500 LBS, Class 2500 LBS |
Connect Type Type: | LMF Flange, SMF Flange, LJF Flange, RF Flange, FF Flange, RTJ Flange |
Flange Machining Equipment: | Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine, Press machine etc |
ASTM A182 F409 Blind Flange
ASTM 409m 150 Flange
Stainless Steel ASTM A182 F409 Threaded Flange
ASTM A182 409 SS Socket Weld Flange
SA182 F409 Welding Neck Flange
ASME SA182 F409 Spade Flange
ASTM A182 Type 409 Plate Flange
ASTM A182 409m Slip On Flange
ASTM F409 Stainless Steel Orifice Flange
SA182 Gr F409 Spacer Flange
SS UNS S40900 Blank Flange
Stainless Steel F409m Blank Flange Rotatable
Nominal Pipe Size | Drilling | Length of Bolts | Approximate Weight in Pounds |
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Diameter of Bolt Circle |
Number of Bolts | Diameter of Bolts | Diameter of Holes |
Stud Bolts | Machine Bolts 1/16” R.F. | Welding Neck | Slip-on Threaded | Lap Joint | Blind | ||
1/16” Raised Face | Ring Joint | ||||||||||
1/2 | 2-3/8 | 4 | 1/2 | 5/8 | 2-1/4 | 1-3/4 | 2 | 2 | 2 | 2 | |
3/4 | 2-3/4 | 4 | 1/2 | 5/8 | 2-1/4 | 2 | 2 | 2 | 2 | 2 | |
1 | 3-1/8 | 4 | 1/2 | 5/8 | 2-1/2 | 3 | 2 | 2 | 2 | 2 | 2 |
1-1/4 | 3-1/2 | 4 | 1/2 | 5/8 | 2-1/2 | 3 | 2-1/4 | 4 | 3 | 3 | 3 |
1-1/2 | 3-7/8 | 4 | 1/2 | 5/8 | 2-3/4 | 3-1/4 | 2-1/4 | 5 | 3 | 3 | 4 |
2 | 4-3/4 | 4 | 5/8 | 3/4 | 3 | 3-1/2 | 2-3/4 | 9 | 5 | 5 | 5 |
2-1/2 | 5-1/2 | 4 | 5/8 | 3/4 | 3-1/4 | 3-3/4 | 3 | 11 | 7 | 7 | 7 |
3 | 6 | 4 | 5/8 | 3/4 | 3-1/2 | 4 | 3 | 14 | 8 | 8 | 9 |
3-1/2 | 7 | 8 | 5/8 | 3/4 | 3-1/2 | 4 | 3 | 15 | 11 | 11 | 13 |
4 | 7-1/2 | 8 | 5/8 | 3/4 | 3-1/2 | 4 | 3 | 16 | 13 | 13 | 19 |
5 | 8-1/2 | 8 | 3/4 | 7/8 | 3-3/4 | 4-1/4 | 3-1/4 | 21 | 15 | 15 | 21 |
6 | 9-1/2 | 8 | 3/4 | 7/8 | 3-3/4 | 4-1/4 | 3-1/4 | 25 | 19 | 19 | 28 |
8 | 11-3/4 | 8 | 3/4 | 7/8 | 4 | 4-1/2 | 3-1/2 | 40 | 30 | 30 | 48 |
10 | 14-1/4 | 12 | 7/8 | 1 | 4-1/2 | 5 | 3-3/4 | 56 | 42 | 42 | 70 |
12 | 17 | 12 | 7/8 | 1 | 4-1/2 | 5 | 4 | 86 | 64 | 64 | 105 |
14 | 18-3/4 | 12 | 1 | 1-1/8 | 5 | 5-1/2 | 4-1/4 | 111 | 85 | 99 | 135 |
16 | 21-1/4 | 16 | 1 | 1-1/8 | 5-1/4 | 5-3/4 | 4-1/2 | 141 | 94 | 128 | 176 |
18 | 22-3/4 | 16 | 1-1/8 | 1-1/4 | 5-3/4 | 6-1/4 | 4-3/4 | 153 | 120 | 146 | 214 |
20 | 25 | 20 | 1-1/8 | 1-1/4 | 6 | 6-1/2 | 5-1/4 | 188 | 155 | 185 | 284 |
24 | 29-1/2 | 20 | 1-1/4 | 1-3/8 | 6-3/4 | 7-1/4 | 5-3/4 | 270 | 210 | 260 | 398 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
SS 409/ 409M | 0.15 max | 1.0 max | 1.0 max | 0.040 max | 0.030 max | 11.5 – 13.5 | – | 0.50 max | – |
Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
409 | 65 (450) | 30 (205) | 20 | 217 | 96 |
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SS 409/409M | 1.4006 | S41000 | SUS 410 | 410S21 | – | – | X12Cr13 |