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Stainless Steel 409 & 409M Flanges/ SS UNS S40900 Flanges
SS 409M Pipe Flanges Supplier, Stainless Steel UNS S40900 Orifice Flange, Supplier of ASTM A182 WP 409 Stainless Steel Slip On Flanges, SS WERKSTOFF NR. 1.4541 Socket Weld Flanges Exporter in India.
ASTM A182 Stainless Steel Welded Flanges, Stainless Steel 409 RTJ Flange, SS WP 409 Nipolet Flange Exporters and Suppliers.
Detailed Information

Prashaant Steel & Alloys is a well-known maker and retailer of Flanges for Stainless Steel 409 in the market. We produce ASME SA182 SS 409M Flanges that follow global and national quality requirements by using the best quality raw materials. The ASTM A182 SS 409 Flanges have a high corrosion and oxidation resistance thanks to the right mix of nickel, chromium, and titanium. Except at high temperatures, the ASME SA182 SS 409M Flanges are produced to have improved performance at low temperatures. Flanges of this kind can tolerate temperatures of up to 870 degrees Celsius. The ASTM A182 SS 409 Flanges have excellent machinability and production characteristics. Prashaant Steel & Alloys is known for manufacturing high-quality goods that match or exceed our customers’ needs. Prashaant Steel & Alloys is known for its stainless steel 409 Flanges. We manufacture and sell a wide range of ASTM A182 SS 409 Flanges. ASME SA182 SS 409M Flanges preserve strength and corrosion resistance even when exposed to high temperatures. Flanges of this kind can tolerate temperatures of up to 870 degrees Celsius. ASTM A182 SS 409 Flanges can be welded using any conventional process, including submerged arc. Welding fillers such as AWS ER347 bare wire and E347 coated electrodes can be used. Flanges ASTM A182 SS 409 are easy to make and have reasonable machinability.
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.

Stainless Steel 409 / 409M Flanges 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


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

409 SS Blind Flange Chemical Structure











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

ASTM A182 F409 Flanges Mechanical Analysis


Tensile Strength ksi (MPa) min

Yield Strength 0.2% offset ksi (MPa) min

Elongation (% in 50mm) min

Hardness (Brinell) MAX

Hardness (Rockwell B) MAX


65 (450)

30 (205)




Equivalent Material of 409M SS Slip on flanges









SS 409/409M



SUS 410



Types of Stainless Steel 409/ 409M Flanges:

Stainless Steel 409 Flanges

Stainless Steel 409M EN 1092-1 Flanges

Stainless Steel 409 BS 4504 Flanges

Stainless Steel 409M Forged Flanges

Stainless Steel UNS S40900 Flanges

Stainless Steel 409 Slip on Flanges

SS 409M Flat Flange Suppliers

ANSI 409 Stainless Steel Blind Flange

SS UNS S40909 Weld Neck Flanges Dealer

SS 409 Socket weld Flanges Exporter

SS 409M Long Weld Neck Flanges Stockholder

Steel 409 Threaded Flanges Distributors

Stainless Steel SUS 409 Reducing Flanges

SS 409M Ring Type Joint Flanges Manufacturer

Stainless Steel DIN 1.4547 Orifice Flange

Stainless Steel DIN 1.4878 Spectacle Blind Flanges

Stainless Steel 409 WNRF Flange

Stainless 409M SORF Flanges

ANSI B16.5 SS 409M RTJ Flanges

SS 409 Screwed Flanges Stockist

ASTM A182 SS 409M Lap Joint Flanges

ASME SA182 SS 409 BLRF Flange

Stainless Steel 409 Raised Face Flanges

409M SS Nipoflange

A182 SS 409M Square Flanges

ASME SA182M SS 409 SWRF Flange

Steel 409 Tongue & Groove Flanges

SS 409M Male & Female Flanges

Stainless Steel 409 DIN Flanges

SS 409M ASME B16.5 Flanges

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