ANSI B16.5 Class 400 Flanges Manufacturer and Supplier in Houston, USA

Shawn Flanges is a reliable manufacturer and supplier of ANSI B16.5 Class 400 Flanges, located in Houston, USA. Known for our precision engineering and trustworthy service, we focus on crafting high-quality flanges tailored for high-pressure piping systems. Our Class 400 flanges adhere to all ANSI B16.5 standards and are made from top-notch materials to guarantee strength, leak resistance, and long-lasting durability. We cater to the oil & gas, petrochemical, power generation, and industrial sectors, offering a diverse selection of sizes, face types, and materials. With quick delivery and strict quality control, we proudly serve clients throughout the U.S. and beyond.

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400 LBS Flanges

Raised Face Class 400 Flanges

ANSI B16.5 400 LBS Pipe Flange

ANSI B16.5 Class 400 flanges are generally made from carbon steel (like ASTM A105), stainless steel (such as ASTM A182 F304/F316), or alloy steel, depending on the specific service needs. The carbon steel version typically contains carbon (≤0.35%), manganese (0.60–1.05%), along with small amounts of silicon, phosphorus, and sulfur. These flanges boast impressive mechanical properties, including high tensile strength (≥485 MPa), yield strength (≥250 MPa), and outstanding impact resistance. They are engineered to handle working pressures of up to 400 psi at room temperature, providing enhanced sealing performance even under the fluctuating loads and temperature changes typical in high-pressure systems.

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Largest ANSI B16.5 Class 400 Flanges Supplier in Houston, USA

Shawn Flanges, a leading supplier in Houston, USA, offers an extensive selection of ANSI B16.5 Class 400 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.

Contact us to get a quick quote for your requirement.

We offer These Flanges as per DIN, ISO, JIS or ANSI Standard.

ANSI B16.5 Class 400 Flanges Specification

Size Range	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Standards	B16.47 Series A & B, ANSI/ASME B16.5, BS4504, B16.48, EN-1092, BS 10, DIN, ANSI Flanges, BS Flanges, ASME Flanges, EN Flanges, DIN Flanges, GOST Flanges.
DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI	6Bar 10Bar 16Bar 25Bar 40Bar
EN	6Bar 10Bar 16Bar 25Bar 40Bar
Main Types	Threaded / Forged / Plate /Screwed
Flange supporting material	Ring Joint, Gasket, Flange Bolts
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Most Common Types	Slip-On Ring Flange (SORF), Class 400 Weld Neck Ring Flange (WNRF), Class 400 Threaded Ring Flange, Class 400 Socket Weld Ring Flange (SWRF), Class 400 Blind Ring Flange (BLRF), Class 400 Ring Type Joint Flange (RTJF), Class 400 Lap Joint Ring Flange (LJRF), Class 400
Production technique	Forged, Heat treated and machined
Connect Type/ Flange Face Type	Ring Type Joint (RTJ), Raised Face (RF),Large Male-Female (LMF), Flat Face (FF),Small Male-Female (SMF), Lap-Joint Face (LJF), Large Tongue & Groove, Small Tongue, Groove
Special design	As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations Class 400 Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment	Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc
Origin	Indian / West Europe / Japan / USA / Korean
Specialized Manufacturer of	Class 400 Blind Flanges Class 400 Large Diameter Flange Class 400 Table Flanges Class 400 Sorf Flange Class 400 Socketweld Flanges Class 400 Threaded Flanges Class 400 Weld Neck Flanges Class 400 Slip-On Flanges Class 400 Loose Flanges Class 400 AS 4087 Water Flanges Class 400 Lap Joint Flanges Class 400 Plate Flanges Class 400 Orifice Flanges
Standard	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings AS 2129: Table D; Table E; Table H B.S: BS4504 , BS3293, BS1560, BS10 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 German (DIN) American standard (ANSI) Any other specialized flanges British standard (BS) The other standard : AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276 DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638

ANSI B16.5 Class 400 Flanges Dimensions

CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
400 lb	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

ANSI B16.5 Class 400 flanges are widely utilized in high-pressure piping systems across various industries, including oil & gas, refining, chemical processing, power generation, and marine applications. These flanges play a crucial role in connecting pipes, valves, pumps, and equipment, ensuring leak-proof joints that can endure pressures of up to 400 psi. Common flange types include weld neck, blind, slip-on, and threaded configurations, tailored to meet specific installation needs.

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Types of ANSI B16.5 Class 400 Flanges

Are Custom Sizes Available for 400 LBS Flanges?

Yes, we offer custom sizes for ANSI B16.5 Class 400 Flanges to meet specific project needs. Our team at Shawn Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@shawnflanges.us.

Material Testing

We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.