ASME/ANSI B16.5 & B16.47 Weld Neck Flange

Carbon Steel Weld Neck Flange, Stainless Steel Weld Neck Flange, Alloy Steel Weld Neck Flange Manufacturer In China

Cangzhou Taichang Pipeline Equipment Co,. LTD is a specialised manufacturer of high quality ASME/ANSI/DIN/JIS standard weld neck flanges in China. We offer immediate delivery programs for standard size of carbon steel weld neck flanges and stainless steel weld neck flanges.
Weld neck pipe flanges are connected to the pipe by welding the pipe to the neck of the pipe flange, which helps to pass on the stress from the weld neck to the pipe itself. This also reduces high stress concentration at the base of the hub of the weld neck pipe flanges. Weld neck pipe flanges are generally used in high pressure applications where hot or cold temperatures exist. The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe.
We offer weld neck pipe flanges manufactured at our facility to companies in various industries including shipbuilding. power generation, petrochemical plants, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants and turnkey projectsamong others.

Carbon Steel And Stainless Steel Weld Neck Flange

Specification Chart Of  Weld Neck Flange

Weld Neck Pipe Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Weld Neck Flange Size 1/2″ (15 NB) to 48″ (1200NB)
ASME Flange Pressure Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
JIS Flange Pressure 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
EN/DIN Flange Pressure 6Bar 10Bar 16Bar 25Bar 40Bar,
PN6, PN10, PN16, PN25, PN40
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Weld Neck Flange
Connect Type/ Flange Face Type Flat Face Weld Neck Flange(WNFF), Raised Face Weld Neck Flange(WNRF), Ring Type Joint Weld Neck Flange(WNRTJ),
Value added service CNC Machining, Customised Flanges
Production technique Forged, Heat treated and machined
Uses & application Petrochemicals and acids. Heavy oil refineries. Nuclear power (mostly seamless).
Bitumen upgraders.

Connect Type/ Flange Face Type

Raised Face Weld Neck Flange(WNRF)

Flat Face Weld Neck Flange(WNFF)

Ring Type Joint Weld Neck Flange(WNRTJ)

Carbon Steel And Stainless Steel Weld Neck Flange

Weld Neck Flange

Weld Neck Flange Illustration

Weld Neck Flange Material Grades

Stainless Steel Weld Neck Flange: ASTM A182 F202 F304/304L/304H, F316 /316L F316H F316T1, F310, F321,F904L
Carbon Steel Weld Neck Flange: ASTM A105/A105N, A350 LF, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46,F48,F50, F52, F56, F60, F65,F70.A516.60, 65, 70
Alloy Steel Weld Neck Flange: ASTM A182 F1, F5, F9,F11, F22, F91
Duplex Steel Weld Neck Flange: Duplex, Super Duplex, Nickel Alloys

Weld Neck Flange Process Flow Chart

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All elbow fitings are marked with Grade, heat No. , Size, Degree and our trade mark. On special requests we can also make custom marking on our products.

Quality Assurance

In Taichang all fittings and flanges are subiect to strict inspection at each stage of the production process from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM ASME MSS DIN EN and JIS codes and standards. Upon request, official certified inspection Agencies can be called in to witness the material reports dimensions and quality conformity of products.

Test reports

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third
Party Inspection Report