Carbon Steel A105 Weld Neck Flanges

ASME SA105 WNRF Flange Manufacturer in India

Nitron Alloys Overseas has been working in a field of manufacturing piping components for years. We have served a vast customer base over the years with our outstanding products. We are known for providing an exceptional range of CS ASTM A105 Weld Neck Flange in different sizes, shapes, and dimensions. We have always made these Flanges as per the requirements specified by the customers in standard or customized form. The extraordinary quality and operational ability of our Flanges has gained us acknowledgments from our esteemed clients many times. The increase in our sales with every new lot of CS ASTM A105 Weld Neck Flange is proof of the usability of these Flanges and the efforts we have taken to manufacture them.


Nitron Alloys Overseas make Carbon Steel ASTM A105 Weld Neck Flange so that they can be used in pressure systems operating between moderate to high-temperature services. We manufacture them under ASTM specification that covers carbon steel forged and seamless piping components. Our Flanges offer excellent resistance to pitting, crevice corrosion, and stress corrosion cracking due to chlorides in the environments. They are capable of handling heavy loads and high pressure. They are made with upper surface hardness and have good machinability.


CS ASTM A105 Weld Neck Flange from Nitron Alloys Overseas serves for an extended period in any environmental condition, ensuring high functionality. This strength and ability is the result of high-quality raw material and the attention given while manufacturing these Flanges. The raw material is sourced from government authorized suppliers. The dimensional accuracy and finest finishing are achieved by carrying out the manufacturing operations using the latest and upgraded equipment. Also, the wholly manufactured Flanges are sent through the numerous quality tests so that their ability to perform can be assured.


Nitron Alloys Overseas has always given more importance to the relation with the customers and not to the money. Achieving customer’s satisfaction through the fulfillment of their demands has always been our priority. We are selling CS ASTM A105 Weld Neck Flange at affordable prices and delivering them on time through our numerous outlets and distributors across the world. Our promises are unavoidable.



Specification of ASTM A105 Carbon Steel Weld Neck Flanges

Spec bag

Specifications: ASTM A105 / ASME SA105, A105N

imensions:ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size: 1/4" - 48"″

Class/Pressure:150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type: flat face (FF), Raised Face (RF), Ring Type Joint (RTJ).

Types of Carbon Steel A105 Weld Neck Flanges

ASTM A105 Carbon Steel WNRF Flanges

CS ASTM A105 WNRF Flanges

ASTM A105 Carbon Steel WNRTJ Flanges

CS ASTM A105 WNRTJ Flanges

ASTM A105 Carbon Steel Weld Neck Flanges Chemical Composition

Grade C Mn P S Si Cu Ni Cr Mo V
ASTM A105 ≤0.35 0.60-1.05 ≤0.35 ≤0.40 0.10-0.35 ≤0.40 ≤0.40 ≤0.30 ≤0.12 ≤0.08

Mechanical Properties of ASTM A105 Carbon Steel WNRF Flanges

Tensile Strength min. Yield Strength min. Elongation min. Reduction of Area, min. Hardness
MPa ksi MPa ksi % % HBW
485 70 250 36 22 30 137-187

CS ASTM A105 weld neck flanges provide a strong and reliable connection between pipes or equipment, ensuring leak-free performance in high-pressure systems. The long tapered hub of the weld neck flange adds reinforcement, enhancing the overall strength & durability of the joint.

ASTM A105 carbon steel weld neck flanges have a raised face, which provides a sealing surface & helps prevent leakage. The weld neck design offers reinforcement and allows for easy alignment during installation. These flanges also have a beveled end for seamless welding to the adjoining pipe, ensuring a strong and reliable connection.

ASTM A105 carbon steel weld neck flanges are available in a wide range of sizes, typically ranging from ½ inch to 60 inches in diameter. To accommodate different operating conditions & system requirements, they can be obtained in various pressure classes, such as 150, 300, 600, 900, 1500, and 2500.