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Kalikund Steel & Engineering Company (KSEC) is a leading manufacturer, supplier, and distributor of AISI 4130 Flanges. AISI 4130 grade is a low-alloy steel and contains chromium and molybdenum as its strengthening elements, hence making it corrosion resistance, tough, and weldable. AISI 4130 API 6A 10K RTJ Weld Neck Flange supplier A flange is a plate or ring which forms a rim at the tip of a pipe when fastened to it. We bring forth a wide range of AISI 4130 Flanges that are manufactured by certified experts in the industry. AISI 4130 Flanges have great resistance to sea water borne corrosion as they contain significant amount of stainless steel iron and so it is used in Rig Projects, Deep Water riser system, Manifold Equipments, Debris / Junk Catcher Manifold, UBD Trailor Package, Well Test Equipments, Pipe Line end Manifolds, and many more.



Some amazing features of AISI 4130 Flange are long service life, low maintenance cost, clean finish and is also available in all sizes at affordable rates. The standard range of sizes of AISI 4130 Flange is 1/2″ to 48″ and other sizes also as per the customer’s requirement. AISI 4130 API 6A flanges manufacturer. Our AISI 4130 Flanges are used in wide range applications such as in manufacturing of Choke & Kill manifolds including Control Panel, Mud Manifolds, and Cement Manifolds, manufacturing of Mud / Gas Separators, Oil & Gas and Oil Exploration industries, production of Pipe Line End Terminations and Manifold Equipment’s. At Kalikund Steel & Engineering Company (KSEC), customer satisfaction is at top most priority and so we keep a keen eye on the newer technologies coming up in the market.

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AISI 4130 Flanges Specification

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

Size : 1", 2", 3", 4", 5", 6", 8", 3.5" OD, 4.5" OD, 5.5" OD and as per client design

Thickness :Schedule 80, XS, 120, 160, XXS, higher thickness as per client requirement.

Pressure :7.5K, 10K, 15K, 22.5K and more as per client drawing and requirement.

Form : Slip On Flanges, Weld Neck Flanges, Socket Weld Flanges, Blind Flanges, Long Weld Neck Flanges, Orifice Flanges.

Delivery Condition : Annealed, Normalized, Stress Relieved, Quenched & Tempered.

Product Specification Level (PSL) : PSL 1, PSL 2, PSL 3.

Supplementary Requirement : NACE MR0175 / MR0103 ISO 3183 / NACE TM0284 YS - MIN 85,000, UTS - 1,10,000 WITHSTANDING 15,000 PRESSURE.



AISI 4130 Flanges Equivalent Grades

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
AISI 4130 G41300 1.7218 - 25CrMo4 JIS G4105 BS 970 -

Chemical Composition of AISI 4130 Flanges

Grade Ni C Mo Mn Si Fe Cu S P Cr
AISI 4130 0.50 max 0.28-0.33 0.15-0.25 0.40-0.60 0.15-0.35 97.3-98.22 - 0.025 MAX 0.035 MAX 0.80-1.10

Mechanical Properties of AISI 4130 Flanges

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.85g/cm3 1432 C 460 MPa 560 MPa 21.50 %

AISI 4130 Flanges

AISI 4130 Flanges

Alloy Steel 4130 Flanges

ANSI B16.9 4130 Flanges


Price Of AISI 4130 Flanges


Export Countries

Malaysia, Singapore, Saudi Arabia, Colombia, Bangalore, Poland, Africa, Russia, Venezuela, Muscat, Peru, Egypt, Indonesia, Kuwait, Oman, Sharjah, Pimpri Chinchwad, Visakhapatnam, Thailand, Riyadh, UAE, Norway, Ecuador, Brazil, Coimbatore, Italy, Abu Dhabi, Mexico, Pune, Brazil, UK, Dammam, Chile, Texas, United Kingdom, Dubai, Canada, Turkey, Houston, Qatar, Angola, Gujarat, America, Hyderabad, Spain, Jordan, Mumbai, denmark, Baroda, Costa Rica, United States of America, Nigeria, KSA, Ghana, Bahrain, Chennai, Bangalore, Jamnagar, Portugal, United Arab Emirates, Turkey, Himachal Pradesh, Spain, USA, India, Netherlands, Argentina, etc