Adinox Overseas is a well known and familiar brand in industrial piping industry and has been accepted by the world as a leading Threaded Union Supplier & Manufacturer. Precision, performance and long term reliability are what has made our Threaded Unions most popular and preferred in oil & gas, petrochemical, marine, chemical processing and power generation industries. Created to meet the global scale of ASTM A105 and UNK03504 standards, the part can be described as having set out to provide incredible solidity of use and installability of high-pressure piping systems.

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A Threaded Union is a mechanical joining device that joins two pipes so that they can be dismantled and not deformed easily. Compared with welded joints, Threaded unions perform best in heavy maintenance applications and can provide a reusuable and dependable joint in both small and large scale piping systems. Threaded unions cannot be fitted haphazardly and at Adinox Overseas we produce threaded unions which are easy to fit, have dimensions which fit well and have a high tensile strength. With us, the union is meticulously checked by an in-house quality assurance unit which ascertains structural soundness and international standards of quality.

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The ASTM A105 Threaded Union is well recognized, and is made of carbon steel with high hardness and strength. It also does well in harsh conditions such as high temperatures and pressures, and provides high mechanical stress and corrosion resistance. UNS K03504 refers to the chemical composition of the carbon steel based alloy treatment which is considered to have a number of elements like manganese, silicon, sulfur and phosphorus which help in the overall mechanical properties determination. This standard renders our threaded unions suitable in hydraulic systems, steam lines and high pressure conveyance of fuel or chemicals.

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In addition to ASTM A105, we also offer threaded unions in other materials such as stainless steel (ASTM A182 F304/F316), alloy steel (ASTM A182 F5/F9/F11), and duplex steel (ASTM A182 F51/F53). These variations are available under UNS numbers like S30400, S31600, K41545, S31803, and more, catering to the increasing demand for corrosion-resistant and high-strength fittings. We also provide full documentation including material test certificates, third-party inspection reports, and compliance documents to ensure complete transparency and traceability.

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Specifications Of Threaded Union

Specifications	Forged Threaded Union
Dimension Specification	ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799
Threaded Union Forged Fittings Thread	NPT, BSPT, BSPP
Threaded Union FittingsType	DN15-DN1200
End	Threaded, Welding, JIC
Threaded Union Fittings Pressure Rating	Threaded end-2000lb/ 3000lb/ 6000lbs Threaded Union
Connection	Welding
Bending Radius	R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Threaded Union
Size Range	1/8" NB TO 4" NB
Manufacturing process	Push, Press, Forge, Cast, etc.
Threaded Union Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Key markets and industries for Threaded Union Fittings	Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.
Application	Threaded Union To Connect Pipe & Tubes in Petroleum, Power, Chemical, Construction, Gas, Metallurgy, Shipbuilding etc

Dimensions of Threaded Union

Normal Pipe Sizes	Minimum Length of Thread		Outside Diameter of Band D	Center to End A	Minimum Weight
Normal Pipe Sizes	B	J	Outside Diameter of Band D	Center to End A	Minimum Weight
1/2	10.9	13.6	38	33	4.09
3/4	12.7	13.9	46	38	4.32
1	14.7	17.3	56	44	4.98
1.1/4	17	18	62	51	5.28
1.1/2	17.8	18.4	75	60	5.56
2	19	19.2	84	64	7.14
2.1/2	23.6	28.9	102	83	7.65
3	25.9	30.5	121	95	8.84
4	27.7	33	152	114	11.18

Application Of Industries

Power Plants

Aerospace

Refineries

Construction

Oil & Gas

Sugar

Chemical

Petrochemical

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