We are a supplier, exporter, manufacturer of stainless steel forged fittings, like NPT Coupling, BS3799 Threaded Tee, 1 1/4" Pipe Union and ASTM A182 F321 Threaded Cap.

What are threaded Fittings?

They are available in sizes up to 4 inch NPS (nominal pipe size), but are not commonly used in sizes above 2 inch.

90 Degree and 45 Degree Elbow
Equal Tee and Reducing Tee
Threaded Cap and Union
Full and Half Coupling
Threaded Plug, Bushing and Nipple
Straight and Reducing Coupling

Threaded Union Dimensions

Size	NPS 1/8" to 4" / DN6 to DN100
Standard	ASME B16.11, BS3799, GB/T14626
Surface	Pickling, Solution Treatment, Anti-rust Oil
Thread Type	NPT, PT, PF, BSPP, BSPT
Alloy Steel Union	ASTM A182 F1, F5, F9, F11, F12, F22, F91
Carbon Steel	ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70
Stainless Steel	ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F347
Duplex Stainless Steel	ASTM A182 F51, F53, F55,F56, S31803, S32205, S32550, S32750, S32760

ASTM A182 F321 Chemical Composition

C	Mn	P	S	Si	Cr	Ni
0.08	2	0.045	0.03	1	17-19	9-12

ASTM A182 F321 Mechanical Properties

Tensile Strength	Yield Strength	Elongation
515 (Mpa)	205 (Mpa)	30 (%)

Threaded Union Weight

The weight chart of threaded unions is available in 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2" and 3".

1 1/4" Forged Steel Union

Marking

We do the marking as " UNION 1 1/4" NPT ASTM A182 F321 178" on pipe union body, it covers name, size, thread, material and heat No.

Surface

Dip the forged steel union in anti-rust oil.

Coat threaded fittings with plastic film.

Package

Lining up 1 1/4" stainless steel pipe unions into cartons.

Pack all cartons in wooden cases and make a list.

Stick a shipping mark on the packages

Application

Power industry
Chemical industry
Oil & gas industry
Petrochemical industry

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