Threaded Fittings

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Manufacturing technique
Yuanyang provides a wide range of threaded fittings and pipe fittings, offering the possibility for users to choose the correct fitting basing on the applications. Threaded fittings are manufactured exclusively with die forging and machining techniques. Welding or casting treatments are unacceptable.

Production range

Type	Nominal diameter		Pressure range
45/90 degree forged elbow	1/2"~4"	DN15-DN100	SCH80, SCH160 CL2000~CL6000
Forged reducer	1/2"~12"	DN15-DN300	SCH40~SCH160
Forged tee, cross, cap	1/2"~4"	DN15-DN100	SCH40~SCH160

Quality Commitment
At Yuanyang, quality and customer needs are given high priority. We purchase raw steel materials only from well-known brands. In our factory, each production step is under strict control and supervision; and raw materials are marked with different colors so that they are easily-distinguished; 100% spectral detection is conducted for all of the finished fittings before shipping.

Commonly Used Materials

Austenitic stainless steel	Super duplex stainless steel	Nickel-based alloy steel	Carbon steel/alloy steel	Other materials
304 304L 304H 304LN	S31803 S32205	N10276 N04400 N06600	Q235 20# 20G	TA1 TA2 TA3 TC1~TC9
316 316L 316H 316Ti	S32304 S32760	N06600 N06625 N06690	WPB A105 16Mn	LF2 LF3 LF5 LF6 LF10
310S 321 321H 347	S32550 S32750	N08800 N08825 N08904	45# 15CrMo	Al, Ti, martensite
S31254	S33400	N08020 N08810 N08811	A350LF2 A420Gr.WPL6

Manufacturing standards

Seamless steel butt weld pipe fittings:	SH3408
Seamless steel fittings:	GB/T12459
Butt weld elbows for marine use:	GB/T10752-1995
Titanium/titanium alloy seamless and welded fittings:	GB/T27684
Steel butt weld fittings for piping:	JIS B2312
Factory made butt weld fittings:	ASME B16.9
Socket weld fittings made from forged steel:	GB/T14383
Socket weld fittings made from forged steel:	SH3410
Socket weld fittings and threaded fittings:	ASME B16.11
Austenitic stainless steel pipe fittings:	ASTM A403/A403M
Butt weld fittings:	DIN EN 10253-3 (forged Austenitic stainless steel and duplex Austenitic stainless steel with no special inspection requirements)
Butt weld fittings:	DIN EN 10253-4 (forged Austenitic stainless steel and duplex Austenitic stainless steel with special inspection requirements)

Our company can provide threaded pipe fittings according to custom need materials like austenitic stainless steel, duplex stainless steel, carbon steel and alloy steel listed as follows:
304 stainless steel threaded pipe fittings
304L stainless steel threaded pipe fittings
304H stainless steel threaded pipe fittings
304LN austenitic stainless steel threaded pipe fittings
316 stainless steel threaded pipe fittings
316L stainless steel threaded pipe fittings
316H stainless steel threaded pipe fittings
316Ti stainless steel threaded pipe fittings
310S stainless steel threaded pipe fittings
321 stainless steel threaded pipe fittings
321H stainless steel threaded pipe fittings
347 stainless steel threaded pipe fittings
S31254 austenitic stainless steel threaded pipe fittings
S31803 duplex stainless steel threaded pipe fittings
S32205 duplex stainless steel threaded pipe fittings
S32304 duplex stainless steel threaded pipe fittings
S32760 duplex stainless steel threaded pipe fittings
S32550 duplex stainless steel threaded pipe fittings
S32750 duplex stainless steel threaded pipe fittings
S33400 stainless steel threaded pipe fittings
N10276 Nickel alloy threaded pipe fittings
N04400 Nickel alloy threaded pipe fittings
N06600 Nickel alloy threaded pipe fittings
N06625 Nickel alloy threaded pipe fittings
N06690 Nickel alloy threaded pipe fittings
N08800 Nickel alloy threaded pipe fittings
N08825 Nickel alloy threaded pipe fittings
N08904 Nickel alloy threaded pipe fittings
N08020 Nickel alloy threaded pipe fittings
N08810 Nickel alloy threaded pipe fittings
N08811 Nickel alloy threaded pipe fittings
Q235 carbon steel threaded pipe fittings
20# carbon steel threaded pipe fittings
20G carbon steel threaded pipe fittings
WPB carbon steel threaded pipe fittings
A105 carbon steel threaded pipe fittings
16Mn steel threaded pipe fittings
45# carbon steel threaded pipe fittings
15CrMo alloy steel threaded pipe fittings
A350 LF2 carbon steel threaded pipe fittings
A420 grade WPL6 carbon steel threaded pipe fittings
TA1 titanium threaded pipe fittings
TA2 titanium threaded pipe fittings
TA3 titanium threaded pipe fittings
TC1—TC9 titanium alloy threaded pipe fittings
LF2 alloy steel threaded pipe fittings
LF3 alloy steel threaded pipe fittings
LF5 alloy steel threaded pipe fittings
LF6 alloy steel threaded pipe fittings
LF10 alloy steel threaded pipe fittings
Martensite stainless steel threaded pipe fittings