Types of Stainless Steel Equal Tee

zhao77jie — Tue, 25 Jun 2024 08:49:30 +0000

Stainless steel equal tee is commonly used pipe fittings in pipeline systems. They are mainly used at the connections of pipeline systems and play a role in changing direction, converging, or diverting flow. Stainless steel tees are an important type of pipeline connector, and their excellent performance and wide range of applications make them an indispensable part of pipeline systems.

According to the shape, stainless steel tees can be divided into equal tee and reducing tee.

Stainless Steel Equal Tee

Stainless Steel Reducing Tee

Stainless steel Equal tee with the same outer diameter for main and branch pipes. Reducing tee refer different diameters between the main and branch pipes.In this article,we will introduce stainless steel equal tee.

How to Classify Stainless Steel Equal tee

Stainless steel equal tee can be classified according to different connection methods. Such as butt weld tee, threaded tee and socket tee.

Stainless Steel Butt Weld Tee

Stainless steel butt weld tees are pipe fittings that connect the main and branch pipes through welding, thereby achieving branch connections in the pipeline system. Due to its good sealing performance at the welded joints and low risk of leakage, it is widely used in various pipeline systems.

Shape Type	Equal Tee and Reducing Tee
Size Range	1/2″ – 80″ / DN15 – 2000
Thickness Schedule	SCH 10 – SCH 160, XXS
Standard	GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409， ANSI / ASME B16.9, MSS SP 43, JIS B2311/2312/2313, DIN2605/2615/2616/2617, EN10253
Stainless Steel	ASTM A403 WP304/304L/304H, 316/316L, 310S, 317,347, 904L, A815 S32205, S31803, 32750, 32760

Dimension of ASME B16.9 Butt Weld Tee

Nominal Size		Outside Diameter at Bevel	Center to End
DN	NPS	OD1 X OD2	C	M
15	1/2	21.3	25	25
20	3/4	26.7	29	29
25	1	33.4	38	38
32	1-1/4	42.2	48	48
40	1-1/2	48.3	57	57
50	2	60.3	64	64
65	2-1/2	73.0	76	76
80	3	88.9	86	86
90	3-1/2	101.6	95	95
100	4	114.3	105	105
125	5	141.3	124	124
150	6	168.3	143	143
200	8	219.1	178	178
250	10	273.0	216	216
300	12	323.8	254	254
350	14	355.6	279	279
400	16	406.4	305	305
450	18	457.0	343	343
500	20	508.0	381	381
550	22	559.0	419	419
600	24	610.0	432	432
650	26	660.0	495	495
700	28	711.0	521	521
750	30	762.0	559	559
800	32	813.0	597	597
850	34	864.0	635	635
900	36	914.0	673	673
950	38	965.0	711	711
1000	40	1016.0	749	749
1050	42	1067.0	762	711
1100	44	1118.0	813	762
1150	46	1168.0	851	800
1200	48	1219.0	889	838
1300	52	1321.0	965	914
1400	56	1422.0	1041	965
1600	64	1626.0	1194	1092
1700	68	1727.0	1270	1168
1800	72	1829.0	1320	1245
1900	76	1930.0	1422	1320
2000	80	2032.0	1499	1397

Stainless Steel Threaded Tee

Stainless steel threaded tee is a pipeline accessory made of stainless steel material forged and connected through threaded connection. It’s characteristics include strong corrosion resistance, easy installation, low maintenance cost. They are suitability for small diameter high-pressure pipeline systems below 4 inches.

Type	Equal Tee and Reducing Tee
Size	1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″
Class	Class 2000, 3000, 6000
Grade	ASTM A182 F304/F304L/F316/F316L/F321/F347

Dimension of ASME B16.11 Threaded Tee

DN	NPS	A			H
DN	NPS	2000LB	3000LB	6000LB	2000LB	3000LB	6000LB
6	1/8	21	21	25	22	22	25
8	1/4	21	25	28	22	25	33
10	3/8	25	28	33	25	33	38
15	1/2	28	33	38	33	38	46
20	3/4	33	38	44	38	46	56
25	1	38	44	51	46	56	62
32	1-1/4	44	51	60	56	62	75
40	1-1/2	51	60	64	62	75	84
50	2	60	64	83	75	84	102
65	2-1/2	76	83	95	92	102	121
80	3	86	95	106	109	121	146
100	4	106	114	114	146	152	152

Stainless Steel Socket Weld Tee

The socket connection method makes the installation process of stainless steel socket tees relatively simple. After inserting the connecting fittings into each end of the tee, they can be fixed by welding or fusion. Without the need for complex processes and tools, improving installation efficiency.

Shape	Straight and Reducing Fittings
Size Range	1/8″- 4″ / DN6 – DN100
Pressure Rating	Class 3000, 6000, 9000.
Stainless Steel	ASTM A182 F304 / 304L / 304H, 316 / 316L, 321, 310S, 317, 347, 904L
Duplex Stainless Steel	ASTM A182 F51, F53, F44

Dimension of ASME B16.11 Socket Weld Tee

DN	NPS	B	C						A			G
DN	NPS	B	3000		6000		9000		3000	6000	9000	3000	6000	9000
6	1/8	10.9	3.18	3.18	3.96	3.43	–	–	11.0	11.0	–	2.41	3.15	–
8	1/4	14.3	3.78	3.30	4.60	4.01	–	–	11.0	13.5	–	3.02	3.68	–
10	3/8	17.7	4.01	3.5	5.03	4.37	–	–	13.5	15.5	–	3.20	4.01	–
15	1/2	21.9	4.67	4.09	5.97	5.18	9.53	8.18	15.5	19	25.5	3.73	4.78	7.47
20	3/4	27.3	4.09	4.27	6.96	6.04	9.78	8.56	19	25.5	28.5	3.91	5.56	7.82
25	1	34.0	5.69	4.98	7.92	6.93	11.38	9.96	22.5	27.0	32.0	4.55	6.35	9.09
32	11/4	42.8	6.07	5.28	7.92	6.93	12.14	10.62	27.0	32.0	35.0	4.85	6.35	9.70
40	11/2	48.9	6.35	5.54	8.92	7.80	12.7	11.12	32.0	38.0	38.0	5.08	7.14	10.15
50	2	61.2	6.93	6.04	10.92	9.50	13.84	12.12	38.0	41.0	54.0	5.54	8.74	11.07
65	21/2	73.9	8.76	7.62	–	–	–	–	41.0	–	–	7.01	–	–
80	3	89.9	9.52	8.30	–	–	–	–	57.0	–	–	7.62	–	–
100	4	115.5	10.69	9.35	–	–	–	–	66.5	–	–	8.56	–	–

Material Feature of Stainless Steel

Stainless steel tees are produced using stainless steel as the raw material. Common stainless steel materials include SS304, SS316, SS321, etc. At the same time, its environmental and health characteristics also meet the requirements of sustainable development in modern society.

Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Ni	Cr	Mo	N
SS304L	MIN						8.00	18.00	\	\
SS304L	MAX	0.035	2.00	0.045	0.030	1.00	13.00	20.00	\	\
SS316L	MIN						10.00	16.00	2.00	\
SS316L	MAX	0.035	2.00	0.045	0.030	1.00	14.00	18.00	3.00	\
SS317L	MIN						11.00	18.00	3.00	\
SS317L	MAX	0.035	2.00	0.045	0.030	1.00	15.00	20.00	4.00	\
SS321	MIN						9.00	17.00	\	\
SS321	MAX	0.080	2.00	0.045	0.030	1.00	12.00	19.00	\	0.10
SS347	MIN						9.00	17.00	\	\
SS347	MAX	0.080	2.00	0.045	0.030	1.00	13.00	19.00	\	\

Mechanical Properties

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %
ASTM A312 TP304L	485 min	170 min	35 min
ASTM A312 TP316L	485 min	170 min	35 min
ASTM A312 TP317L	515 min	205 min	35 min
ASTM A312 TP321	515 min	205 min	35 min
ASTM A312 TP347	515 min	205 min	35 min

Application

Raw Material Transportation

Chemical Process Transportation

HVAC System

Water Supply System

Drainage System

Sewage Treatment System

Fresh Water System

Fire Protection System

Automotive Piping

Air Conditioning System

Food Processing

Stainless steel equal tees are widely used in multiple industries. Meanwhile, its diverse sizes and specifications, as well as flexible connection methods, also meet the needs of different pipeline systems.

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