GOST17376 Carbon Steel Seamless Reducing Tee_Products

Commonly used welded pipe fittings, including elbow, tee, reducer (size head) and the cap, the first three are mostly used seamless steel pipe or welded steel pipe through the push system, drawing, extrusion, the latter Steel stamping from. They are achieved by nominal wall thickness (pipe number or wall thickness) to achieve strength equal to that of the pipe. As to the reinforcement of the local stress concentration, it is a matter for the manufacturer to solve. The manufacturer shall design the strength of the butt welded pipe and verify it by the verification test method.

GOST17376 Butt Welded reducing tee Specifications


Straight Tee	Reducing Tee	Cross

Nominal Diameter		Outside Diameter				Center to End
Nominal Diameter		D1		D2		Center to End
DN	NPS	Series A	Series B	Series A	Series B	C	M
15×15×15	1/2×1/2×1/2	21.3	18	21.3	18	25	25
15×15×10	1/2×1/2×3/8	21.3	18	17.3	14	25	25
15×15×8	1/2×1/2×1/4	21.3	18	13.7	10	25	25
20×20×20	3/4×3/4×3/4	26.9	25	26.9	25	29	29
20×20×15	3/4×3/4×1/2	26.9	25	21.3	18	29	29
20×20×10	3/4×3/4×3/8	26.9	25	17.3	14	29	29
25×25×25	1×1×1	33.7	32	33.7	32	38	38
25×25×20	1×1×3/4	33.7	32	26.9	25	38	38
25×25×15	1×1×1/2	33.7	32	21.3	18	38	38
32×32×32	1.1/4×1.1/4×1.1/4	42.4	38	42.4	38	48	48
32×32×25	1.1/4×1.1/4×1	42.4	38	33.7	32	48	48
32×32×20	1.1/4×1.1/4×3/4	42.4	38	26.9	25	48	48
32×32×15	1.1/4×1.1/4×1/2	42.4	38	21.3	18	48	48
40×40×40	1.1/2×1.1/2×1.1/2	48.3	45	48.3	45	57	57
40×40×32	1.1/2×1.1/2×1.1/4	48.3	45	42.4	38	57	57
40×40×25	1.1/2×1.1/2×1	48.3	45	33.7	32	57	57
40×40×20	1.1/2×1.1/2×3/4	48.3	45	26.9	25	57	57
40×40×15	1.1/2×1.1/2×1/2	48.3	45	21.3	18	57	57
50×50×50	2×2×2	60.3	57	60.3	57	64	64
50×50×40	2×2×1.1/2	60.3	57	48.3	45	64	60
50×50×32	2×2×1.1/4	60.3	57	42.4	38	64	57
50×50×25	2×2×1	60.3	57	33.7	32	64	51
50×50×20	2×2×3/4	60.3	57	26.9	25	64	44
65×65×65	2.1/2×2/1/2×2.1/2	73.0	76	73.0	76	76	76
65×65×50	2.1/2×2/1/2×2	73.0	76	60.3	57	76	70
65×65×40	2.1/2×2/1/2×1.1/2	73.0	76	48.3	45	76	67
65×65×32	2.1/2×2/1/2×1.1/4	73.0	76	42.4	38	76	64
65×65×25	2.1/2×2/1/2×1	73.0	76	33.7	32	76	57
80×80×80	3×3×3	88.9	89	88.9	89	86	86
80×80×65	3×3×2.1/2	88.9	89	73.0	76	86	83
80×80×50	3×3×2	88.9	89	60.3	57	86	76
80×80×40	3×3×1.1/2	88.9	89	48.3	45	86	73
80×80×32	3×3×1.1/4	88.9	89	42.4	38	86	70
90×90×90	3.1/2×3.1/2×3.1/2	101.6	-	101.6	-	95	95
90×90×80	3.1/2×3.1/2×3	101.6	-	88.9	89	95	92
90×90×65	3.1/2×3.1/2×2.1/2	101.6	-	73.0	76	95	89
90×90×50	3.1/2×3.1/2×2	101.6	-	60.3	57	95	83
90×90×40	3.1/2×3.1/2×1.1/2	101.6	-	48.3	45	95	79
100×100×100	4×4×4	114.3	108	114.3	108	105	105
100×100×90	4×4×3.1/2	114.3	108	101.6	-	105	102
100×100×80	4×4×3	114.3	108	88.9	89	105	98
100×100×65	4×4×2.1/2	114.3	108	73.0	76	105	95
100×100×50	4×4×2	114.3	108	60.3	57	105	89
100×100×40	4×4×1.1/2	114.3	108	48.3	45	105	86
125×125×125	5×5×5	141.3	133	141.3	133	124	124
125×125×100	5×5×4	141.3	133	114.3	108	124	117
125×125×90	5×5×3.1/2	141.3	-	101.6	-	124	114
125×125×80	5×5×3	141.3	133	88.9	89	124	111
125×125×65	5×5×2.1.2	141.3	133	73.0	76	124	108
125×125×50	5×5×2	141.3	133	60.3	57	124	105
150×150×150	6×6×6	168.3	159	168.3	159	143	143
150×150×125	6×6×5	168.3	159	141.3	133	143	137
150×150×100	6×6×4	168.3	159	114.3	108	143	130
150×150×90	6×6×3.1/2	1, 68.3	-	101.6	-	143	127
150×150×80	6×6×3	168.3	159	88.9	89	143	124
150×150×65	6×6×2.1/2	168.3	159	73.0	76	143	121
200×200×200	8×8×8	219.1	219	219.1	219	178	178
200×200×150	8×8×6	219.1	219	168.3	159	178	168
200×200×125	8×8×5	219.1	219	141.4	133	178	162
200×200×100	8×8×4	219.1	219	114.3	108	178	156
200×200×90	8×8×3.1/2	219.1	-	101.6	-	178	152
250×250×250	10×10×10	273.0	273	273.0	273	216	216
250×250×200	10×10×8	273.0	273	219.1	219	216	203
250×250×150	10×10×6	273.0	273	168.3	159	216	194
250×250×125	10×10×5	273.0	273	141.3	133	216	191
250×250×100	10×10×4	273.0	273	114.3	108	216	184
300×300×300	12×12×12	323.9	325	323.9	325	254	254
300×300×250	12×12×10	323.9	325	273.0	273	254	241
300×300×200	12×12×8	323.9	325	219.1	219	254	229
300×300×150	12×12×6	323.9	325	168.3	159	254	219
300×300×125	12×12×5	323.9	325	141.3	133	254	216
350×350×350	14×14×14	355.6	377	355.6	377	279	279
350×350×300	14×14×12	355.6	377	323.9	325	279	270
350×350×250	14×14×10	355.6	377	273.0	273	279	257
350×350×200	14×14×8	355.6	377	219.1	219	279	248
350×350×150	14×14×6	355.6	377	168.3	159	279	238
400×400×400	16×16×16	406.4	426	406.4	426	305	305
400×400×350	16×16×14	406.4	426	355.6	377	305	305
400×400×300	16×16×12	406.4	426	323.9	325	305	295
400×400×250	16×16×10	406.4	426	273.0	273	305	283
400×400×200	16×16×8	406.4	426	219.1	219	305	273
400×400×150	16×16×6	406.4	426	168.3	159	305	264
450×450×450	18×18×18	457	480	457	480	343	343
450×450×400	18×18×16	457	480	406.4	426	343	330
450×450×350	18×18×14	457	480	355.6	377	343	330
450×450×300	18×18×12	457	480	323.9	325	343	321
450×450×250	18×18×10	457	480	273.0	273	343	308
450×450×200	18×18×8	457	480	219.1	219	343	298
500×500×500	20×20×20	508	530	508	530	381	381
500×500×450	20×20×20	508	530	457	480	381	368
500×500×400	20×20×20	508	530	406.4	426	381	356
500×500×350	20×20×20	508	530	355.6	377	381	356
500×500×300	20×20×20	508	530	323.9	325	381	346
500×500×250	20×20×20	508	530	273.0	273	381	333
500×500×200	20×20×20	508	530	219.1	219	381	324
550×550×550	22×22×22	559	-	559	-	419	419
550×550×500	22×22×20	559	-	508	-	419	406
550×550×450	22×22×18	559	-	457	-	419	394
550×550×400	22×22×16	559	-	406.4	-	419	381
550×550×350	22×22×14	559	-	355.6	-	419	381
550×550×300	22×22×12	559	-	323.9	-	419	371
550×550×250	22×22×10	559	-	273.0	-	419	359
600×600×600	24×24×24	610	630	610	630	432	432
600×600×550	24×24×22	610	-	559	-	432	432
600×600×500	24×24×20	610	630	508	530	432	432
600×600×450	24×24×18	610	630	457	480	432	419
600×600×400	24×24×16	610	630	406.4	426	432	406
600×600×350	24×24×14	610	630	355.6	377	432	406
600×600×300	24×24×12	610	630	323.9	325	432	397
600×600×250	24×24×10	610	630	273.0	273	432	384
650×650×650	26×26×26	660	-	660	-	495	495
650×650×600	26×26×24	660	-	610	-	495	483
650×650×550	26×26×22	660	-	559	-	495	470
650×650×500	26×26×20	660	-	508	-	495	457
650×650×450	26×26×18	660	-	457	-	495	444
650×650×400	26×26×16	660	-	406.4	-	495	432
650×650×350	26×26×14	660	-	355.6	-	495	432
650×650×300	26×26×12	660	-	323.9	-	495	422
700×700×700	28×28×28	711	720	711	720	521	521
700×700×650	28×28×26	711	-	660	-	521	521
700×700×600	28×28×24	711	720	610	630	521	508
700×700×550	28×28×22	711	-	559	-	521	495
700×700×500	28×28×20	711	720	508	529	521	483
700×700×450	28×28×18	711	720	457	478	521	470
700×700×400	28×28×16	711	720	406.4	426	521	457
700×700×350	28×28×14	711	720	355.6	377	521	457
700×700×300	28×28×12	711	720	323.9	325	521	448
750×750×750	30×30×30	762	-	762	-	559	559
750×750×700	30×30×28	762	-	711	-	559	546
750×750×650	30×30×26	762	-	660	-	559	546
750×750×600	30×30×24	762	-	610	-	559	533
750×750×550	30×30×22	762	-	559	-	559	521
750×750×500	30×30×20	762	-	508	-	559	508
750×750×450	30×30×18	762	-	457	-	559	495
750×750×400	30×30×16	762	-	406.4	-	559	483
750×750×350	30×30×14	762	-	355.6	-	559	483
750×750×300	30×30×12	762	-	323.9	-	559	473
750×750×250	30×30×10	762	-	273.0	-	559	460
800×800×800	32×32×32	813	820	813	820	597	597
800×800×750	32×32×30	813	-	762	-	597	584
800×800×700	32×32×28	813	820	711	720	597	572
800×800×650	32×32×26	813	-	660	-	597	572
800×800×600	32×32×24	813	820	610	630	597	559
800×800×550	32×32×22	813	-	559	-	597	546
800×800×500	32×32×20	813	820	508	529	597	533
800×800×450	32×32×18	813	820	457	478	597	521
800×800×400	32×32×16	813	820	406.4	426	597	508
800×800×350	32×32×14	813	820	355.6	377	597	508
850×850×850	34×34×34	864	-	864	-	635	635
850×850×800	34×34×32	864	-	813	-	635	622
850×850×750	34×34×30	864	-	762	-	635	610
850×850×700	34×34×28	864	-	711	-	635	597
850×850×650	34×34×26	864	-	660	-	635	597
850×850×600	34×34×24	864	-	610	-	635	584
850×850×550	34×34×22	864	-	559	-	635	572
850×850×500	34×34×20	864	-	508	-	635	559
850×850×450	34×34×18	864	-	457	-	635	546
850×850×400	34×34×16	864	-	406.4	-	635	533
900×900×900	36×36×36	914	920	914	920	673	673
900×900×850	36×36×34	914	-	864	-	673	660
900×900×800	36×36×32	914	920	813	820	673	648
900×900×750	36×36×30	914	-	762	-	673	635
900×900×700	36×36×28	914	920	711	720	673	622
900×900×650	36×36×26	914	-	660	-	673	622
900×900×600	36×36×24	914	-	610	-	673	610
900×900×550	36×36×22	914	-	559	-	673	597
900×900×500	36×36×20	914	920	508	529	673	584
900×900×450	36×36×18	914	920	457	478	673	572
900×900×400	36×36×16	914	920	406.4	426	673	559

High-quality products

Reducing Tee: branch pipe outside diameter is different with main pipe outside diameters.Carbon steel reducing tee used for the piping system connection. Also known as pipe tee , straight tee or tee fitting,steel tees, a branch in the the main pipe.There are T-shaped and Y-shaped, equal tee and reducing tee, collect three branch pipe to the main pipe. The main role of the tee is to change the direction of flow.

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Cold Extrusion tee production process

Cold Extrusion tee production process
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Hot drawing tee production process
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Butt tee production process

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