GOST 12821-80 PN1.0 Welding Neck Flanges GOST 12821-80 1-20-10 Ст.3

EO flange has provided the highest quality custom forgings flanges for a wide range of industries since 2006. We can provide Flange GOST 12821-80 1-15-10, which pressure 1.0 MPa, weight 0.58 KG. GOST 12820-80 plate flange Material Carbon Steel: CT20, Q235, ASTM A105, A181, A350 LF1, A350LF2,...

Product Details

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EO flange has provided the highest quality custom forgings flanges for a wide range of industries since 2006. We can provide Flange GOST 12821-80 1-15-10, which pressure 1.0 MPa, weight 0.58 KG.

GOST 12820-80 plate flange

Material Carbon Steel: CT20, Q235, ASTM A105, A181, A350 LF1, A350LF2, A350LF3, A36, 20#, 16Mn, 20Mn etc

Material Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 etc.

Flanges Anti Rust: Anti Rust Oil, Black Paint, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized etc

Pressure PN =1,0 МPа (10 kgf/cm²)
Description	D, мм.	D1, мм.	d, мм.	Dm, мм	Dn, мм	d1, мм.	b, мм.	h4, мм.	Ot., Pcs.	Weight, kg.
Flange GOST 12821-80 1-15-10 ст.3 (20)	95	65	14	30	19	12	10	33	4	0,58
Flange GOST 12821-80 1-20-10 ст.3 (20)	105	75		28	26	18	12	36		0,87
Flange GOST 12821-80 1-25-10 ст.3 (20)	115	85		45	33	25	12	38		1,05
Flange GOST 12821-80 1-32-10 ст.3 (20)	135	100	18	55	39	31	13	40		1,54
Flange GOST 12821-80 1-40-10 ст.3 (20)	145	110		62	46	38		42		1,83
Flange GOST 12821-80 1-50-10 ст.3 (20)	160	125		76	58	49		42		2,26
Flange GOST12821-80 1-65-10 ст.3 (20)	180	145		94	77	66	15	45		3,17
Flange GOST 12821-80 1-80-10 ст.3 (20)	195	160		105	90	78	15	47		3,67
Flange GOST12821-80 1-100-10 ст.3 (20)	215	180		128	110	96	17	48	8	4,7
Flange GOST 12821-80 1-125-10 ст.3 (20)	245	210		156	135	121	19	57		6,71
Flange GOST 12821-80 1-150-10 ст.3 (20)	280	240	22	180	161	146		57		8,17
Flange GOST 12821-80 1-200-10 ст.3 (20)	335	295		240	222	202		58		11,35
Flange GOST 12821-80 1-250-10 ст.3 (20)	390	350		290	278	254	21	60	12	14,64
Flange GOST12821-80 1-300-10 ст.3 (20)	440	400		345	330	303	22		12	18,66
Flange GOST12821-80 1-350-10 ст.3 (20)	500	460		400	382	351			16	24
Flange GOST12821-80 1-400-10 ст.3 (20)	565	515	26	445	432	398			16	30
Flange GOST12821-80 1-500-10 ст.3 (20)	670	620	26	550	535	501	24	65	20	39,2
Flange GOST12821-80 1-600-10 ст.3 (20)	780	725	30	650	636	602	24	65	20	48,8
Flange GOST12821-80 1-800-10 ст.3 (20)	1010	950	33	850	826	792	27	75	24	87,24
Flange GOST12821-80 1-1000-10 ст.3 (20)	1220	1160	33	1050	1028	992	29	80	28	119,19
Flange GOST12821-80 1-1200-10 ст.3 (20)	1455	1380	39	1256	1228	1192	33	90	32	179,91

Conditional pass Dy	d1	b	h4	Dm	Dn	Weight, kg
Conditional pass Dy	d1	b	h4	Dm	Dn	With a connecting protrusion	with a protrusion	with a hollow	with a spike	with a groove
10	8	10	33	25	15	0,50	0,50	0,48	0,50	0,49
15	12	10	33	30	19	0,58	0,58	0,54	0,57	56
20	18	12	36	38	26	0,87	0,87	0,81	0,87	0,83
25	25	12	38	45	33	1,05	1,05	0,98	1,03	1,02
32	31	13	40	55	39	1,54	1,53	1,45	1,50	1,49
40	38		42	62	46	1,83	1,78	1,71	1,74	1,78
50	49		42	76	58	2,26	2,23	2,15	2,15	2,21
65	66	15	45	94	77	3,17	3,11	2,92	3,06	3,14
80	78	15	47	105	90	3,67	3,60	3,46	3,54	3,65
100	96	17	48	128	110	4,70	4,70	4,49	4,50	4,54
125	121	19	57	156	135	6,71	6,58	6,27	6,12	6,23
150	146			180	161	8,17	8,20	7,77	8,80	8,90
-175	177			210	196	9,71	9,57	9,09	9,36	9,49
200	202		58	240	222	11,35	11,00	10,47	10,28	10,32
-225	226		60	268	248	13,24	13,04	12,40	12,64	12,83
250	254	21		290	278	14,64	14,39	13,86	13,64	13,83
300	303	22		345	330	18,66	19,30	17,70	18,52	18,90
350	351			400	382	24,00	21,70	22,56	22,70	23,00
400	398			445	432	30,00	30,35	27,65	28,00	28,50
-450	450		65	500	484	33,33	34,69	31,30	31,21	31,83
500	501	24		550	535	39,20	40,00	37,00	36,91	37,60
600	602	24		650	636	48,80	50,00	46,60	45,52	48,70
-700	692	25		744	726	65,26	64,70	60,50	59,86	62,28
800	792	27	75	850	826	87,24	86,10	80,40	81,25	84,28
-900	892	29	80	950	926	103,02	-	-	-	-
1000	992	29	80	1050	1028	119,19
1200	1192	33	90	1256	1228	179,91

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