Our Products

Weld Neck Flanges (Code 111) – BS 4504

Manufactured with finest quality of metals, our wide range of drilling flanges is high in demand across the globe. Our superior quality drilling flanges are independent screwed wellhead which provides metal-to-metal seal. These flanges drilling are extensively used in various industries like ship building, petrochemical, steel plant etc. We are known for offering our product range at reasonable prices and delivering consignment within given time frame.

DN	PN	A	B	C	D	E	F	G	H
DN	PN	mm	mm	mm	mm	mm	mm	mm	mm
10	2.5, 6	75		12	28		26		1.8
	10	90		14	35		28		1.8
	16	90	17.2	14	35	6	28	3	1.8
	25	90		16	35		28		1.8
	40	90		16	35		28		1.8
15	2.5, 6	80		12	30		30		2
	10	95		14	35		32		2
	16	95	21.3	14	35	6	32	3	2
	25	95		16	38		32		2
	40	95		16	38		32		2
20	2.5, 6	90		14	32		38		2.3
	10	105		16	38		39		2.3
	16	105	26.9	16	38	6	39	4	2.3
	25	105		18	40		40		2.3
	40	105		18	40		40		2.3
25	2.5, 6	100		14	35		42		2.6
	10	115		16	38		46		2.6
	16	115	33.7	16	38	6	46		2.6
	25	115		18	40		46	4	2.6
	40	115		18	40		46		2.6
32	2.5, 6	120		14	35		55		2.6
	10	140		16	40		56		2.6
	16	140	42.4	16	40	6	56	5	2.6
	25	140		18	42		56		2.6
	40	140		18	42		56		2.6
40	2.5, 6	130		14	38		62		2.6
	10	150		16	42		64		2.6
	16	150	48.3	16	42	7	64	5	2.6
	25	150		18	45		64		2.6
	40	150		18	45		64		2.6
50	2.5, 6	140		14	38		74		2.9
	10	165		18	45		74		2.9
	16	165	60.3	18	45	8	74	5	2.9
	25	165		20	48		74		2.9
	40	165		20	48		74		2.9
65	2.5, 6	160		14	38	9	88		2.9
	10	185		18	45		92		2.9
	16	185	76.1	18	45		92	6	2.9
	25	185		22	52	10	92		2.9
	40	185		22	52		92		2.9
80	2.5, 6	190		16	42		102		3.2
	10	200		20	50	10	110		3.2
	16	200	88.9	20	50		110	6	3.2
	25	200		24	58	12	110		3.2
	40	200		24	58		110		3.2
100	2.5, 6	210		16	45	10	130		3.6
	10	220		20	52		130	6	3.6
	16	220	114.3	20	52		130		3.6
	25	235		24	65	12	134		3.6
	40	235		24	65		134		3.6
125	2.5, 6	240		18	48	10	155		4
	10	250		22	55		158		4
	16	250	139.7	22	55		158	6	4
	25	270		26	68	12	162		4
	40	270		26	68		162		4
150	2.5, 6	265		18	48		184		4.5
	10	285		22	55		184	8	4.5
	16	285	168.3	22	55	12	184		4.5
	25	300		28	75		190		4.5
	40	300		28	75		190		4.5
200	2.5, 6	320		20	55	15	236		5.6
	10	340		24	62		234	8	5.6
	16	340	219.1	24	62	16	234		5.6
	25	360		30	80		244		6.3
	40	375		34	88		244		6.3
250	2.5, 6	375		22	60	15	290		6.3
	10	395		26	68		288	10	6.3
	16	405	273	26	70	16	288		6.3
	25	425		32	88		296		7.1
	40	450		38	105	18	306		7.1
300	2.5, 6	440		22	62	15	342		7.1
	10	445		26	68		342	10	7.1
	16	460	323.9	28	78	16	342		7.1
	25	485		34	92		350		8
	40	515		42	115	18	362		8
350	2.5, 6	490		22	62	15	385		7.1
	10	505		26	68		390	10	7.1
	16	520	355.6	30	82	16	390		8
	25	555		38	100		398		8
	40	580		46	125	20	408		8.8
400	2.5, 6	540		22	65	15	438		7.1
	10	565		26	72		440		7.1
	16	580	406.4	32	85	16	444	10	8
	25	620		40	110		452		8.8
	40	660		50	135	20	462		11
450	2.5, 6	595		24	65	15	492		7.1
	10	615		28	72		488		7.1
	16	640	457	34	87	16	490	12	8
	25	670		42	110		500		8.8
	40	685		50	135	20	500		12.5
500	2.5, 6	645		24	68	15	538		7.1
	10	670		28	75		540		7.1
	16	715	508	34	90	16	546	12	8
	25	730		44	125		558		10
	40	755		52	140	20	562		14.2
600	2.5, 6	755		24	70	16	640		7.1
	10	780		28	80		640		7.1
	16	840	610	36	95	18	650	12	8.8
	25	845		46	125		660		11
	40	890		60	150	20	666		16
700	2.5, 6	860		24	70		740		-1
	10	860		24	70	16	740		7.1
	16	895	711	30	80		746	12	8
	25	910		36	100	18	750		8.8
	40	960		46	125	20	760		12.5
800	2.5, 6	975		26	70		842		-1
	10	975		24	70	16	842		7.1
	16	1015	813	32	90	18	848	12	8
	25	1025		38	105	20	848		10
	40	1085		50	135	22	864		14.2
900	2.5, 6	1075		26	70		942		-1
	10	1075		26	70	16	942		7.1
	16	1115	914	34	95		948	12	10
	25	1125		40	110	20	948		10
	40	1185		54	145	24	968		16
1000	2.5, 6	1175		26	70	16	1045		-1
	10	1175		26	70		1045		7.1
	16	1230	1016	34	95	20	1050	12	10
	25	1255		42	120	22	1056		10
	40	1320		58	155	24	1070		17.5
1200	2.5	1375		26	70	16	1245	16	-1
	6	1405		28	90	20	1248		8
	10	1455	1220	38	115	25	1256	12	11
	16	1485		48	130	30	1260		12.5
1400	2.5	1575		26	70	16	1445	16	-1
	6	1630		32	90	20	1452		8
	10	1675	1420	42	120	25	1460	12	12
	16	1685		52	145	30	1465		14.2
1600	2.5	1790		26	80		1645	16	-1
	6	1830	1620	34	90	20	1655		9
	10	1915		46	130	25	1666	12	14
	16	1930		58	160	35	1668		16
1800	2.5	1990		26	80		1845	16	-1
	6	2045	1820	36	100	20	1855		10
	10	2115		50	140	30	1866	15	15
	16	2130		62	170	35	1870		17.5
2000	2.5	2190		26	80	22	2045	16	-1
	6	2265	2020	38	110	25	2058		11
	10	2325		54	150	30	2070	15	16
	16	2345		66	190	40	2072		20

Stainless steel Flanges ( product range)
WN – Welding Neck	EN-TYPE 11
BL – Blind	EN-TYPE 05
SO – Slip On	EN-TYPE 01/12
LJ – Lap Joint	EN-TYPE 02/04
SW – Socket Weld	EN-TYPE 14
THR – Threaded	EN-TYPE 13
LWN – Long Welding Neck / Integral	EN-TYPE 21
Welding Collars	EN-TYPE 32/34
ORIFICE Flanges, Swivel Flanges, Spades, Spacer Rings
Spectable Blinds, API 6A, JIS B2220, VSM, NFE, BS10/BS4504, GOST

GRADES:
Austenitic:
F304/304L	1.4301/1.4307	UNS S30403/S30400
F304H	1.4948	UNS S30409
F321/F321H	1.4541/1.4878	UNS S32100/S32109
F316/F316L	1.4401/1.4404	UNS S31603/S31600
F316L (MO+)	1.4435	UNS S31635
F316TI	1.4571	UNS S31635
F904L	1.4539	UNS N08904
F44 (254SMO®)	1.4547	UNS S31254
F310/F310S	1.4841/1.4845	UNS S31000/S31008
F347 (H)	1.4550	UNS S34700/S34709
F317L	1.4438	UNS S31703
F316H	1.4919	UNS S31609

Duplex & Super Duplex:
F51/F60	1.4462	UNS S31803
F53	1.4410	UNS S32750
F55	1.4501	UNS S32750

Nickel Alloys:
Alloy 800/800H	1.4876	UNS N08800/N08810
Monel 400	2.4360	UNS N04400
Alloy 600	2.4816	UNS N06600
Alloy 625	2.4856	UNS N06625
Alloy 825	2.4858	UNS N08825
Alloy C276	2.4819	UNS N10276
Alloy 59	2.4605	UNS N06059
Alloy C4	2.4610	UNS N06455
Alloy 22	2.4602	UNS N06022
Other Alloys available on request

Sizes according to ASME/ASTM B16.5 – B16.36 – B16.48
Class 150(lb) up to 24″
Class 300(lb) up to 20″
Class 600(lb) up to 20″
Class 900(lb) up to 16″
Class 1500(lb) up to 10″
Class 2500(lb) up to 8″

Sizes according to DIN – EN1092-1 – EN1759-1 – NFE – BS10/BS4504 & ISO7005-1
PN2.5/PN06/PN10 up to DN800
PN16/PN25/PN40 up to DN600
PN63/PN100 up to DN500
PN160/PN250 up to DN300
PN320/PN400 up to DN200
API 6A Flanges
2000 PSI up to 20000 PSI
JIS B2220
5K up to 63K

SPECIFICATIONS & STANDARDS:
ASTM/ASME SA/A182 – ASME SA/A240 – ASME SB/B564
ASTM/ASME B16.5/B16.48/B16.36
EN 10222-1/EN10222- 5
EN 1092-1/EN 1759-1
DIN17440
BS 10/BS 4504 (British Standard)
JIS B2220 – NFE – GOST – VSM – API 6A
ISO 7005-1 – NORSOK L005

ABOUT GREAT STEELL

QUALITY POLICY

Metals Weight Calculator

Our Products

Weld Neck Flanges (Code 111) – BS 4504

Contact Us

GREAT STEEL & METALS

Industries We Serve

Our Certificate