Carbon Steel Weldneck Flanges Manufacturer and Supplier In Kuala Lumpur, Malaysia

Facundo Flanges is a reputable producer and distributor of high quality carbon steel weldneck flanges located in Kuala Lumpur, Malaysia. We provide oil and gas, petrochemical and power generation industries with the best durability and precision engineering. The weldneck flanges are suitable in high pressure applications and the flange is leak-proof and provides long life. The Facundo Flanges is a provider of quality, competitive and in time delivery services on the provision of flange solutions that meet the various needs of clients both in Malaysia and beyond.

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CS Weld Neck Flanges

Weld Neck Carbon Steel Flanges

LTCS Welding Neck Flange

Carbon steel weldneck flanges are primarily composed of iron with carbon content ranging from 0.15% to 0.25%, along with manganese, silicon, and trace amounts of sulfur and phosphorus. Mechanically, they offer high tensile strength (typically 480–620 MPa), excellent yield strength, and good hardness, making them suitable for high-pressure and high-temperature applications. Physically, carbon steel has a density of about 7.85 g/cm³, a melting point of 1425–1540 °C, and good thermal and electrical conductivity. These properties ensure carbon steel weldneck flanges deliver durability, strength, and reliable performance in demanding industrial environments.

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Carbon Steel Weldneck Flanges Specification

Carbon Steel Weld Neck Flanges Standard	ASTM A105, A350 / ASME SA105, SA 350 ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges
Carbon Steel Weld Neck Flange Dimensions	B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
CS Weld Neck Flanges Size	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000)
Carbon Steel Weld Neck Flanges Class/Pressure	150# 300# 600# 900# 1500# 2500# PN6 PN10 PN16 PN25 PN40 PN64
Flange Face Type	Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
SA 105 Carbon Steel Weld Neck Flanges Marking	All Flanges are marked as follows: Grade, Standard, Thickness, Heat No. (Or according to the customer’s request.)
Delivery Time	7-15 working days as usual, It will based on the detailed order quantity.
Payment Terms	Paypal, Western Union, T/T (Telegraphic Transfer or Wire Transfer), L/C or Trade Assurance 30% deposit & balance before shipping
Free Sample	Yes if we have in stock
Carbon Steel Weld Neck Flange testing reports	EN 10204/3.1B NACE 3.1 Certification Mill Test Certification ISO 17025 Standards by a Government of India approved Laboratory Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report and others as required Positive Material Identification is done on all raw material procured at Priminox Overseas
SA 105 Carbon Steel Weld Neck Flanges Origin & Mills	Japanese, Indian, USA, Korean, European, Russian, Ukraine (Strictly No China)
Carbon Steel Weld Neck Flange Application & uses	Petroleum Chemical plant Power sector Gas Industry Hardware tools Metallurgy Machinery Construction Shipbuilding

Largest Carbon Steel Weldneck Flanges Supplier in Kuala Lumpur, Malaysia

Facundo Flanges, a leading supplier in Kuala Lumpur, Malaysia, offers an extensive selection of Carbon Steel Weldneck Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.

Contact us to get a quick quote for your requirement.

We offer These Flanges as per DIN, ISO, JIS or ANSI Standard.

Carbon steel weldneck flanges are commonly applied in piping systems that are high pressure and high temperature. They are perfect in the oil and gas pipes, petrochemical plants, chemical processing units and power generation plants. These flanges are designed with permanent and welded joints that are leak proof and offer high mechanical strength. They are also durable and resistant to stress, thus they can be used in critical markets that require safety and reliability. Carbon steel weldneck flanges are also used where sturdy, durable and high-performance flange solutions are needed in harsh types of industries.

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Types of Carbon Steel Weldneck Flanges

Dimensions of Carbon Steel Weldneck Flanges

Size in In	Size in Millimeter	(OD) Outer Diameter	Flange Thick.	Hub OD	Weld Neck Outer Diameter	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	95	12.7	38	21.3	51	Refer Note	34.9	2	66.7	1.6
3/4	20	115	14.3	48	26.7	56		42.9	2	82.6	1.6
1	25	125	15.9	54	33.4	60		50.8	2	88.9	1.6
1 1/4	32	135	17.5	64	42.2	64		63.5	2	98.4	1.6
1 1/2	40	155	19.1	70	48.3	67		73	2	114.3	1.6
2	50	165	20.7	84	60.3	68		92.1	2	127	1.6
2 1/2	65	190	23.9	100	73	75		104.8	2	149.2	1.6
3	80	210	27	117	88.9	78		127	2	168.3	1.6
3 1/2	90	230	28.6	133	101.6	79		139.7	2	184.2	1.6
4	100	255	30.2	146	114.3	84		157.2	2	200	1.6
5	125	280	33.4	178	141.3	97		185.7	2	235	1.6
6	150	320	35	206	168.3	97		215.9	2	269.9	1.6
8	200	380	39.7	260	219.1	110		269.9	2	330.2	1.6
10	250	445	46.1	321	273	116		323.8	2	387.4	1.6
12	300	520	49.3	375	323.8	129		381	2	450.8	1.6
14	350	585	52.4	425	355.6	141		412.8	2	514.4	1.6
16	400	650	55.6	483	406.4	144		469.9	2	571.5	1.6
18	450	710	58.8	533	457	157		533.4	2	628.6	1.6
20	500	775	62	587	508	160		584.2	2	685.8	1.6
24	600	915	68.3	702	610	167		692.2	2	812.8	1.6

Size of Carbon Steel Weldneck Flanges

Welding Neck Flange Bores (in inch)
NPS	O D	Sch 10	Sch 20	Sch 30	Std. Wall	Sch 40	Sch 60	Extra Strong	Sch 80	Sch 100	Sch 120	Sch 140	Sch 160	Double Extra Strong
1/2”	0.840	0.674			0.622	0.622		0.546	0.546				0.464	0.252
3/4”	1.050	0.884			0.824	0.824		0.742	0.742				0.612	0.434
1”	1.315	1.097			1.049	1.049		0.957	0.957				0.815	0.599
1.1/4”	1.660	1.442			1.380	1.380		1.278	1.278				1.160	0.896
1.1/2”	1.900	1.682			1.610	1.610		1.500	1.500				1.338	1.100
2”	2.375	2.157			2.067	2.067		1.939	1.939				1.687	1.503
2.1/2”	2.875	2.635			2.469	2.469		2.323	2.323				2.125	1.771
3”	3.500	3.260			3.068	3.068		2.900	2.900				2.624	2.300
3-1/2”	4.000	3.760			3.548	3.548		3.364	3.364					2.728
4”	4.500	4.260			4.026	4.026		3.826	3.826		3.624		3.438	3.152
5”	5.563	5.295			5.047	5.047		4.813	4.813		4.563		4.313	4.063
6”	6.625	6.357			6.065	6.065		5.761	5.761		5.501		5.187	4.897
8”	8.625	8.329	8.125	8.071	7.981	7.981	7.813	7.625	7.625	7.437	7.187	7.001	6.813	6.875
10”	10.750	10.420	10.250	10.136	10.020	10.020	9.750	9.750	9.562	9.312	9.062	8.750	8.500	8.750
12”	12.750	12.390	12.250	12.090	12.000	11.938	11.626	11.750	11.374	11.062	10.750	10.500	10.126	10.750
14”	14.000	13.500	13.376	13.250	13.250	13.124	12.812	13.000	12.500	12.124	11.814	11.500	11.188
16”	16.000	15.500	15.376	15.250	15.250	15.000	14.688	15.000	14.312	13.938	13.564	13.124	12.812
18”	18.000	17.500	17.376	17.124	17.250	16.876	16.500	17.000	16.124	15.688	15.250	14.876	14.438
20”	20.000	19.500	19.250	19.000	19.250	18.812	18.376	19.000	17.938	17.438	17.000	16.500	16.062
24”	24.000	23.500	23.250	22.876	23.250	22.624	22.062	23.000	21.562	20.938	20.376	19.876	19.312
30”	30.000	29.376	29.000	28.750	29.250			29.000
36”	36.000	35.376	35.000	34.750	35.250	34.500		35.000
42”	42.000				41.250			41.000

Are Custom Sizes Available for Carbon Steel Weldneck Flanges?

Yes, we offer custom sizes for Carbon Steel Weldneck Flanges to meet specific project needs. Our team at Facundo Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@facundoflanges.com.

Material Testing

We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.