Carbon Steel A36 Flanges Manufacturer and Supplier in Cape Town, South Africa

Carbon Steel A36 Flange

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Thabiso Steel, a top-notch manufacturer and supplier based in Cape Town, South Africa, specializes in high-quality **Carbon Steel A36 Flanges** that are designed for strength, reliability, and versatility in both industrial and structural piping systems. These flanges are crafted to meet strict international standards, ensuring they offer excellent dimensional accuracy, mechanical integrity, and resistance to stress and corrosion. Perfect for connecting pipes, valves, and equipment, Thabiso Steel’s A36 Flanges guarantee secure, leak-proof joints across a wide range of applications. Renowned for their weldability, toughness, and long service life, these flanges are a go-to choice in construction, manufacturing, and energy sectors, providing efficient and dependable solutions for critical piping connections.

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ASTM A36 Carbon Steel RTJ Flanges

Carbon Steel A36 Forged Flanges

Carbon Steel A36 Flat Face Flanges

What is Carbon Steel A36 Flanges?

**Carbon Steel A36 Flanges** are primarily made up of carbon, manganese, phosphorus, sulfur, and a few trace alloying elements, striking a perfect balance between strength, ductility, and weldability. They boast a tensile strength of about 400–550 MPa and a yield strength of around 250 MPa, which translates to excellent toughness, ductility, and impact resistance. Thanks to their mechanical properties, **A36 Flanges** are well-suited for high-pressure and structural applications, ensuring reliable performance and long-lasting durability even in demanding environments.

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Carbon Steel A36 Flanges Specification

pecifications	ASTM A36 / ASME SA36
Dimensions	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size	1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Carbon Steel A36 Flanges Chemical Composition

Grade	C	Si	Mn	P	S
A36	0.25 max	0.40 max	0.80 – 1.20	0.040 max	0.050 max

Carbon Steel A36 Flanges Mechanical Properties

Tensile Strength min.		Yield Strength min.		Elongation min.	Reduction of Area, min.	Hardness
MPa	ksi	MPa	ksi	%	%	HBW
485	70	250	36	22	30	137-187

If You Are Looking To Buy High Quality Pipes, Sheet, Fittings and Flanges

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Top Manufacturer and Supplier of Carbon Steel A36 Flange in Cape Town, South Africa

ThabisoSteel is one of the most prominent manufacturers and suppliers of superior quality Carbon Steel A36 Flanges in Cape Town, South Africa. As experts in steel solutions, we supply a complete spectrum of products like Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel. Our product range comprises Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Known for our reliable delivery and first-rate customer service, we are committed to supplying high-quality steel materials that guarantee durability and excellent performance in numerous industrial applications.

Manufacturing Standards / Pressure Rating of Carbon Steel A36 Flanges

ASME/ANSI B 16.5	Blind Flange, High Hub Blind Flange, Slip on Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange
PRESSURE CLASS	150, 300, 400, a36, 900, 1500, 2500
ASME/ANSI B 16.47	Blind Flange [Series A & B],Welding Neck Flange
PRESSURE CLASS	75, 150, 300, 400, a36, 900
ASME/ANSI B 16.36	Slip on Flange, Threaded Flange, Welding Neck Flange,
PRESSURE CLASS	300, 400, a36, 900, 1500, 2500
BS 4504 SEC 3.1	Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange,
PRESSURE CLASS	PN 2.5 TO PN 40
BS 4504[PART 1]	Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS	PN 2.5 TO PN 400
BS 1560 BOSS	Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS	150, 300, 400, a36, 900, 1500, 2500
BS10	Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLE	D, E, F, H
DIN FLANGES	DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS	PN 6 TO PN 100

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Types of Carbon Steel A36 Flanges

Carbon Steel A36 Flange Dimensions Chart

NPS	O.D. of Flange	Flanges Thickness	Diameter of RF	Diameter of Hub at Base	Lengtd Tdru Hub			Bore or Diameter		Dia. of Hub at Bevel	Radius of Fillet	Deptd of Socket
	O.D. of Flange	Flanges Thickness	Diameter of RF	Diameter of Hub at Base	Welding (WN) Neck	Slip-On (SORF) Threaded (NPT) Socket (SWRF)	Lap Joint (Loose)	Slip-on (SORF) Socket (SWRF)	Lap Joint (Loose)	Dia. of Hub at Bevel	Radius of Fillet	Deptd of Socket
	O	Q	R	X	Y	Y	Y	W	B	H	r	Z
1/2	3-1/2	7/16	1-3/8	1-3/16	1-7/8	5/8	5/8	.88	.90	.84	1/8	3/8
3/4	3-7/8	1/2	1-11/16	1-1/2	2-1/16	5/8	5/8	1.09	1.11	1.05	1/8	7/16
1	4-1/4	9/16	2	1-15/16	2-3/16	11/16	11/16	1.36	1.38	1.32	1/8	1/2
1-1/4	4-5/8	5/8	2-1/2	2-5/16	2-1/4	13/16	13/16	1.70	1.72	1.66	3/16	9/16
1-1/2	5	11/16	2-7/8	2-9/16	2-7/16	7/8	7/8	1.95	1.97	1.90	1/4	5/8
2	6	3/4	3-5/8	3-1/16	2-1/2	1	1	2.44	2.46	2.38	5/16	11/16
2-1/2	7	7/8	4-1/8	3-9/16	2-3/4	1-1/8	1-1/8	2.94	2.97	2.88	5/16	3/4
3	7-1/2	15/16	5	4-1/4	2-3/4	1-3/16	1-3/16	3.57	3.60	3.50	3/8	13/16
3-1/2	8-1/2	15/16	5-1/2	4-13/16	2-13/16	1-1/4	1-1/4	4.07	4.10	4.00	3/8	7/8
4	9	15/16	6-3/16	5-5/16	3	1-5/16	1-5/16	4.57	4.60	4.50	7/16	15/16
5	10	15/16	7.5/16	6-7/16	3-1/2	1-7/16	1-7/16	5.66	5.69	5.56	7/16	15/16
6	11	1	8-1/2	7-9/16	3-1/2	1-9/16	1-9/16	6.72	6.75	6.63	1/2	1-1/16
8	13-1/2	1-1/8	10-5/8	9-11/16	4	1-3/4	1-3/4	8.72	8.75	8.63	1/2	1-1/4
10	16	1-3/16	12-3/4	12	4	1-15/16	1-15/16	10.88	10.92	10.75	1/2	1-5/16
12	19	1-1/4	15	14-3/8	4-1/2	2-3/16	2-3/16	12.88	12.92	12.75	1/2	1-9/16
14	21	1-3/8	16-1/4	15-3/4	5	2-1/4	3-1/8	14.14	14.18	14.00	1/2	1-5/8
16	23-1/2	1-7/16	18-1/2	18	5	2-1/2	3-7/16	16.16	16.19	16.00	1/2	1-3/4
18	25	1-9/16	21	19-7/8	5-1/2	2-11/16	3-13/16	18.18	18.a36	18.00	1/2	1-15/16
a36	27-1/2	1-11/16	23	22	5-11/16	2-7/8	4-1/16	a36.a36	a36.25	a36.00	1/2	2-1/8
24	32	1-7/8	27-1/4	26-1/8	6	3-1/4	4-3/8	24.25	24.25	24.00	1/2	2-1/2

Carbon Steel A36 Flanges Weight Chart

Nominal Pipe Sizes (NPS)	Slip On (SORF)	Threaded (NPT)	Socket Weld (SWRF)	Lap Joint (Loose)	Blind (BLRF)	Weld Neck (WRNR)
½	1	1	2	1	2	2
¾	2	2	2	2	2	2
1	2	2	2	2	2	3
1¼	3	3	3	3	3	3
1½	3	3	3	3	4	4
2	5	5	5	5	5	6
2½	8	8	8	8	7	10
3	9	9	9	9	9	11.5
3½	11	12	11	11	13	12
4	13	13	13	13	17	16.5
5	15	15	15	15	a36	21
6	19	19	19	19	27	26
8	30	30	30	30	47	42
10	43	43	43	43	70	54
12	64	64	64	64	123	88
14	90	90	90	105	140	114
16	106	98	98	140	180	140
18	130	130	130	160	2a36	165
a36	165	165	165	195	285	197
22	185	185	185	245	355	225
24	2a36	2a36	2a36	275	430	268

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Uses of Carbon Steel A36 Flanges

You’ll find **Carbon Steel A36 Flanges** commonly used in oil and gas pipelines, water distribution systems, petrochemical plants, and mechanical assemblies. They’re ideal for connecting pipes, valves, pumps, and equipment in industrial and structural projects that require durable, high-strength, and leak-proof solutions. Additionally, they play a crucial role in fabrication, construction frameworks, and power generation systems where toughness, weldability, and long-term reliability are key. Thabiso Steel’s A36 Flanges offer engineers, contractors, and industrial operators safe, efficient, and robust solutions for secure and high-performance piping connections across a variety of applications.