Carbon Steel A105 Flanges Manufacturer and Supplier in Cape Town, South Africa

Carbon Steel A105 Flanges

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Thabiso Steel, a reputable manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **Carbon Steel A105 Flanges** designed for durability, strength, and reliable performance in high-pressure and high-temperature settings. These flanges are crafted to meet international standards, ensuring precision, consistency, and long-lasting operational efficiency. Thabiso Steel caters to various industries, including oil and gas, petrochemical, power generation, and construction, delivering products that blend structural integrity with corrosion resistance. With a strong commitment to quality and customer satisfaction, Thabiso Steel has positioned itself as a top supplier of carbon steel flanges, offering dependable solutions for essential piping and industrial systems.

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ASTM A105 Carbon Steel RTJ Flanges

Carbon Steel A105 Forged Flanges

Carbon Steel A105 Flat Face Flanges

What is Carbon Steel A105 Flanges?

**Carbon Steel A105 Flanges** are mainly made up of carbon, manganese, phosphorus, sulfur, and silicon, along with controlled alloying elements that boost their mechanical performance. They showcase impressive tensile and yield strength, exceptional hardness, and high impact resistance. These flanges also provide good ductility, weldability, and toughness, ensuring they perform reliably under high-pressure and high-temperature conditions. These mechanical attributes make A105 flanges perfect for piping systems, pressure vessels, and structural applications that demand durability, strength, and consistent performance in challenging industrial environments.

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Carbon Steel A105 Flanges Specification

Specs	ASTM A105/ ASME SA105
Pressure Classes	Cl 150, Class 300, Cl. 400, 600, Class 900, Cl 1500 and 2500
Standards	ASME \| BS \| DIN \| ANSI \| GOST \| EN Flange
Size Ranges	From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB)
Flange Face Type	FF, RF, LMF, SMF, RTJ, LJF.
JIS Standards	5 K, 10K, 16K, 20 K, 30K, 40K, 63 K
UNI/ DIN / EN Standard	6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar

Carbon Steel A105 Flanges Chemical Composition

Elements	Composition, %
Carbon [C]	≤0.35
Manganese [Mn]	0.60-1.05
Phosphorus [P]	≤0.35
Sulfur [S]	≤0.40
Silicon [Si]	0.10-0.35
Copper [Cu]	≤0.40
Nickel [Ni]	≤0.40
Chromium [Cr]	≤0.30
Molybdenum [Mo]	≤0.12
Vanadium [V]	≤0.08

Carbon Steel A105 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 A105 Flanges in Cape Town, South Africa

ThabisoSteel is one of the most prominent manufacturers and suppliers of superior quality Carbon Steel A105 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.

ANSI A105 Flanges Pressure Rating

ASTM A105 Flange Weights by Pressure Class and Size
Pipe Size	Class 150			Class 300			Class 600			Class 900			Class 1500			Class 2500
Pipe Size	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD
1/2″	2	1	1	2	1	1	2	2	2	1500 Class Weight			5	4	4	7	7	7
3/4″	2	2	2	3	3	3	4	3	3	1500 Class Weight			6	5	6	8	8	8
1″	3	2	2	4	3	3	4	4	4	1500 Class Weight			9	8	8	12	11	11
1 1/2″	4	3	3	7	6	6	8	7	8	1500 Class Weight			13	12	13	25	22	23
2″	6	5	5	9	7	8	12	9	10	1500 Class Weight			25	25	25	42	37	39
2 1/2″	8	7	7	12	10	12	18	13	15	1500 Class Weight			36	36	35	52	55	56
3″	10	8	9	15	13	16	23	16	20	31	26	29	48	48	48	94	83	86
4″	15	13	17	25	22	27	42	37	41	53	53	54	73	73	73	145	125	130
5″	19	15	20	32	28	35	68	63	68	86	83	87	130	130	140	245	210	225
6″	24	19	26	42	39	50	81	80	86	110	110	115	165	165	160	380	325	345
8″	39	30	45	67	58	81	120	115	140	175	170	200	275	260	300	580	485	530
10″	52	43	70	91	81	124	190	170	230	260	245	290	455	435	510	1075	930	1025
12″	80	64	110	140	115	185	225	200	295	325	325	415	690	580	690	1525	1100	1300
14″	110	90	140	180	165	250	280	230	355	400	400	520	940	NA	975	NA	NA	NA
16″	140	98	180	250	190	295	390	330	495	495	425	600	1250	NA	1300	NA	NA	NA
18″	150	130	220	320	250	395	475	400	630	680	600	850	1625	NA	1750	NA	NA	NA
20″	180	165	285	400	315	505	590	510	810	830	730	1075	2050	NA	2225	NA	NA	NA
22″	225	185	355	465	370	640	720	590	1000	NA	NA	NA	NA	NA	NA	NA	NA	NA
24″	260	220	430	580	475	790	830	730	1250	1500	1400	2025	3325	NA	3625	NA	NA	NA

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Types of Carbon Steel A105 Flanges

ASTM A105 Flange Weight Chart

Size in inches	Outer Dia.	Size in millimeter	RF Height	Flange Thick.	RF Diam.	PCD	Bolt Size UNC	No of Bolts	Machine Bolt Lengths	Hole Size	RF Stud Length	ISO Stud Size	Weight in kg
	A		D	B	C	E
1/2	90	15	2	9.6	34.9	60.3	1/2	4	50	5/8	55	M14	0.9
3/4	100	20	2	11.2	42.9	69.9	1/2	4	50	5/8	65	M14	0.9
1	110	25	2	12.7	50.8	79.4	1/2	4	55	5/8	65	M14	0.9
1 1/4	115	32	2	14.3	63.5	88.9	1/2	4	55	5/8	70	M14	1.4
1 1/2	125	40	2	15.9	73	98.4	1/2	4	65	5/8	70	M14	1.8
2	150	50	2	17.5	92.1	120.7	5/8	4	70	3/4	85	M16	2.3
2 1/2	180	65	2	20.7	104.8	139.7	5/8	4	75	3/4	90	M16	3.2
3	190	80	2	22.3	127	152.4	5/8	4	75	3/4	90	M16	4.1
3 1/2	215	90	2	22.3	139.7	177.8	5/8	8	75	3/4	90	M16	5.9
4	230	100	2	22.3	157.2	190.5	5/8	8	75	3/4	90	M16	7.7
5	255	125	2	22.3	185.7	215.9	3/4	8	85	7/8	95	M20	9.1
6	280	150	2	23.9	215.9	241.3	3/4	8	85	7/8	100	M20	11.8
8	345	200	2	27	269.9	298.5	3/4	8	90	7/8	110	M20	20.5
10	405	250	2	28.6	323.8	362	7/8	12	100	1	115	M24	32
12	485	300	2	30.2	381	431.8	7/8	12	100	1	120	M24	50
14	535	350	2	33.4	412.8	476.3	1	12	115	1 1/8	135	M27	64
16	595	400	2	35	469.9	539.8	1	16	115	1 1/8	135	M27	82
18	635	450	2	38.1	533.4	577.9	1 1/8	16	125	1 1/4	145	M30	100
20	700	500	2	41.3	584.2	635	1 1/8	20	140	1 1/4	160	M30	130
24	815	600	2	46.1	692.2	749.3	1 1/4	20	150	1 3/8	170	M33	196

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Uses of Carbon Steel A105 Flanges

**Carbon Steel A105 Flanges** are extensively used in industries that require secure and robust piping connections. They’re commonly found in oil and gas pipelines, refineries, chemical plants, power generation facilities, and steam distribution systems. Additionally, they play a vital role in boiler assemblies, heat exchangers, and petrochemical installations where safety and operational reliability are paramount. Their blend of mechanical strength, corrosion resistance, and precise dimensions guarantees long-term performance, making them an excellent choice for connecting pipes, valves, and equipment in high-pressure applications.