Alloy Steel P11 Pipes

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Thabiso Steel, a top-notch manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **Alloy Steel P11 Pipes** that are perfect for high-temperature, high-pressure, and heavy-duty industrial applications. These pipes are expertly crafted to provide outstanding strength, creep resistance, and durability, ensuring they perform reliably even in the toughest conditions. With a commitment to meeting international standards, Thabiso Steel promises consistent quality and mechanical performance. Catering to sectors like power generation, petrochemical, and oil and gas, the company offers Alloy Steel P11 Pipes that blend operational efficiency, structural integrity, and longevity, making them a go-to choice for critical industrial needs throughout South Africa.

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Alloy Steel P11 Seamless Pipes

Alloy Steel Gr P11 Welded Pipes

Alloy Steel Grade P11 EFW Pipes

What is Alloy Steel P11 Pipes?

**Alloy Steel P11 Pipes** are made from premium alloy steel, featuring controlled amounts of chromium and molybdenum to boost their high-temperature strength, hardness, and creep resistance. These pipes showcase impressive tensile and yield strength, excellent impact resistance, and stability in high temperatures. Their fine-grain microstructure ensures they are weldable, tough, and durable over the long haul, making Alloy Steel P11 Pipes ideal for demanding high-temperature, high-pressure, and industrial uses.

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Alloy Steel P11 Pipes Specification

Type	Seamless / ERW / Welded / Fabricated
Standard	ASTM A335 P11, SA335 P11 (with IBR Test Certificate)
Craft	Cold rolled and Cold drawn
Length	Standard Double & In Cut length also.
Schedules	SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
Size	1/2” NB to 36” NB
Tolerance	Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm
Specialized in	Large Diameter ASTM A335 P11 Pipe
available in Form of	Round, Square, Rectangular, Hydraulic Etc.
Application	Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
End	Plain End, Beveled End, Treaded
Additional Testing	NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.
Thickness	3-12mm

Alloy Steel P11 Pipes Chemical Composition

Alloy Steel P11	C	Cr	Mn	Mo	P	S	Si
Alloy Steel P11	0.05 – 0.15	1.00 – 1.50	0.30 – 0.60	0.44 – 0.65	0.025 max	0.025 max	0.50 – 1.00

Alloy Steel P11 Pipes Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation
415 min	205 min	30 min

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 Alloy Steel P11 Pipes in Cape Town, South Africa

ThabisoSteel is a major manufacturer and a supplier of premium Alloy Steel P11 pipe in Cape Town, the South Africa. With specialization in steel solutions, we offer a variety of products including carbon steel, alloy steel, light steel and galvanized steel. Our wide bearing has pipes, pipes, flanges, pipe fittings, forged fittings, sheets and plates. We are famous for our reliable distribution and extraordinary customer service, and are committed to offering high quality steel materials that ensure durability and better performance in different industrial applications. We are committed to skill, and we are your reliable partners for all steel requirements.

Alloy Steel P11 Pipes Equivalent Grades

ASTM	ASME	Equivalent Material	JIS G 3458	UNS	BS	DIN	ISO	ABS	NK	LRS
A335 P11	SA335 P11	T11	STPA 23	K11597	3604 P1 621	–	–	ABS 11	KSTPA 23	–

ASTM A335 P11 Pipe Size Chart

O.D.(mm) x Thickness(mm)	O.D(mm) x Thickness(mm)	O.D(mm) x Thickness(mm)
38.1 x 3.2	57.0 x 4.9	76.2 x 4.0
38.1 x 4.0	57.0 x 6.3	76.2 x 5.0
38.1 x 6.3	57.0 x 7.9	76.2 x 6.3
42.4 x 3.2	60.3 x 3.2	82.5 x 4.5
42.4 x 4.0	60.3 x 3.6	88.9 x 3.2
44.5 x 3.2	60.3 x 5.0	88.9 x 3.6
44.5 x 6.3	63.5 x 3.2	88.9 x 4.0
48.3 x 3.2	63.5 x 3.6	101.6 x 3.6
48.3 x 3.6	63.5 x 4.0	101.6 x 4.5
50.8 x 4.5	63.5 x 6.3	101.6 x 6.3
51.0 x 3.2	63.5 x 7.9	114.3 x 3.6
51.0 x 3.6	70.0 x 3.2	114.3 x 5.0
51.0 x 6.3	70.0 x 3.6	139.7 x 4.0
57.0 x 3.2	70.0 x 6.3	139.7 x 5.0
57.0 x 3.6	76.2 x 3.6	139.7 x 6.3

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Types of Alloy Steel P11 Pipes

Gr P11 Alloy Steel Hydraulic Pipes

Alloy Steel P11 Hexagonal Pipe

Alloy Steel P11 Rectangular Pipe

Alloy Steel Grade P11 Round Pipe

Gr. P11 Alloy Steel Square Pipe

P11 Alloy Steel Hollow Pipes

Alloy Steel P11 Pipes Weight Chart

ASTM A335 P11 Pipe Size NPS	Pipe O.D.	Wall Thickness	Pipe I.D.	Weight per Foot
1/2	0.84	0.109	0.622	0.85
		0.147	0.546	1.09
		0.188	0.464	1.31
		0.294	0.252	1.72
3/4	1.05	0.113	0.824	1.13
		0.154	0.742	1.48
		0.219	0.612	1.95
		0.308	0.434	2.44
1	1.315	0.133	1.049	1.68
		0.179	0.957	2.17
		0.250	0.815	2.85
		0.358	0.599	3.66
1 1/4	1.66	0.140	1.380	2.27
		0.191	1.278	3.00
		0.250	1.160	3.77
		0.382	0.896	5.22
1 1/2	1.90	0.145	1.610	2.72
		0.200	1.500	3.63
		0.281	1.338	4.86
		0.400	1.100	6.41
2	2.375	0.109	2.157	2.64
		0.154	2.067	3.66
		0.218	1.939	5.03
		0.250	1.875	5.68
		0.281	1.813	6.29
		0.344	1.687	7.47
		0.436	1.503	9.04
2 1/2	2.875	0.120	2.635	3.53
		0.203	2.469	5.80
		0.216	2.443	6.14
		0.250	2.375	7.02
		0.276	2.323	7.67
		0.375	2.125	10.02
		0.552	1.771	13.71

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Uses of Alloy Steel P11 Pipes

**Alloy Steel P11 Pipes** are extensively utilized in industries that require robust, durable, and heat-resistant tubular components. They’re commonly found in power plant boilers, steam pipelines, petrochemical facilities, and oil and gas refineries. Moreover, they are essential in high-pressure piping systems, industrial machinery, and structural frameworks where toughness, corrosion resistance, and thermal stability are crucial. The combination of mechanical strength, high-temperature performance, and long-lasting reliability guarantees safe and efficient operation, making Alloy Steel P11 Pipes perfect for energy, industrial, and heavy engineering applications.