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2026-09-23

What Is an I Beam? Types, Sizes, Weight and Applications

An I beam is a structural steel section with a cross-section that resembles the capital letter “I.” It consists of two horizontal flanges connected by a vertical web. This shape allows the beam to carry bending and shear forces efficiently while keeping its structural weight relatively low.

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2026-09-23

H Beam Size Chart in mm: HEA, HEB and HEM Dimensions

If you are looking for an H beam size chart in mm, the most important point is that “H beam” is not one single standardized size series. European H sections are commonly classified as HEA, HEB and HEM, with different web and flange thicknesses even when the nominal size is similar.

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2026-09-18

Ductile Iron Pipe vs Seamless Black Steel Pipe

Ductile iron pipes are primarily used for buried water supply and sewage pipelines, whereas seamless black steel pipes are commonly utilized in industrial, high-temperature, and prefabricated piping systems. Ductile iron pipes are made of ductile iron and feature standardized mechanical joints; in contrast, seamless black steel pipes are manufactured from carbon steel and typically connected via welding, flanges, or other methods.

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2026-09-18

Ductile Iron Pipe Inside Diameter Chart

The inside diameter of ductile iron pipe determines the available flow area and is an important dimension for hydraulic calculations, flow velocity, pressure loss, and connection design. However, the actual inside diameter is not always identical to the nominal pipe size.

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2026-09-17

Schedule 40 Seamless Black Steel Pipe

Schedule 40 seamless black steel pipe is a type of ungalvanized seamless carbon steel pipe manufactured with a standardized Schedule 40 wall thickness. It combines the seamless construction of the pipe with the dimensional requirements of Schedule 40 and the ungalvanized surface commonly associated with black steel pipe.

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2026-09-11

Schedule 20 Pipe Materials: Carbon Steel, Stainless Steel and Alloy Steel

Schedule 20 pipe is a relatively light-wall pipe classification used in selected low-pressure and moderate-service piping applications. The term Schedule 20 describes pipe wall thickness, not the chemical composition or grade of the steel. Depending on the application, Schedule 20 pipe can be supplied in carbon steel, stainless steel, or alloy steel materials.

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2026-09-11

Schedule 20 Seamless Steel Pipe

Schedule 20 seamless steel pipe is a carbon steel pipe manufactured without a longitudinal weld and specified with a Schedule 20 wall thickness. It is commonly selected for piping systems where a relatively light wall is suitable for the required service conditions.

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2026-09-10

Schedule 20 vs STD Pipe: Key Differences

Schedule 20 and STD (Standard Weight) are both used to describe steel pipe wall thickness, but they are not interchangeable terms for every pipe size.

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2026-09-04

Does Black Steel Pipe Rust?

Black steel pipe is normally made from carbon steel without a galvanized zinc coating. Its dark surface often comes from mill scale formed during manufacturing. This surface condition does not make the pipe rust-proof.When moisture and oxygen reach exposed steel, corrosion can occur. Salt, chemicals, condensation, and prolonged water exposure can make the process faster.Black steel pipe remains a practical choice for many gas, fire protection, industrial, and structural applications. The key is to match the pipe and its corrosion protection to the service environment.

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2026-09-04

Pipe Schedule Dimensions Chart

Pipe schedule dimensions are used to identify the wall thickness of a pipe for a specific nominal pipe size (NPS). Common schedules include SCH 5, SCH 10, SCH 20, SCH 40, SCH 80, SCH 120, SCH 160, and XXS.However, pipe schedule does not directly indicate the pipe's outside diameter (OD). The OD is determined by the NPS, while the wall thickness is determined by the applicable pipe schedule.Understanding the relationship between NPS, outside diameter, wall thickness, and pipe schedule is essential when selecting pipes for industrial, mechanical, structural, and pressure applications. This guide provides a practical pipe schedule dimensions chart and explains how to read pipe dimensions correctly.

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2026-08-28

Ductile Iron Pipe vs Steel Pipe

The primary difference between ductile iron pipe (DI pipe) and steel pipe goes beyond mere material composition; there are significant distinctions in strength, toughness, corrosion resistance, connection methods, pressure-bearing capacity, and application scenarios. Ductile iron pipe is best suited for underground municipal water and sewage systems, whereas steel pipe is preferred for industrial applications, high-pressure or high-temperature lines, and large water mains exceeding 600 mm in diameter.

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2026-08-28

Schedule 20 Steel Pipe Pressure Rating Chart

There is no single PSI value for all Schedule 20 steel pipes. The pressure capacity depends on the pipe size, outside diameter, wall thickness, steel grade, operating temperature, corrosion allowance, and applicable design code.For carbon and alloy steel pipe, Schedule 20 is a dimensional designation rather than a standalone pressure class. Under ASME B36.10M, Schedule 20 dimensions vary with nominal pipe size. For example, NPS 8 Schedule 20 has a 0.250-inch wall, while NPS 14 has a 0.312-inch wall.