Company News

2026-08-14

SCH 40 Black Steel Pipe

SCH 40 Black Steel Pipe is a common type of carbon steel pipe widely used in industrial piping, construction, machinery, and fluid transport systems. These pipes are typically manufactured to standards such as ASTM A53; the "SCH 40" (Schedule 40) designation refers to the standard wall thickness series, with the actual wall thickness determined by the nominal pipe size (NPS), while "Black Steel Pipe" refers to carbon steel pipe that has not been galvanized and features a black or dark gray finish. SCH 40 Black Steel Pipe offers a favorable balance of strength, durability, and cost-effectiveness, making it suitable for applications involving gas, water, HVAC, steam, fire protection, and general industrial piping.

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2026-08-14

Schedule 40 vs Schedule 160 Pipe: Dimensions, Weight & Pressure

Schedule 40 and Schedule 160 are two standardized pipe wall thickness ratings commonly used in piping systems. For a given nominal pipe size, these two types of pipe typically share the same outside diameter. The primary differences are that Schedule 160 pipe has a thicker wall, a smaller inside diameter, and greater weight.

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2026-08-11

Schedule 40 Aluminum Pipe

Schedule 40 aluminum pipe is a widely used aluminum piping product defined by the NPS pipe sizing system and Schedule 40 wall thickness. It combines the low weight and corrosion resistance of aluminum with a standardized pipe dimension system.

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2026-08-06

ASTM A513 Rectangular Tube Sizes

ASTM A513 rectangular tubes are available in a wide range of sizes to meet different mechanical and fabrication requirements. Although ASTM A513 does not specify a fixed dimensional chart, it covers electric resistance welded (ERW) mechanical tubing manufactured in various outside dimensions and wall thicknesses. Standard rectangular tube sizes typically range from 1 × 1.5 in. to 4 × 6 in. for stock products, while custom sizes can extend from 10 × 15 mm to 800 × 1100 mm, depending on the manufacturing process and mill capabilities. Wall thicknesses generally range from 0.020 in. (0.5 mm) to 1.000 in. (25 mm).For dimensions across multiple international standards and materials, see our Standard Rectangular Tube Size Table.

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2026-08-06

JIS G3466 Rectangular Tubes Sizes

JIS G3466 rectangular tube sizes cover outside dimensions from 10 × 15 mm to 800 × 1100 mm, with wall thicknesses ranging from 0.5 mm to 60 mm. Designed for general structural applications, JIS G3466 specifies carbon steel rectangular hollow sections in STKR400 and STKR490 grades, along with requirements for chemical composition, mechanical properties, dimensional tolerances, manufacturing methods, and quality inspection. These tubes are widely used in steel structures, commercial buildings, bridges, industrial facilities, and machinery manufacturing where reliable strength and dimensional accuracy are required.

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2026-08-05

EN10219 Rectangular Tube (RHS) Sizes

EN 10219 rectangular tubes are cold-formed welded structural hollow sections widely used in construction, infrastructure, machinery, and steel fabrication. The EN 10219 standard defines the standard dimensions, dimensional tolerances, and sectional properties for rectangular hollow sections (RHS) with outside dimensions up to 500 × 300 mm and wall thicknesses up to 40 mm.

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2026-07-31

ASTM A500 Rectangular Tube Sizes

ASTM A500 rectangular tube is one of the most widely used Hollow Structural Sections (HSS) for buildings, bridges, industrial equipment, transportation, and structural fabrication. Manufactured from cold-formed carbon steel, it offers excellent strength, dimensional accuracy, and weldability while maintaining a high strength-to-weight ratio.

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2026-07-31

Rectangular Tube (RHS) Applications and Uses

Rectangular tubing is one of the most versatile structural steel products available today. As a common type of cold-formed hollow structural section, it is widely used in fields such as architectural structures, machinery manufacturing, vehicle production, and bridge engineering. When selecting rectangular tubing for specific applications, users typically focus on key factors such as cross-sectional dimensions, wall thickness precision, surface finish, and material properties.

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2026-07-28

Rectangular Tube Thickness Chart: Standard Wall Thickness Guide

Rectangular tube wall thickness refers to the thickness of the steel material forming the four sides of a rectangular tube. It is usually expressed as the third dimension in the tube specification, following width and height (Width × Height × Wall Thickness).

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2026-07-24

Rectangular Tube Weight Chart

Rectangular tubes, also known as rectangular hollow sections (RHS) or rectangular steel tubes, are one of the most commonly used structural steel profiles in construction and industrial applications. Unlike round pipes and square hollow sections, rectangular tubes feature an asymmetric width-to-height cross-section, providing excellent bending strength, high structural stability, and flexible design options.

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2026-07-24

Schedule 80 Pipe Weight Chart

A Schedule 80 pipe weight chart helps engineers and buyers quickly identify the weight of steel pipes based on nominal size, outside diameter, wall thickness, and length. According to ASME B36.10M standards, Schedule 80 steel pipes are manufactured with heavier walls than Schedule 40 pipes, making them suitable for applications where higher pressure ratings and stronger mechanical performance are required.

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2026-07-20

SCH 80 vs SCH 160: Differences in Wall Thickness, Pressure Rating

In engineering projects across sectors such as petrochemicals, electric power, oil and gas, and coal chemicals—which utilize the American standard pressure piping system—SCH (Schedule) serves as the key designation for defining steel pipe wall thickness, based on standards ASME B36.10 (for carbon and alloy steel pipes) and ASME B36.19 (for stainless steel pipes). A higher SCH value indicates a greater wall thickness and a higher pressure-bearing capacity.