Rectangular Hollow Sections for Structural Support

Price Negotiable

Price: 400 USD/TON

MOQ: 1

Delivery Time: 7 dyas

Brand: Jinxi Pipe

Product Description

Rectangular Hollow Sections for Structural Support

Specifications

Rectangular Hollow Sections (RHS) are structural steel tubes characterized by a rectangular cross-section and a hollow interior. They offer a high strength-to-weight ratio and directional bending resistance, making them ideal for load-bearing applications like building frames, beams, and columns. RHS typically feature sizes ranging from 20x10mm to 400x200mm with wall thicknesses between 1.5mm and 12.5mm+, providing versatile, cost-effective solutions for construction and mechanical engineering.

American Standard	Standard Name
A500/A500M	Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

Rectangular Hollow Sections Chemical Composition

Sources American Standard A500 / A500M TABLE 1 Chemical Requirements

Element	Composition, %
	Grades A, B and D		Grace C
	Heat	Product	Heat	Product
	Analysis	Analysis	Analysis	Analysis
Carbon, max A	0.26	0.3	0.23	0.27
Manganese, max A	1.35	1.4	1.35	1.4
Phosphorus, max	0.035	0.045	0.035	0.045
Sulfur, max	0.035	0.045	0.035	0.045
Copper, min B	0.2	0.18	0.2	0.18
A For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.60% by product analysis. B If copper-containing steel is specified in the purchase order.

Rectangular Hollow Sections Mechanical Properties

Sources American Standard A500 / A500M TABLE 2 Tensile Requirements

Round structural tubing
	Grade A	Grade B	Grade C	Grade D
Tensile strength, min, psi (MPa)	45,000 (310)	58,000 (400)	62,000 (425)	58,000 (400)
Yield strength, min, psi, (MPa)	33,000 (230)	42,000 (290)	46,000 (315)	36,000 (250)
Elongation in 2 in. (50 mm), min, %D	25A	23B	21C	23B
Shaped structural tubing
	Grade A	Grade B	Grade C	Grade D
Tensile strength, min, psi (MPa)	45,000 (310)	58,000 (400)	62,000 (425)	58,000 (400)
Yield strength, min, psi, (MPa)	39,000 (270)	46,000 (315)	50,000 (345)	36,000 (250)
Elongation in 2 in. (50 mm), min, %D	25A	23B	21C	23B
A Applies to specified wall thicknesses (t) equal to or greater than 0.120 in. (3.05 mm). For lighter specified wall thicknesses, the minimum elongation values shall be calculated by the formula: percent elongation in 2 in. (50mm) = 56t + 17.5, rounded to the nearest percent. For A500M use the following formula: 2.2t + 17.5, rounded to the nearest percent. B Applies to specified wall thicknesses (t) equal to or greater than 0.180 in. (4.57 mm). For lighter specified wall thicknesses, the minimum elongation values shall be calculated by the formula: percent elongation in 2 in. (50 mm) = 61t + 12, rounded to the nearest percent. For A500M use the following formula: 2.4t + 12, rounded to the nearest percent. C Applies to specified wall thicknesses (t) equal to or greater than 0.120 in. (3.05 mm). For lighter specified wall thicknesses, the minimum elongation values shall be by agreement with the manufacturer. D The minimum elongation values specified apply only to tests performed prior to shipment of the tubing.