Ranfit Metal is a well-known manufacturer, supplier, and stockiest of IS 4923 YST 310 Hot Finish Circular Hollow Section. Hot-finished IS 4923 YST 310 CHS are commonly used in structural and mechanical applications due to their high strength, toughness, and excellent weldability. IS 4923 YST 310 Circular Hollow Hot-finished Sections signifies a minimum yield strength of 310 MPa, with good ductility and toughness. This makes it suitable for structures that require materials to withstand dynamic loads. Depending on the surface treatment applied, IS 4923 YST 310 HFCHS Tubing can be enhanced with coatings that improve corrosion resistance, making them suitable for outdoor and harsh environments. The chemical composition of IS 4923 YST 310 Circular Hot Finish Hollow Section includes carbon, silicon, manganese, phosphorus, sulfur, and other elements, which are carefully controlled to ensure consistent quality and performance. IS 4923 YST 310 Seamless circular hot finish hollow sections is available in a range of sizes, including outer diameters from 21.3 mm to 508 mm, and wall thicknesses from 2.3 mm to 20 mm. The tubes are supplied in standard lengths of 6 meters, but can be cut to custom lengths upon request. IS 4923 YST 310 Round Structural Hollow Section is widely used in various sectors including construction, infrastructure, automotive, and manufacturing. Common applications include: Structural supports in buildings and bridges, Pipelines and railings, Frames for heavy machinery and equipment, Architectural features and designs etc.

Key Standards

IS 4923 The Indian standard for hollow steel sections.

YST 310: Refers to the yield strength of the material, which is 310 MPa.

Hot Finish IS 4923 YST 310 Circular Hollow Section Specifications

IS 4923 YST 310 Hot Finish Circular Hollow Section Chemical Composition

Specification	Steel Grade	C	Si	Mn	P	S
IS 4923	YST 310	0.12% max.	0.03% to 0.08%	0.50% max.	0.05% max.	0.05% max.

IS 4923 Hot Finish YST 310 Circular Hollow Section Mechanical Strength

Grade	Min. Tensile Strength Mpa	Min. Yield Stress Mpa	Min. Elongation Percent for size
			25.4 and under	over25.4
YST 310	330	310	12	20

Types of EN 10219 S355J2H Hollow Section Square

IS 4923 Hot Finish YST 310 Circular Hollow Section Size Chart

Hot FinishIS 4923 YST 310 Circular Hollow Section Weight Chart

Hot Finish IS 4923 YST 310 CHS Dimensional Tolerances

Designation	Property		Tolerance
&	Outside Diameter D		±1.0% with a min of ±0.5 mm and a max of ±10 mm
	Thickness t	Welded	–10%
		Seamless	–10% but between 10% and 12.5% may occur over not more than 25% of the circumference
		Note: Positive deviation is limited by mass tolerance
Measured at the centre of the length	Straightness (x or y direction)		0.20% L
Mass per unit length	Mass of section	Welded	±6.0% on individual lengths
		Seamless	+8.0% –6% on individual lengths
Standard	Length L		+150 mm	–0 mm

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Hot Finish IS 4923 YST 310 CHS Available Types

IS 4923 YST 310 Hot Finish CHS Manufacturing Process

IS 4923 YST 310 Hot Finish Circular Hollow Sections – Application Industrty

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Suppliers and Exporters of EN 10219 S355J2H Square Hollow Sections in cities like

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