Name: China ASTM A500 Seamless Carbon Steel Structural Pipe For Construction Building Manufacturers Suppliers Factory - Shenzhoutong Steel Pipe
Brand: Shenzhoutong
SKU: 305312715

Product Overview

Item	Details
Full Standard Name	ASTM A500 Seamless Carbon Steel Structural Pipe for Construction Building
Latest Standard Version	ASTM A500/A500M-23 (2023 Revision)
Issuing Organization	ASTM International
Product Type	Cold-Formed Carbon Steel Structural Tubing
Available Shapes	Round, Square, Rectangular, Special Polygonal Shapes
Density	7850 kg/m³ (0.284 lb/in³)

Available Production Processes

Process Type	Description	Application Scenario
Seamless	Produced by piercing rolling, hot rolling or cold drawing, no longitudinal weld	High-stress structural projects requiring higher strength and uniformity
Welded (ERW)	Electric resistance welding of rolled steel plate with full-thickness longitudinal butt welding	General structural applications, cost-effective solution
Heat Treatment	Mandatory for Grade D (minimum temperature 590°C), optional for other grades	Improved mechanical performance for special structural requirements
Surface Treatment	Bare steel, painted, oiled, hot-dip galvanized	Meets different corrosion resistance and appearance requirements

Dimensional Range

Dimensional Parameter	Maximum Limit	Typical Range
Maximum Perimeter	88 inches (2235 mm)	-
Maximum Wall Thickness	1.000 inches (25.4 mm)	1.27 mm - 25.4 mm
Round Pipe Outer Diameter	-	6.35 mm - 660 mm

Grade Classification and Mechanical Properties

Grade	Minimum Yield Strength	Minimum Tensile Strength	Minimum Elongation (2" gauge length)	Primary Application
Grade A	33,000 psi (228 MPa)	45,000 psi (310 MPa)	25%	Light general structural applications, non-critical components
Grade B	42,000 psi (290 MPa)	58,000 psi (400 MPa)	21%	Most widely used, general building and bridge structural applications
Grade C (Round Pipe)	46,000 psi (315 MPa)	62,000 psi (425 MPa)	20%	Heavy load structural applications, bridge engineering
Grade C (Shaped Pipe)	46,000 psi (315 MPa)	62,000 psi (425 MPa)	21%	Heavy load structural applications, high-strength frame components
Grade D	36,000 psi (250 MPa)	58,000 psi (400 MPa)	23%	Special round pipe applications requiring heat treatment

Note: Grade B square pipe is the most commonly used specification in structural projects

Chemical Composition Requirements (Maximum Weight Percentage)

Element	Grade A	Grade B	Grade C	Grade D
Carbon	0.26%	0.26%	0.23%	0.26%
Manganese	1.35%	1.35%	1.35%	1.35%
Phosphorus	0.04%	0.04%	0.04%	0.04%
Sulfur	0.04%	0.04%	0.04%	0.04%
Copper	0.20%	0.20%	0.20%	0.20%

Dimensional Tolerances

Pipe Type	Tolerance Item	Specification
Round Pipe	OD ≤ 1.900 inches	±0.5% of nominal outer diameter
Round Pipe	OD ≥ 2.000 inches	±0.75% of nominal outer diameter
All Types	Wall Thickness	Minimum 90% of nominal, maximum 110% of nominal (excluding weld)
All Types	Straightness	1/8 inch per 5 feet of total length
Square/Rectangular Pipe	Perpendicularity	Maximum deviation ±2° from 90° for adjacent sides
Square/Rectangular Pipe	Outer Corner Radius	Maximum 3 times of nominal wall thickness

Main Application Fields

Industry	Specific Applications
Building Construction	High-rise building frames, steel structure workshop, structural columns, beams, trusses
Bridge Engineering	Load-bearing support structures, truss components, connection parts
Industrial Machinery	Mechanical supports, equipment frames, industrial infrastructure
Infrastructure	Guardrails, sign supports, municipal engineering structures
Other General Structural Purposes	Welded, riveted, bolted structural connections

Product Advantages

Advantage	Description
High Strength-to-Weight Ratio	Provides reliable structural support while reducing overall engineering weight
Excellent Weldability	Suitable for conventional welding processes, easy on-site construction and fabrication
Good Machinability & Formability	Easy to cut, drill and bend for customized structural designs
Cost Effective	Balanced performance and price, ideal for most construction structural applications
Strict Tolerance Control	Tighter straightness and dimension tolerance than standard A500 pipes, ensuring assembly accuracy

Trade Information

Item	Details
Price Range	US$3.00 - 100.00 per ton (negotiable based on order quantity and specification)
Minimum Order Quantity	1 Ton
Sample Availability	Yes, sample cost US$5.00 per piece
Production Capacity	10000 PCS per Month
Origin	China
Supply Ability	Large stock for common specifications, customized production available for special sizes