ASTM A554 Stainless Steel Welded Mechanical Tubing Specification, Grades, Sizes & Applications

What is ASTM A554?

ASTM A554 is the standard specification for welded stainless steel mechanical tubing used in structural, ornamental and mechanical applications. ASTM A554 tubing is manufactured from austenitic stainless steel grades and is widely used where excellent corrosion resistance, attractive appearance, strength and durability are required. These tubes are commonly used in architecture, furniture, handrails, transportation equipment and industrial fabrication projects.

Kamal Steels is a leading supplier and exporter of ASTM A554 Stainless Steel Welded Tubing including ASTM A554 TP304 Tubes, ASTM A554 TP304L Tubes, ASTM A554 TP316 Tubes and ASTM A554 TP316L Tubes in round, square, rectangular and custom shapes with polished, brushed and mill finishes for domestic and international applications.

Table of Contents

ASTM A554 Specification

ASTM A554 covers welded stainless steel mechanical tubing manufactured for structural, decorative and mechanical applications. The specification includes requirements for dimensions, tolerances, appearance, mechanical properties and manufacturing processes.

Specification Details
Standard ASTM A554
Product Type Welded Stainless Steel Mechanical Tubes
Tube Shape Round, Square, Rectangular
Manufacturing Welded
Grades MT304, MT304L, MT316, MT316L
Surface Finish Mill Finish, Polished, Mirror Finish
Length Up to 6 Meters & Custom Lengths

ASTM A554 Mechanical Tubing

ASTM A554 Mechanical Tubing is designed for applications requiring good strength, dimensional accuracy and corrosion resistance. These tubes are commonly used in machinery, equipment manufacturing, automotive components and engineering structures.

The tubing offers excellent weldability, fabrication characteristics and long service life, making it suitable for various industrial and commercial projects.

ASTM A554 Ornamental Tubing

ASTM A554 Ornamental Tubing is widely used for decorative and architectural applications. The attractive surface finish and corrosion resistance of stainless steel make these tubes ideal for handrails, balustrades, gates, furniture and decorative structures.

Polished and mirror-finished ASTM A554 Tubes are commonly specified in commercial buildings, residential projects and interior design applications.

ASTM A554 Structural Tubing

ASTM A554 Structural Tubes are used in load-bearing and framework applications where strength and durability are essential. These tubes are extensively utilized in construction, transportation systems, industrial equipment and infrastructure projects.

Their excellent corrosion resistance and aesthetic appearance make them a preferred choice over carbon steel in many modern structures.

ASTM A554 Grades

  • ASTM A554 MT304 Tube
  • ASTM A554 MT304L Tube
  • ASTM A554 MT316 Tube
  • ASTM A554 MT316L Tube

ASTM A554 Tube Types

  • ASTM A554 Round Tubes
  • ASTM A554 Square Tubes
  • ASTM A554 Rectangular Tubes
  • ASTM A554 Polished Tubes
  • ASTM A554 Mirror Finish Tubes
  • ASTM A554 Brushed Finish Tubes

ASTM A554 Chemical Composition

Grade Carbon (%) Chromium (%) Nickel (%)
MT304 0.08 Max 18.0 - 20.0 8.0 - 11.0
MT304L 0.035 Max 18.0 - 20.0 8.0 - 12.0
MT316 0.08 Max 16.0 - 18.0 10.0 - 14.0
MT316L 0.035 Max 16.0 - 18.0 10.0 - 14.0

ASTM A554 Mechanical Properties

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
MT304 515 Min 205 Min 35 Min
MT304L 485 Min 170 Min 35 Min
MT316 515 Min 205 Min 35 Min
MT316L 485 Min 170 Min 35 Min

ASTM A554 Equivalent Grades

Grade UNS Number Werkstoff No.
MT304 S30400 1.4301
MT304L S30403 1.4307
MT316 S31600 1.4401
MT316L S31603 1.4404

ASTM A554 Tube Size Chart

Tube Shape Common Sizes
Round Tube 12.7 mm to 203.2 mm OD
Square Tube 12 mm x 12 mm to 100 mm x 100 mm
Rectangular Tube 20 x 10 mm to 150 x 100 mm

ASTM A554 Applications

  • Architectural Structures
  • Handrails & Balustrades
  • Furniture Manufacturing
  • Interior Decoration
  • Automotive Components
  • Transportation Equipment
  • Construction Industry
  • Industrial Frameworks
  • Commercial Buildings
  • Infrastructure Projects

ASTM A554 Tube Supplier & Exporter in India

Kamal Steels is a leading ASTM A554 Tube Supplier, Manufacturer and Exporter in India offering stainless steel round tubes, square tubes and rectangular tubes in various grades, finishes and sizes. We maintain ready stock and provide customized solutions for architectural, industrial and commercial applications.

Why Choose Kamal Steels?

  • Trusted Stainless Steel Tube Supplier
  • Ready Stock Availability
  • Competitive Pricing
  • Custom Sizes & Finishes
  • Mirror & Polished Tubes Available
  • Worldwide Export Supply
  • Fast Delivery
  • Quality Assurance & Documentation

Frequently Asked Questions

ASTM A554 is the standard specification for welded stainless steel mechanical tubing used in structural, ornamental and mechanical applications.

ASTM A554 Tubing is commonly used in handrails, furniture, architectural structures, construction projects and industrial frameworks.

ASTM A554 is primarily intended for mechanical, ornamental and structural applications rather than pressure piping systems.

Common grades include MT304, MT304L, MT316 and MT316L stainless steel tubing.

ASTM A554 Tubes are available in round, square, rectangular and custom profiles.

Mill finish, polished finish, brushed finish and mirror finish stainless steel tubes are commonly available.

Yes, ASTM A554 Stainless Steel Tubes provide excellent corrosion resistance and durability for indoor and outdoor applications.

Kamal Steels offers high-quality ASTM A554 Tubes with ready stock, competitive pricing, multiple finishes and worldwide export support.

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