ASTM A479 Stainless Steel Bars for Boilers

  • Grade: 304, 304L, 304H, 304LN, 309S, 310S, 310H, 316, 316L, 316H, 316Ti, 316LN, 321, 321H, 347, 347H, 348, 348H, S38815, S31803, S32205, S32550, S32750, S32760, S32906, S40500,S43000, S43035, S44400, S43100
  • Manufacturing Methods: hot-finished or cold-finished
  • Shapes: Rounds, Squares, Hexagons, angles, T-Shapes, Channels

Features

ASTM A479/A479M Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Chemical Composition (wt.%)
Grade C % Mn % P % S % Si % Cr % Ni % Mo % Other Elements
304 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
304L 0.03 2.00 0.045 0.030 1.00 18.0-20.0 8.0-13.0
304H 0.04-0.10 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
304LN 0.03 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
309S 0.08 2.00 0.045 0.030 1.00 22.0-24.0 12.0-15.0
310S 0.08 2.00 0.045 0.030 1.50 24.0-26.0 19.0-22.0
310H 0.04-0.10 2.00 0.045 0.030 1.50 24.0-26.0 19.0-22.0
316 0.08 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
316L 0.03 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
316H 0.04-0.10 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
316Ti 0.08 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0 Ti: 5(C+N)-0.70
316LN 0.03 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.0-3.0
321 0.08 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Ti: 5(C+N)-0.70
321H 0.04-0.10 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Ti: 5(C+N)-0.70
347 0.08 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Cb: 10*C-1.0
347H 0.04-0.10 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Cb: 10*C-1.0
348 0.08 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Cb+Ta: 10*C-1.0, Ta: 0.10
348H 0.04-0.10 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 Cb+Ta: 10*C-1.0, Ta: 0.10
S38815 0.03 2.00 0.040 0.020 5.50-6.50 13.0-15.0 15.0-17.0 0.75-1.50 Al: 0.30; Cu: 0.75-1.50
S31803 0.03 2.00 0.030 0.020 1.00 21.0-23.0 4.5-6.5 2.5-3.5
S32205 0.03 2.00 0.030 0.020 1.00 22.0-23.0 4.5-6.5 3.0-3.5
S32550 0.04 1.50 0.040 0.030 1.00 24.0-27.0 4.5-6.5 2.9-3.9
S32750 0.03 1.20 0.035 0.020 0.80 24.0-26.0 6.0-8.0 3.0-5.0
S32760 0.03 1.00 0.030 0.010 1.00 24.0-26.0 6.0-8.0 3.0-4.0
S32906 0.03 1.50 0.030 0.010 1.00 27.0-30.0 4.5-6.5 3.0-5.0
S40500 0.08 1.00 0.040 0.030 1.00 11.50-14.50
S43000 0.12 1.00 0.040 0.030 1.00 16.00-18.00
S43035 0.12 1.00 0.040 0.030 1.00 16.00-18.00
S44400 0.025 1.00 0.040 0.010 1.00 18.00-20.00 1.75-2.50
S43100 0.2 1.00 0.040 0.030 1.00 15.00-17.00
Mechanical Properties
Type Tensile Strength (ksi) Yield Strength (ksi) Elongation (%)
304 75 30 40
304L 70 25 40
304H 75 30 40
304LN 75 30 40
309S 75 30 40
310S 75 30 40
310H 75 30 40
316 75 30 40
316L 70 25 40
316H 75 30 40
316Ti 75 30 40
316LN 75 30 40
321 75 30 40
321H 75 30 40
347 75 30 40
347H 75 30 40
348 75 30 40
348H 75 30 40
S38815 120 80 25
S31803 90 65 25
S32205 90 65 25
S32550 110 80 15
S32750 110 80 15
S32760 110 80 15
S32906 116 87 18
S40500 60 35 20
S43000 60 35 22
S43035 60 35 22
S44400 60 40 20
S43100 100 75 15

Technical Specifications

Specification Value
Standard ASTM A479/A479M Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
Grade 304, 304L, 304H, 304LN, 309S, 310S, 310H, 316, 316L, 316H, 316Ti, 316LN, 321, 321H, 347, 347H, 348, 348H, S38815, S31803, S32205, S32550, S32750, S32760, S32906, S40500,S43000, S43035, S44400, S43100
Delivery Condition Normalized, Tempered, Annealed, Quenched
MFG. Methods Hot-finished or cold-finished bars
Hot-rolled or extruded shapes
Shape of Bars Rounds, Squares, Hexagons, angles, T-Shapes, Channels
Density 7.93 – 7.98g/cm³
Dimension Rounds
Diameter Range: 1/8 inch (3.18 mm) to 12 inches (304.8 mm)
Squares
Side Length Range: 1/4 inch (6.35 mm) to 6 inches (152.4 mm)
Hexagons
Flat-to-Flat Range: 1/4 inch (6.35 mm) to 6 inches (152.4 mm)
Angles
Leg Length Range: 1/2 inch (12.7 mm) to 6 inches (152.4 mm)
Thickness Range: 1/8 inch (3.18 mm) to 3/4 inch (19.05 mm)
T-Shapes
Leg Length Range: 1 inch (25.4 mm) to 3 inches (76.2 mm)
Thickness Range: 1/8 inch (3.18 mm) to 1/2 inch (12.7 mm)
Channels
Flange Width Range: 3/4 inch (19.05 mm) to 3 inches (76.2 mm)
Web Height Range: 1 inch (25.4 mm) to 4 inches (101.6 mm)
Thickness Range: 1/8 inch (3.18 mm) to 3/8 inch (9.53 mm)
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
Tests Chemical Analysis, Tensile Test, Hardness Test, Visual and Dimensional Inspection, Intergranular Corrosion Test, Impact Test, Ultrasonic Testing
Packing

Small diameter packed in plywood box; large diameter packed on plywood pallets.

Application

Boiler and Pressure Vessel Construction:

Pressure Vessels: Utilized in constructing high-pressure vessels due to their high strength and resistance to high temperatures and pressure.
Heat Exchangers: This material is essential for heat exchanger tubes and parts, benefiting from its excellent thermal conductivity and corrosion resistance.
Chemical Processing Equipment:

Reactors and Tanks: These are used in chemical reactors and storage tanks where resistance to corrosion from various chemicals is crucial.
Piping Systems: Piping systems are employed in piping and plumbing systems within chemical plants, where durability and corrosion resistance are essential.
Oil and Gas Industry:

Pipeline Components: Used for pipelines and associated components in the oil and gas industry, offering resistance to corrosive environments.
Offshore Structures: These are essential in constructing offshore oil rigs and platforms due to their robustness and resistance to saline conditions.
Food and Beverage Industry:

Processing Equipment: Used in food processing equipment where sanitary conditions and resistance to food acids are important.
Storage and Handling: It is ideal for storage tanks, mixers, and conveyors due to its ease of cleaning and non-reactive nature.
Pharmaceutical Industry:

Manufacturing Equipment: Utilized in manufacturing pharmaceutical products, ensuring contamination-free production due to its non-reactive properties.
Sterile Environments: Suitable for use in sterile and clean room environments due to its ability to maintain high standards of cleanliness.
Aerospace and Defense:

Structural Components: Used in constructing aircraft and spacecraft components that require high strength-to-weight ratios and resistance to extreme environments.
Fasteners and Fittings: Essential for fasteners, fittings, and various small precision components within aerospace applications.
Automotive Industry:

Exhaust Systems: Employed in manufacturing exhaust systems and components, providing durability under high temperatures and corrosive conditions.
Engine Components: Used in various engine parts that demand high performance and reliability.
Marine Applications:

Shipbuilding: This material is essential for components in shipbuilding, including hulls, propellers, and fittings, where resistance to seawater corrosion is vital.
Dock and Harbor Equipment: Used in the construction of docks, harbor equipment, and coastal infrastructure due to its resilience in saline environments.

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