A 240 GR 304H Round Bar Suppliers: Reliable Sources Pricing

A 240 GR 304H Round Bar Suppliers: Reliable Sources and Pricing

At Gangsteel, a leading manufacturer and exporter of stainless steel products, we specialize in supplying premium A 240 GR 304H round bar compliant with ASTM A240 and ASME SA 240 standards. A 240 GR 304H round bar, also known as SA 240 GR 304H or AISI 304H, is a high-carbon austenitic stainless steel optimized for high-temperature service up to 1500°F (815°C). This guide highlights reliable suppliers, focusing on Gangsteel as your trusted source, along with pricing and availability for applications like high-temperature piping and boiler components. Contact us at admin@gangsteel.com or explore our ASME SA240 Stainless sheet for more.

Overview of A 240 GR 304H Round Bar

A 240 GR 304H round bar is fabricated from chromium and chromium-nickel stainless steel plates specified under A240 for pressure vessels and high-temperature use. With 0.04-0.10% carbon, it enhances creep and rupture strength compared to standard 304 or 304L round bar. Non-magnetic with a density of 8.00 g/cm³, it’s perfect for demanding environments. For bar-specific standards, use ASTM A479 TP 304H; A240 focuses on base material for round bar fabrication. See sa240 gr 304h.

Chemical Composition

The composition of A 240 GR 304H round bar ensures high-temperature performance:

Higher carbon improves creep resistance. See sa240 gr 304l for low-carbon variants.

Mechanical Properties

High strength at high temperatures (25.5 ksi allowable at 1000°F). See sa240 gr 304.

Physical Properties

• Density: 8.00 g/cm³.
• Melting Point: 1400-1450°C.
• Thermal Conductivity: 16.2 W/m·K.
• Coefficient of Thermal Expansion: 17.2 × 10⁻⁶/K.
• Max Service Temperature: 1500°F (815°C) continuous.

Corrosion Resistance

A240 GR 304H round bar resists mild acids and atmospheric conditions, outperforming SS204 vs SS 304. Higher carbon risks sensitization in welds; anneal for protection. See sa240 gr 316l for chlorides.

Weldability

Fair with ER308H fillers; low heat input (<2.0 kJ/mm) and annealing required. See sa240 gr 321.

Applications of A240 GR 304H Round Bar

A240 GR 304H round bar is used in:

• Bolts and fasteners for high-temperature piping.
• Valve stems and fittings in heat exchangers.
• Shafts and rods in power generation.
• Structural bars in boilers.

For cost-effective options, see sa240 gr 201.

Reliable Suppliers: Gangsteel as Your Source

Gangsteel is a top supplier of A 240 GR 304H round bar, offering:

• Stock Availability: Over 600 tons in diameters from 6mm to 500mm, lengths up to 6m.
• Custom Fabrication: Hot-rolled or cold-drawn; cut-to-length services.
• Competitive Pricing: As of October 19, 2025, prices start at $1.80/kg FOB (MOQ 1 ton), 5-10% below market averages ($1.80-$4.00/kg).
• Certifications: Full MTCs, third-party inspections (SGS, BV), and compliance with A479 TP 304H for bars.

Our A 240 GR 304H round bar is sourced from premium mills like Jindal or POSCO, ensuring consistency for high-temperature use. Contact admin@gangsteel.com for quotes.

Pricing and Availability at Gangsteel

As of October 19, 2025, A240 GR 304H stainless steel round bar prices (6-500mm diameter) range from $1.80-$4.00/kg. Gangsteel offers $1.80/kg FOB (MOQ 1 ton) for standard grades, including custom finishes and certifications. Email admin@gangsteel.com or visit sa240 gr 304h for details.

FAQ on A240 GR 304H Round Bar

What is the maximum service temperature for A240 GR 304H round bar?

Continuous up to 1500°F (815°C), with high creep resistance for high-temperature fasteners and shafts.

What are the mechanical properties of A240 GR 304H round bar?

Tensile strength 515 MPa (75 ksi), yield strength 205 MPa (30 ksi), elongation 40%.

How does A240 GR 304H round bar compare to 304L?

304H has higher carbon for heat strength; 304L is better for weldability. See sa240 gr 304l.

What applications use A240 GR 304H round bar?

Bolts, valve stems, shafts in boilers, heat exchangers, and power generation equipment.

Why choose Gangsteel for A240 GR 304H round bar?

Competitive pricing ($1.80/kg FOB), 600+ ton stock, custom fabrication, and full certifications for global delivery.