ASTM A240 304H Stainless Steel Pipe Suppliers

ASTM A240 304H Stainless Steel Pipe Suppliers: Global Availability and Rates

At Gangsteel, a leading manufacturer and exporter of stainless steel products from China, we specialize in supplying premium ASTM A240 304H stainless steel pipe compliant with ASTM A240 and ASME SA 240 standards. ASTM A240 304H stainless steel pipe, 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 details global suppliers, availability, and current market rates for ASTM A240 304H stainless steel pipe, based on data as of October 19, 2025. For custom quotes, contact us at admin@gangsteel.com or explore our ASME SA240 Stainless sheet offerings.

Overview of ASTM A240 304H Stainless Steel Pipe

ASTM A240 304H stainless steel pipe is fabricated from plates/sheets specified for chromium and chromium-nickel stainless steel used in pressure vessels and high-temperature service. With 0.04-0.10% carbon, it enhances creep and rupture strength compared to standard 304 or 304L pipe. Non-magnetic with a density of 8.00 g/cm³, it’s ideal for demanding environments. For seamless pipe standards, use ASTM A312 TP 304H or SA 213 TP 304H; A240 focuses on base material for pipe fabrication. See sa240 gr 304h.

Chemical Composition

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.

Advantages of A240 304H Stainless Steel Pipe

A240 304H stainless steel pipe offers:

• Creep Resistance: High carbon boosts strength up to 1500°F.
• Seamless Construction: Reduces leak risks in high-pressure systems.
• Corrosion Resistance: Resists mild acids, outperforming SS204 vs SS 304.
• Non-Magnetic: SA 240 304 non magnetic for sensitive applications.
• Formability: 40% elongation supports bending.

See sa240 gr 316l for chloride resistance.

Specifications

• Standards: ASTM A240 for plates; SA 213 TP 304H for seamless pipe.
• Dimensions: OD 6.35-127mm (1/4"-5"); WT 0.5-12.7mm (Sch 5S-80S); length up to 6m.
• Tolerance: OD ±0.4%; WT ±12.5%.
• Surface Finish: Annealed and pickled; bright annealed optional.

Global Suppliers of A240 304H Stainless Steel Pipe

Pricing and Availability

As of October 19, 2025, A240 304H stainless steel pipe prices (Sch 10S, 1-4" OD) range from $1.80-$4.00/kg. Gangsteel offers $1.80/kg FOB (MOQ 1 ton) for sa240 gr 304h. Contact admin@gangsteel.com or visit astm a 240 stainless plate.

FAQ on A240 304H Seamless Pipe

What is the maximum service temperature for A240 304H seamless pipe?

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

What are the mechanical properties of A240 304H seamless pipe?

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

How does A240 304H seamless pipe compare to 304L?

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

What applications use A240 304H seamless pipe?

Boilers, heat exchangers, power generation piping, and high-temperature chemical processing.

Why choose Gangsteel for A240 304H seamless pipe?

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