a240 304H Stainless Steel Pipe Specifications and Uses

A240 304H Stainless Steel Pipe: Specifications and Uses

At Gangsteel, a premier manufacturer and exporter of stainless steel products, we supply high-quality A240 304H stainless steel pipes compliant with ASTM A240 and ASME SA 240 standards. 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 the specifications and uses of A240 304H stainless steel pipe for applications like boilers, heat exchangers, and high-temperature piping. Contact us at admin@gangsteel.com or explore our ASME SA240 Stainless sheet.

Overview of A240 304H Stainless Steel Pipe

A240 304H stainless steel pipe is specified for chromium and chromium-nickel stainless steel products 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 pipes. Non-magnetic with a density of 8.00 g/cm³, it’s ideal for demanding environments. For pipe-specific standards, see SA 312 TP 304H; A240 focuses on plates but aligns for pipe fabrication. See sa240 gr 304h.

Chemical Composition

The composition of A240 304H stainless steel pipe ensures high-temperature performance:

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

Mechanical Properties

Enhanced strength at high temperatures. 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 304H stainless steel pipe 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.

Uses of A240 304H Stainless Steel Pipe

A240 304H stainless steel pipe is used in:

• Boilers and pressure vessels.
• Heat exchangers.
• Power generation piping.
• High-temperature chemical processing.

For low-cost options, see sa240 gr 201.

Pricing and Availability

As of October 19, 2025, A240 304H stainless steel pipe prices range from $1.60-$3.50/kg. Gangsteel offers $1.60/kg FOB (MOQ 1 ton) for sa240 gr 304h. Contact admin@gangsteel.com or visit astm a 240 stainless plate.

FAQ on A240 304H Stainless Steel Pipe

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

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

What are the mechanical properties of A240 304H stainless steel pipe?

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

How does A240 304H stainless steel 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 stainless steel pipe?

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

Why choose A240 304H stainless steel pipe?

Enhanced creep resistance and corrosion in high-temperature environments at competitive pricing.