SA 240 Equivalent Material

 

 

 

What is SA 240 Equivalent Material?

SA 240, under ASME SA 240, specifies stainless steel grades for plates, sheets, and strips used in pressure vessels and general applications, with properties like corrosion resistance and SA 240 304 non magnetic characteristics for austenitic grades.

Equivalent materials are grades from other international standards (e.g., EN, JIS, GB) that have similar chemical composition, mechanical properties, and applications. These equivalents allow global sourcing and compatibility for applications like plat stainless 304 and SA 240 GR 304 pipe. Below, we focus on five common SA 240 grades and their equivalents in the United States (AISI/UNS), Europe (EN), Japan (JIS), and China (GB).

 

Common SA 240 Grades and Their International Equivalents

The following table lists equivalent materials for SA 240 GR 304, 304L, 316, 316L, and 321 across major international standards, along with their UNS numbers and key characteristics:

SA 240 Grade	UNS Number	AISI (USA)	EN (Europe)	JIS (Japan)	GB (China)	Key Characteristics
SA 240 GR 304	S30400	AISI 304	1.4301 (X5CrNi18-10)	SUS304	06Cr19Ni10	Excellent corrosion resistance, SA 240 304 non magnetic, food-grade, good weldability
SA 240 GR 304L	S30403	AISI 304L	1.4306/1.4307 (X2CrNi19-11)	SUS304L	022Cr19Ni10	Low-carbon 304, superior weldability, ideal for chemical/food industries
SA 240 GR 316	S31600	AISI 316	1.4401 (X5CrNiMo17-12-2)	SUS316	06Cr17Ni12Mo2	Molybdenum-enhanced for pitting resistance in chloride environments
SA 240 GR 316L	S31603	AISI 316L	1.4404 (X2CrNiMo17-12-2)	SUS316L	022Cr17Ni12Mo2	Low-carbon 316, excellent for welded marine/chemical applications
SA 240 GR 321	S32100	AISI 321	1.4541 (X6CrNiTi18-10)	SUS321	06Cr18Ni11Ti	Titanium-stabilized for high-temperature resistance, used in heat exchangers

*Sources: ASME SA 240, ASTM A240, EN 10088, JIS G4304, GB/T 20878, as of October 14, 2025.

Notes on Equivalents

• AISI (USA): AISI designations (e.g., AISI 304) are widely used in North America and align with SA 240 grades.
• EN (Europe): EN numbers (e.g., 1.4301) are based on chemical composition (e.g., X5CrNi18-10 indicates ~18% Cr, 10% Ni). 304L has two EN equivalents (1.4306/1.4307) with slight variations in nickel.
• JIS (Japan): SUS304 and SUS316 align closely with SA 240 grades, commonly used in Asia.
• GB (China): 06Cr19Ni10 (304) and 022Cr17Ni12Mo2 (316L) reflect China’s naming convention, with “022” indicating low carbon.
• UNS: Unified Numbering System provides a global identifier (e.g., S30400 for 304).

Gangsteel’s sa 240 gr 304 and sa 240 gr 304l plates are equivalent to these international standards.

 

Properties of SA 240 GR 304 (Representative Grade)

SA 240 GR 304 (1.4301, SUS304) serves as a benchmark for SA 240 properties.

Chemical Composition

Element	Range (%)
Carbon (C)	0.00 - 0.08
Manganese (Mn)	0.00 - 2.00
Silicon (Si)	0.00 - 0.75
Phosphorus (P)	0.00 - 0.045
Sulfur (S)	0.00 - 0.030
Chromium (Cr)	18.00 - 20.00
Nickel (Ni)	8.00 - 10.50
Nitrogen (N)	0.00 - 0.10
Iron (Fe)	Balance

Mechanical Properties (Annealed, 8-75 mm thick)

Property	Value (Minimum)
Tensile Strength	515 MPa (74.7 ksi)
Yield Strength (0.2% Offset)	205 MPa (29.7 ksi)
Elongation (A5, 50 mm)	40%
Hardness (Brinell)	≤ 201 HB

Physical Properties

• Density: 8.00 g/cm³ (SA 240 GR 304 density).
• Melting Point: ~1400-1450°C.
• Thermal Conductivity: 16.2 W/m·K.
• Coefficient of Thermal Expansion: 17.2 × 10⁻⁶/K.

 

Applications and Equivalents

SA 240 grades and their equivalents are used in:

• Food Processing: SA 240 GR 304 (1.4301, SUS304) for tanks and plat stainless 304.
• Chemical Industry: SA 240 GR 316L (1.4404, SUS316L) for chloride resistance.
• High-Temperature: SA 240 GR 321 (1.4541, SUS321) for heat exchangers.

For chloride-heavy environments, explore sa 240 gr 316l; for high-temperature stability, see sa 240 gr 321.

 

Pricing and Availability

As of October 14, 2025, SA 240 GR 304 plate prices (2B finish, 3-6mm) range from $1.55-$3.50/kg globally. Gangsteel offers $1.60/kg FOB (MOQ 1 ton) for sa 240 gr 304 plates.

 

Why Choose Gangsteel?

Gangsteel provides certified SA 240 plates with equivalent international standards and competitive SS 304 plate price. For quotes or to learn what is SA 304, visit our astm a 240 stainless plate page or email admin@gangsteel.com.