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What Is the Equivalent of ASTM A240?

 

ASTM A240is one of the most widely used standards for stainless steel plates, sheets, and strips for pressure vessels and general applications.
At Gangsteel, we manufacture and export stainless steel plates according to ASTM A240 and asme sa 240 stainless steel plate standards for global markets.

Many customers often ask:

What are the equivalent standards of ASTM A240 in other countries or codes?
This article will explain the international equivalents, material grades, and applications of ASTM A240 stainless steel plate.


 

1. Overview of ASTM A240 Stainless Steel Plate

The ASTM A240 specification covers chromium and chromium-nickel stainless steel plate, sheet, and strip used for pressure vessels, chemical equipment, and industrial fabrication.
Typical grades include TP304, TP304L, TP316, TP316L, TP321, and TP347.

Gangsteel supplies all grades under this standard, such as:

All products are tested and certified according to ASTM A240 and ASME Section II requirements.


 

2. International Equivalents of ASTM A240

The ASTM A240 standard is recognized globally and has equivalent or similar standards in other systems:

Country/Region

Equivalent Standard

Typical Grades

ASME (USA)

ASME SA240

sa240 gr 304, sa240 gr 316, sa240 gr 321

EN (Europe)

EN 10088-2

1.4301 (304), 1.4401 (316), 1.4541 (321)

JIS (Japan)

jis g 4304 stainless steel plate

SUS304, SUS316, SUS321

GB (China)

GB/T 4237

06Cr19Ni10 (304), 022Cr17Ni12Mo2 (316L)

ISO (International)

ISO 15510

X5CrNi18-10, X2CrNiMo17-12-2

DIN (Germany)

DIN 17440 / EN 10028-7

1.4301, 1.4404, 1.4541

These equivalents define the same chemical composition and mechanical properties but are organized under different naming systems.


 

3. ASTM A240 vs ASME SA240

The ASME SA240 is the pressure-vessel version of ASTM A240, often used in boiler and reactor manufacturing.
Both standards are technically identical, but SA240 is approved by ASME Boiler and Pressure Vessel Code (BPVC).

At Gangsteel, we produce both ASTM A240 stainless plate and asme sa 240 stainless steel plate for customers requiring dual certification.
We also supply special grades such as sa240 gr 316ti, sa240 gr 316ln, and sa240 gr 317l for high-corrosion environments.


 

4. Equivalent Standards by Product Form

Different product forms of stainless steel use corresponding ASTM and ASME standards:

Product Type

ASTM Standard

ASME Standard

Plate / Sheet

astm a 240 stainless plate

asme sa 240 stainless steel plate

Seamless Pipe

astm a 312/a 312m stainless pipe

asme sa 312/sa 312m stainless pipe

Boiler Tube

astm a 213/a 213m stainless pipe

asme sa 213/sa 213m stainless pipe

Chemical Composition

astm a 959 stainless steel plate

Gangsteel manufactures all these stainless steel forms and supplies them globally for chemical, petrochemical, food, and energy industries.


 

5. Typical Equivalent Grades by Composition

ASTM A240 Grade

UNS Number

JIS

EN

DIN

304

S30400

SUS304

1.4301

X5CrNi18-10

304L

S30403

SUS304L

1.4307

X2CrNi18-9

316

S31600

SUS316

1.4401

X5CrNiMo17-12-2

316L

S31603

SUS316L

1.4404

X2CrNiMo17-12-2

321

S32100

SUS321

1.4541

X6CrNiTi18-10

347

S34700

SUS347

1.4550

X6CrNiNb18-10


 

6. Related Stainless Steel Grades from Gangsteel

Gangsteel not only supplies 304 and 316 grades but also advanced duplex and super austenitic types, including:

We also provide nickel alloy steel plate and uns stainless steel plate for high-performance industrial environments.


 

7. Conclusion

The equivalent of ASTM A240 varies depending on regional standards, but materials are essentially the same in composition and performance.
In the ASME system, the equivalent is SA240; in JIS, it is G4304; and in EN, it corresponds to EN 10088-2.

Gangsteel offers a full range of stainless steel plates certified under ASTM A240, ASME SA240, and other global standards.
For more information, visit our stainless steel product categories:

 

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