What is ASTM A790 equivalent to?

 

What is ASTM A790?

ASTM A790 is a standard specification for seamless and welded ferritic/austenitic stainless steel pipe, also known as duplex stainless steel pipe. It is primarily used in applications requiring high strength, excellent corrosion resistance, and good weldability, such as chemical processing, oil and gas, and marine environments.

 

What Is ASTM A790 Equivalent To?

ASTM A790 Grade	UNS Designation	EN / DIN Equivalent	Common Name
A790 S31803 / S32205	UNS S31803 / S32205	EN 1.4462 / X2CrNiMoN22-5-3	Duplex 2205
A790 S32750	UNS S32750	EN 1.4410 / X2CrNiMoN25-7-4	Super Duplex 2507
A790 S32760	UNS S32760	EN 1.4501 / X2CrNiMoCuWN25-7-4	Super Duplex (Zeron 100)
A790 S32304	UNS S32304	EN 1.4362 / X2CrNiN23-4	Lean Duplex 2304

 

ASTM A790 Chemical Composition

ASTM A790 Mechanical Properties

 

What material is ASTM A790 uns S31803?

ASTM A890 CD3Mn or Grade 4A is the nearest equivalent grade to the wrought super duplex stainless steel UNS S32205. It is also designated as ASTM A995 and ASME SA351/995 grade CD3Mn or 4A, also written as J92205 or X2CrNiMoN22.

What is ASTM A790 uns S32760 material?

Astm A790 Uns S32760 Welded Pipes have a smooth finish as they are made from cold-formed stainless steel and also have strong mechanical traits. They are resistant to chloride pitting and coercive corrosion. 18 Swg., 14 20 Swg., Swg. Swg., 12 16 Swg., 10 Swg.

 

What is the difference between S31803 and S32205?

 S32205 has tighter composition control and improved corrosion resistance compared to S31803.