ASTM A285 Grade C pressure vessel steel plate Specifications

Nov 07, 2025 Leave a message

ASTM-A285-A285M-Standard-Specification.pdf

ASTM A285

 

ASTM A285 Grade C Boiler Steel Plate

The ASTM A285 specification covers low to intermediate tensile strength carbon steel for use in non–critical pressure vessel applications.

The plate is used as a weldable material in the fabrication of pressure vessels and industrial boilers using fusion welding i.e. the joining of the material by melting them together to form one. The plate is offered at a maximum thickness of 50mm for all grades to ensure internal robustness.

As ASTM A285 does not promote high tensile strength, it is used commonly in the fabrication of storage tanks and low pressure temperature controlled vessels.

GNEE Limited offers the most common grade, ASTM 285 Grade C, in a variety of sizes and thicknesses, and is available as ex–stock or directly shipped from the mill. As with all our steels, our plates come with mill test certification and stampings and we can arrange for a variety of tests to be performed on the material if specified.

Alternatively, the customer can arrange testing via a third party testing house.

 

ASTM A285 Grade C

 

 

ASTM A285 Grade C Boiler Steel PlateAlthough only effective in lower pressure environments, ASTM 285 Grade C is found throughout industry in a wide range or low pressurised applications. ASTM A285 Grade C alloy steel plate is used in a range of other applications including structural, mechanical and general engineering purposes.

 

ASTM A285 Grade C hot rolled steel plate is a low to intermediate yield steel used in the fabrication of carbon steel pressure vessels and boilers.

The steel is intended for use in standard tanks and boilers rather than high pressurised vessels due to the steels lower yield strength. ASTM

 

A285 Grade C pressure vessel steel plate is supplied throughout the oil gas and petrochemical industry, and GNEE Limited hold this material in stock.

 

The material has good forming and welding characteristics under conventional methods.

 

Chemical and Mechanical Values for ASTM A285 Grade C boiler steel plate 

 

 

Chemical Composition

   
C 0.16
Si 0.35
Mn 0.4/1.2
P 0.03
S 0.03
Al 0.02
Cr 0.3
Cu 0.3
N 0.3
Mo 0.08
Nb 0.01
Ti 0.03
V 0.02

 

Mechanical Properties

Grade

Thickness
(in)

Yield strength
(min ksi)

Tensile strength
(ksi)

Elongation in 2" 1)
(min %)

Elongation in 8" 1)
(min %)

Grade C

0.1875 - 2.00

30

55 - 75

27

23

 

Dimension Range

 

 

Hide/Show specific columns Edit

Grade

Product type

Thickness
(in)

Width
(in)

Length
(in)

Grade C

Plate

0.1875 - 2.00

72 - 120

240 - 1020

Width: Please inquire for plate widths less than 72 in. or greater than 120 in.

Length: Please inquire for plate lengths less than the listed minimum or greater than the listed maximum.

 

Applications of ASTM A285 Grade C

 

ASTM A285 Grade C Boiler Steel Plate

ASTM A285 Grade C hot rolled alloy steel plates are commonly used in:

 

  • Manufacturing of pressure vessels for oil and gas industries.
  • Construction of storage tanks and boilers.
  • Structural applications that require good weldability and moderate strength.
  • General fabrication where high strength is not a primary requirement.

 

In summary, ASTM A285 Grade C steel plates provide a versatile and economical solution for various applications in the industrial and structural sectors, particularly when low to intermediate strength is sufficient.

 

Request A Quote

 

If you want to learn more about GNEE's products, you can send an email to alloy@gneesteelgroup.com. We are more than happy to assist you.

 

Grades Of Pressure Vessel Plates Supplied By GNEE
ASTM ASTM A202/A202M ASTM A202 Grade A ASTM A202 Grade B    
ASTM A203/A203M ASTM A203 Grade A ASTM A203 Grade B ASTM A203 Grade D ASTM A203 Grade E
ASTM A203 Grade F      
ASTM A204/A204M ASTM A204 Grade A ASTM A204 Grade B ASTM A204 Grade C  
ASTM A285/A285M ASTM A285 Grade A ASTM A285 Grade B ASTM A285 Grade C  
ASTM A299/A299M ASTM A299 Grade A ASTM A299 Grade B    
ASTM A302/A302M ASTM A302 Grade A ASTM A302 Grade B ASTM A302 Grade C ASTM A302 Grade D
ASTM A387/A387M ASTM A387 Grade 5 Class1 ASTM A387 Grade 5 Class2 ASTM A387 Grade 11 Class1 ASTM A387 Grade 11 Class2
ASTM A387 Grade 12 Class1 ASTM A387 Grade 12 Class2 ASTM A387 Grade 22 Class1 ASTM A387 Grade 22 Class2
ASTM A515/A515M ASTM A515 Grade 60 ASTM A515 Grade 65 ASTM A515 Grade 70  
ASTM A516/A516M ASTM A516 Grade 55 ASTM A516 Grade 60 ASTM A516 Grade 65 ASTM A516 Grade 70
ASTM A517/A517M ASTM A517 Grade A ASTM A517 Grade B ASTM A517 Grade E ASTM A517 Grade F
ASTM A517 Grade P ASTM A517 Grade J    
ASTM A533/A533M ASTM A533 Grade A Class1 ASTM A533 Grade B Class1 ASTM A533 Grade C Class1 ASTM A533 Grade D Class1
ASTM A533 Grade A Class2 ASTM A533 Grade B Class2 ASTM A533 Grade C Class2 ASTM A533 Grade D Class2
ASTM A533 Grade A Class3 ASTM A533 Grade B Class3 ASTM A533 Grade C Class3 ASTM A533 Grade D Class3
ASTM A537/A537M ASTM A537 Class1 ASTM A537 Class2 ASTM A537 Class3  
ASTM A612/A612M ASTM A612      
ASTM A662/A662M ASTM A662 Grade A ASTM A662 Grade B ASTM A662 Grade C  
EN EN10028-2 EN10028-2 P235GH EN10028-2 P265GH EN10028-2 P295GH EN10028-2 P355GH
EN10028-2 16MO3      
EN10028-3 EN10028-3 P275N EN10028-3 P275NH EN10028-3 P275NL1 EN10028-3 P275NL2
EN10028-3 P355N EN10028-3 P355NH EN10028-3 P355NL1 EN10028-3 P355NL2
EN10028-3 P460N EN10028-3 P460NH EN10028-3 P460NL1 EN10028-3 P460NL2
EN10028-5 EN10028-5 P355M EN10028-5 P355ML1 EN10028-5 P355ML2 EN10028-5 P420M
EN10028-5 P420ML1 EN10028-5 P420ML2 EN10028-5 P460M EN10028-5 P460ML1
EN10028-5 P460ML2      
EN10028-6 EN10028-6 P355Q EN10028-6 P460Q EN10028-6 P500Q EN10028-6 P690Q
EN10028-6 P355QH EN10028-6 P460QH EN10028-6 P500QH EN10028-6 P690QH
EN10028-6 P355QL1 EN10028-6 P460QL1 EN10028-6 P500QL1 EN10028-6 P690QL1
EN10028-6 P355QL2 EN10028-6 P460QL2 EN10028-6 P500QL2 EN10028-6 P690QL2
JIS JIS G3115 JIS G3115 SPV235 JIS G3115 SPV315 JIS G3115 SPV355 JIS G3115 SPV410
JIS G3115 SPV450 JIS G3115 SPV490    
JIS G3103 JIS G3103 SB410 JIS G3103 SB450 JIS G3103 SB480 JIS G3103 SB450M
JIS G3103 SB480M      
GB GB713 GB713 Q245R GB713 Q345R GB713 Q370R GB713 12Cr1MoVR
GB713 12Cr2Mo1R GB713 13MnNiMoR GB713 14Cr1MoR GB713 15CrMoR
GB713 18MnMoNbR      
GB3531 GB3531 09MnNiDR GB3531 15MnNiDR GB3531 16MnDR  
DIN DIN 17155 DIN 17155 HI DIN 17155 HII DIN 17155 10CrMo910 DIN 17155 13CrMo44
DIN 17155 15Mo3 DIN 17155 17Mn4 DIN 17155 19Mn6