ASME SA285 Grade C Boiler & Pressure Vessel Steel Plates Exporter | Gangsteel

 

As a top maker in China, Gangsteel is good at making and sending SA285 Grade C carbon steel plates, a low-carbon steel under the ASME SA 285/SA 285M rule. This grade is for welded vessels that need medium strength and good weld. It is great for jobs in oil, gas, and chemicals where pressure is not too high.

 

At Gangsteel, we make sure our plates meet high rules for customers around the world. If you want to check others, see our ASME SA 285 Grade A for less strength or ASME SA 285 Grade B for middle strength.

 

ASME SA285 Grade C (SA285GR.C) Carbon Steel Plates

 

ASME SA285 Grade C is a carbon steel plate for low- and medium-strength pressure vessels and boilers. It is often used in easy designs where big strength is not needed.

As an ASTM ASME SA285 Grade C supplier, Gangsteel makes plates that are easy to weld and shape. They come as-rolled or normalized to fix stress.

This grade is the same as ASTM A 285 Grade C, with low carbon for good weld without extra heat. It works well for tanks holding non-bad fluids at pressures up to 10 bar and temperatures up to 450°C.

Gangsteel supplies ASME SA285 Gr C boiler steel for uses like storage tanks and low-pressure boilers. It is cheaper than strong steels, and astm a285 grade equivalent material like EN P235GH can be used for same jobs.

 

Chemical Composition of ASME SA285 Grade C

 

The chemical mix of ASME SA285 Grade C keeps carbon low for good weld and manganese for some strength.

In asme sa285 grade c boiler steel chemical composition details, there are no extra metals, which keeps price low. Phosphorus and sulfur are low to stop break during use.

Composition table (heat analysis):

Element

Composition (%)

Carbon (C)

0.24 max

Manganese (Mn)

0.90 max

Phosphorus (P)

0.035 max

Sulfur (S)

0.035 max

This simple mix matches equivalents like ASTM A285 Grade equivalent material in P235GH, which has similar low carbon for pressure vessels.

 

Mechanical Properties of ASME SA285 Grade C

 

ASME SA285 Grade C has medium strength properties good for low-pressure vessels. It has good stretch for shaping without crack.

Per sa285 gr c mechanical properties and density guide, it works well at room temperature.

Properties table:

Property

Value

Tensile Strength

55-75 ksi (380-515 MPa)

Yield Strength

30 ksi (205 MPa) min

Elongation (in 200mm)

23% min

Elongation (in 50mm)

27% min

No need for impact tests, but Gangsteel can add Charpy tests if asked. Density is 7.85 g/cm³, normal for carbon steel.

 

Density and Delivery Condition

 

From sa285 gr c mechanical properties and density guide, density is 7.85 g/cm³ (7850 kg/m³), helping with weight calculations for designs.

Plates come as-rolled, but Gangsteel can normalize or stress relieve them to make welding better.

We do ultrasonic tests to check for flaws, so plates are ready to use.

 

Available Specifications and Models

 

Gangsteel makes ASME SA285 Grade C in thicknesses from 6mm to 50mm, widths up to 3500mm, and lengths to 18000mm.

We follow ASTM A285/A285M, with custom cuts and edges.

For other grades, see ASTM A 285 Grade A or B.

 

Pricing Insights for ASME SA285 Grade C

 

As of October 03, 2025, current pricing for asme sa285 grade c pressure vessel plates is $550-1,200 per metric ton worldwide. In India, it is ₹75-110 per kg ($0.90-1.30/kg) because of local making.

Standard 20-30mm plates cost $600-800/ton in Asia, $900-1,200 in Europe or NA.

In India, Mumbai sellers ask ₹85-100 per kg for stock plates, with tested ones at ₹105-110 per kg plus 18% GST.

Gangsteel gives FOB prices from $550/ton, which land in India at ~₹75-95 per kg after taxes.

 

Equivalent Materials for ASME SA285 Grade C

 

You can find cheaper options with equivalents.

Key ones are EN 10028-2 P235GH (EU), DIN 17155 HI (Germany), JIS G3115 SPV235 (Japan), BS 1501 161-360A (UK), GB 713 Q245R (China), KS D 3560 SPV235 (Korea), AFNOR A37CP (France), IS 2041 R220 (India), AS 1548-430R (Australia).

They have similar medium strength, per astm a 285 grade equivalent material.

Table:

Standard/Country

Equivalent Grade

Key Features

EN (EU)

P235GH

Low carbon, yield 235 MPa

DIN (Germany)

HI

Boiler-grade, tensile 360-480 MPa

JIS (Japan)

SPV235

Weldable, for pressure boilers

BS (UK)

161-360A

Comparable strength

GB (China)

Q245R

Heat-resistant, low pressure

 

Applications and Advantages in Pressure Vessel Systems

 

SA285 Grade C is used in low- to medium-pressure tanks, boilers, and exchangers. It welds easily without heat.

In India, it is common for refinery tanks because of medium cost.

Good points are cheap price and easy to shape in normal conditions.

 

Frequently Asked Questions (FAQs) About ASME SA285 Grade C (SA285GR.C) Carbon Steel Plates

 

What is ASME SA285 Grade C material?

ASME SA285 Grade C is a low- to medium-carbon steel plate for pressure vessels, with tensile 55-75 ksi and yield 30 ksi min. It is as-rolled or normalized for good shape and weld in normal use.

What is the difference between SA285 Grade C and Grade B?

Grade C has tensile 55-75 ksi and yield 30 ksi, Grade B has 50-70 ksi tensile and 27 ksi yield for a bit less pressure. Both are low-carbon, but Grade C is for medium-strength jobs.

What applications suit SA285 Grade C plates?

SA285 Grade C works for medium-pressure boilers, storage tanks, and heat exchangers in chemicals and power. It holds non-bad fluids at normal temps.

Is SA285 Grade C equivalent to A285 Grade C?

Yes, ASME SA285 Grade C is the same as ASTM A285 Grade C, with same mix (carbon 0.24% max) and strength for ASME rules.

What thickness ranges for SA285 Grade C plates?

Usually 6-50mm, as it is medium-strength. Gangsteel has widths to 3500mm and lengths to 18000mm with custom cuts.

Does SA285 Grade C require impact testing?

No usual need, but can add Charpy tests for low-temp. Good for normal temps without it.

Can SA285 Grade C be used in sour service?

Not good without tests, as it is simple carbon steel. For sour, use HIC-tested or stronger like A516.

 

In summary, ASME SA285 Grade C (SA285GR.C) carbon steel plates from Gangsteel are a good choice for medium-pressure vessels. They are cheap and easy to use. Contact us for quotes on ASME SA 285 Grade C.

asme sa285 grade c boiler steel chemical composition details, sa 285 gr c mechanical properties and density guide, current pricing for asme sa285 grade c pressure vessel plates

 

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