ASTM A285 Grade C|A285 Gr.C|A285GrC STEEL PLATE

ASTM A285 Grade C Pressure Vessel Plate supplier

In the critical sector of pressure vessel and boiler manufacturing, selecting reliable low-to-medium strength materials is essential for safe, cost-effective designs in industries like petrochemicals, oil refining, and power generation.

At Gangsteel, we are a leading producer and exporter of high-quality carbon steel plates, including the widely used ASTM A285 Grade C (A285 Gr C), a low-carbon steel under the ASTM A285/A285M steel plate standard.

This grade is designed for fusion-welded vessels operating at ambient to moderate temperatures, offering good weldability and moderate tensile strength.

Gangsteel ensures our plates comply with ASTM specifications for global delivery.

If comparing, explore our ASTM A 285 Grade A for lower strength or ASTM A 285 Grade B for intermediate needs.

What is ASTM A285 Grade C Pressure Vessel Plate?

ASTM A285 Grade C pressure vessel plate is a carbon steel specification for low- and intermediate-tensile strength plates used in fusion-welded boilers and pressure vessels.

It is supplied in as-rolled condition, with options for normalization or stress relieving to enhance properties.

Known for its affordability and ease of fabrication, A285 Grade C is ideal for services where high strength isn't required but good ductility and impact resistance are.

The standard limits carbon to maintain weldability, making it suitable for vessels handling non-corrosive fluids at pressures up to 10 bar and temperatures up to 450°C.

At Gangsteel, we manufacture ASTM A 285 Grade C plates for applications like storage tanks, heat exchangers, and low-pressure boilers, ensuring compliance with ASME Section VIII for Indian and global markets.

Compared to higher grades, it offers cost savings in non-critical setups, with astm a 285 grade equivalent material often including EN P235GH for similar uses.

Chemical Composition of ASTM A285 Grade C

The chemical makeup of ASTM A285 Grade C emphasizes low carbon for excellent weldability and controlled manganese for strength without brittleness.

In astm a285 grade c boiler steel chemical composition details, phosphorus and sulfur are minimized to reduce embrittlement risks during fabrication.

No alloying elements are required, keeping costs low while maintaining performance in low-pressure environments.

Composition table (heat analysis):

This simple formulation, with no silicon or other deoxidants specified, supports easy production and aligns with equivalents like ASTM A 285 Grade equivalent material in P235GH, which has similar low-carbon limits.

Mechanical Properties of ASTM A285 Grade C

ASTM A285 Grade C offers moderate mechanical properties suitable for low-pressure vessels, with good elongation for forming.

Per a 285 gr c mechanical properties and density guide, it provides reliable tensile strength for ambient services.

Properties table:

No impact testing is required, but Gangsteel offers optional Charpy for low-temperature uses. Density is 7.85 g/cm³, standard for carbon steels.

Density and Delivery Condition

As per a 285 gr c mechanical properties and density guide, density is 7.85 g/cm³ (7850 kg/m³), facilitating accurate weight calculations for vessel design.

Plates are delivered in as-rolled condition, with options for normalization or stress relieving to relieve internal stresses post-welding.

Gangsteel ensures plates are ready for immediate fabrication, with ultrasonic testing available for defect-free quality.

Available Specifications and Models

Gangsteel supplies ASTM A285 Grade C in thicknesses from 6mm to 50mm (standard for this grade, as it's limited to lower thicknesses due to strength), widths up to 3500mm, and lengths to 18000mm.

Compliant with ASTM A285/A285M, we offer custom cuts and beveling.

For thinner applications, compare with ASTM A 285 Grade A or B for varying strengths.

Pricing Insights for ASTM A285 Grade C

As of September 29, 2025, current pricing for astm a285 grade c pressure vessel plates ranges $500-1,200 per metric ton globally, with Indian prices at ₹70-120 per kg ($0.85-1.45/kg) due to local production.

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

In India, Mumbai stockists quote ₹80-100 per kg for ex-stock, with imported HIC-tested at ₹110-120 per kg plus 18% GST.

Gangsteel offers FOB quotes from $550/ton, landed in India ~₹80-100 per kg after duties.

Equivalent Materials for ASTM A285 Grade C

Equivalents allow cost-effective sourcing.

Key matches include 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 1548-460R (Australia).

These share low-carbon properties for similar low-pressure uses, per astm a 285 grade equivalent material.

Table:

Applications and Advantages in Pressure Vessel Systems

A285 Grade C is used in low-pressure tanks, boilers, and heat exchangers, offering easy forming and welding without preheating.

In India, it's popular for refinery vessels due to affordability.

Advantages include cost savings over alloy steels and good corrosion resistance in mild environments.

Frequently Asked Questions (FAQs) About ASTM A285 Grade C Pressure Vessel Plate

What is ASTM A285 Grade C material?

ASTM A285 Grade C is a low-carbon steel plate for low- and intermediate-pressure vessels, with tensile 55-75 ksi and yield 30 ksi min. It's as-rolled or normalized for good ductility and weldability in ambient services.

What is the difference between A285 Grade C and Grade A?

Grade C has higher tensile (55-75 ksi) and yield (30 ksi) than Grade A (45-65 ksi tensile, 24 ksi yield), suiting intermediate pressures. Both are low-carbon for welding, but Grade C offers better strength.

What applications suit A285 Grade C plates?

A285 Grade C is ideal for low-pressure boilers, storage tanks, and heat exchangers in petrochemicals and power, handling non-corrosive fluids at moderate temps.

Is A285 Grade C equivalent to SA285 Grade C?

Yes, ASTM A285 Grade C is equivalent to ASME SA285 Grade C, with identical composition (carbon 0.24% max) and properties for ASME code use.

What thickness ranges for A285 Grade C plates?

Typically 6-50mm, as it's for low-pressure; Gangsteel offers widths to 3500mm and lengths to 18000mm with custom cuts.

Does A285 Grade C require impact testing?

No standard requirement, but optional Charpy for low-temp; suitable for ambient services without it.

Can A285 Grade C be used in sour service?

Not recommended without testing, as it's low-strength carbon steel; for sour, consider HIC-tested variants or higher grades like A516.

In summary, ASTM A285 Grade C from Gangsteel is a cost-effective choice for low-pressure vessels, with reliable supply and customization. Contact us for quotes on ASTM A 285 Grade C.

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