ASTM A285 Grade A|A285 Gr.A|A285GrA Vessel Steel Plate

ASTM A285 Grade A Pressure Vessel Plate for sales

In the vital sector of pressure vessel and boiler construction, opting for economical materials with dependable performance is key for low-pressure applications in industries such as oil refining, chemical storage, and general manufacturing.

At Gangsteel, we are a trusted producer and exporter of carbon steel plates, focusing on ASTM A285 Grade A (A285 Gr A), a low-carbon steel under the ASTM A285/A285M steel plate standard.

This grade is suited for fusion-welded vessels at ambient temperatures, providing good formability and basic tensile strength.

Gangsteel ensures our plates meet ASTM criteria for worldwide supply.

For comparisons, explore our ASTM A 285 Grade B for moderate strength or ASTM A 285 Grade C for higher requirements.

What is ASTM A285 Grade A Pressure Vessel Plate

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

It is typically supplied as-rolled, with optional normalization for improved uniformity.

Renowned for its low cost and ease of welding, A285 Grade A is ideal for services where basic strength is sufficient but good ductility is essential.

The standard restricts carbon to promote weldability, making it suitable for vessels handling non-aggressive media at pressures up to 6 bar and temperatures up to 350°C.

At Gangsteel, we manufacture ASTM A 285 Grade A plates for uses like storage tanks, low-pressure boilers, and simple heat exchangers, ensuring adherence to ASME Section VIII for various markets.

Compared to higher grades, it offers budget-friendly solutions in low-stress setups, with astm a 285 grade equivalent material often including EN P235GH for comparable applications.

Chemical Composition of ASTM A285 Grade A

The chemical makeup of ASTM A285 Grade A prioritizes very low carbon for outstanding weldability and minimal manganese for essential strength without added costs.

In astm a285 grade a boiler steel chemical composition details, phosphorus and sulfur are capped to prevent brittleness during use.

No alloy additions are mandated, maintaining simplicity and affordability in production.

Composition table (heat analysis):

This basic formulation, without silicon or deoxidants specified, corresponds to equivalents like ASTM A 285 Grade equivalent material in P235GH, which shares low-carbon traits for pressure equipment.

Mechanical Properties of ASTM A285 Grade A

ASTM A285 Grade A delivers low mechanical properties suited for basic pressure vessels, with excellent elongation for shaping.

Per a 285 gr a mechanical properties and density guide, it provides steady tensile for room-temperature services.

Properties table:

No required impact testing, but Gangsteel offers optional Charpy for assurance. Density is 7.85 g/cm³, typical for carbon steels.

Density and Delivery Condition

As indicated in a 285 gr a mechanical properties and density guide, density is 7.85 g/cm³ (7850 kg/m³), aiding accurate calculations for vessel weight.

Plates are delivered as-rolled, with Gangsteel providing normalization or stress relieving to reduce welding stresses.

We include ultrasonic testing for quality, ensuring plates are fabrication-ready.

Available Specifications and Models

Gangsteel supplies ASTM A285 Grade A in thicknesses from 6mm to 50mm (restricted for low-strength grade), widths up to 3500mm, and lengths to 18000mm.

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

For different strengths, compare with ASTM A 285 Grade B or C.

Pricing Insights for ASTM A285 Grade A

As of September 29, 2025, current pricing for astm a285 grade a pressure vessel plates ranges $450-900 per metric ton globally, with Indian prices at ₹65-100 per kg ($0.78-1.20/kg) due to domestic availability.

Standard 20-30mm plates average $500-700/ton in Asia, $800-900 in Europe/NA.

In India, Mumbai suppliers quote ₹75-90 per kg for ex-stock, with tested plates at ₹95-100 per kg plus 18% GST.

Gangsteel offers FOB quotes from $450/ton, landed in India ~₹65-85 per kg after duties.

Equivalent Materials for ASTM A285 Grade A

Equivalents enable budget-friendly 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 1548-430R (Australia).

These offer similar low-strength traits, per astm a 285 grade equivalent material.

Table:

Applications and Advantages in Pressure Vessel Systems

A285 Grade A is applied in low-pressure tanks, boilers, and exchangers, offering easy welding without preheating.

In India, it's popular for basic refinery vessels due to low cost.

Advantages include affordability over alloy steels and good ductility in mild conditions.

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

What is ASTM A285 Grade A material?

ASTM A285 Grade A is a low-carbon steel plate for low-pressure vessels, with tensile 45-65 ksi and yield 24 ksi min. It's as-rolled or normalized for ductility and weldability in ambient services.

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

Grade A has tensile 45-65 ksi and yield 24 ksi, while Grade B (50-70 ksi tensile, 27 ksi yield) suits slightly higher pressures. Both are low-carbon, but Grade A is for lower-strength needs.

What applications suit A285 Grade A plates?

A285 Grade A fits low-pressure boilers, storage tanks, and heat exchangers in chemicals and power, handling non-corrosive fluids at moderate temps.

Is A285 Grade A equivalent to SA285 Grade A?

Yes, ASTM A285 Grade A is equivalent to ASME SA285 Grade A, with identical composition (carbon 0.17% max) and properties for ASME code use.

What thickness ranges for A285 Grade A plates?

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

Does A285 Grade A require impact testing?

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

Can A285 Grade A be used in sour service?

Not recommended without testing, as it's basic carbon steel; for sour, choose HIC-tested or higher grades like A516.

In summary, ASTM A285 Grade A from Gangsteel is a budget-friendly option for low-pressure vessels, with consistent supply and customization. Contact us for quotes on ASTM A 285 Grade A.

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