Top Steel Plate Supplier, Distributor, Manufacturer

About Octal Metals

Octal Metals, established in 2007 in China, is a professional steel plate supplier, distributor, and manufacturer union specializing in carbon, alloy, and stainless steel plate products.

We are part of Octal Steel and are equipped with multi-base inventory and manufacturing facilities. We represent major Chinese steel producers including Anyang Iron, Puyang Iron, Wugang Iron, Xinsteel, Nanjing Iron, and Xiangtan Iron.

Our extensive stock of carbon, alloy, and stainless steel plates and coils enables us to deliver materials quickly and efficiently to customers worldwide.

24 hrs

Prompt Offer

48 hrs

Urgent Delivery

2007

Founded

Global

Reach

Our Steel Plate Products

We supply a comprehensive range of steel plates for structural, pressure vessel, shipbuilding, and industrial applications with strict quality control and global certifications.

ASTM A516 Grade 70

Medium- and low-temperature service pressure vessel plate with excellent notch toughness. Ideal for oil & gas storage tanks and reactors.

Standards: ASTM A516 / ASME SA516
Grades: 60, 65, 70
Thickness: 6mm to 200mm
Applications: Pressure vessels, boilers, heat exchangers

ASTM A572 Steel Plate

High-strength low-alloy structural steel plate offering improved strength over A36 and A283. Suitable for bridges, buildings, and heavy machinery.

Grades: 50, 60
Yield Strength: 50-60 ksi min
Standards: ASTM A572
Features: Weldable, formable, durable

ASTM/ASME A387

Chromium-Molybdenum alloy steel plate for high-temperature service in refineries and petrochemical plants. Excellent creep resistance.

Grades: 11, 22, 5, 9, 91
Class: Class 1 & 2
Standards: ASTM A387 / ASME SA387
Applications: Reactors, heat exchangers, boilers

304/304L Stainless Plate

Austenitic stainless steel with excellent corrosion resistance and formability. Widely used in food processing, chemical, and architectural applications.

Standard: ASTM A240
Type: 304, 304L (low carbon)
Forms: Plate, Sheet
Features: Non-magnetic, weldable, durable

316/316L Stainless Plate

Molybdenum-enhanced stainless steel offering superior corrosion resistance, especially against chlorides. Ideal for marine and chemical environments.

Standard: ASTM A240
Type: 316, 316L (low carbon)
Advantage: Resists pitting & crevice corrosion
Applications: Marine, pharmaceutical, coastal

ASTM A283 Grade C & D

Low and intermediate tensile strength carbon steel plate for general structural applications. Economical and widely available.

Grades: C, D
Yield Strength: 30-50 ksi
Standard: ASTM A283
Uses: Buildings, machinery, welded structures

Shipbuilding Steel Plate

High-strength steel plate for shipbuilding and offshore platforms. Meets ABS, DNV, GL, BV, and CCS classification standards.

Grades: A, B, AH32/36, DH32/36, EH32/36
Standards: ABS, DNV, CCS, etc.
Applications: Hulls, decks, offshore structures
Features: Toughness at low temperatures

ASTM A537 Class 1 & 2

Heat-treated carbon-manganese-silicon steel plate with higher strength than A516. Used in welded pressure vessels requiring notch toughness.

Classes: 1 and 2 (different heat treatment)
Standard: ASTM A537
Yield Strength: 60-70 ksi min
Applications: Storage tanks, reactors, boilers

Carbon Steel Plate

General-purpose structural steel plate available in multiple grades including A36, A283, A572, and A573. Ideal for construction and fabrication.

Grades: A36, A283, A572, A573
Thickness: 3mm to 300mm
Forms: Plate, Sheet, Coil
Features: Weldable, machinable, cost-effective

Corten / Weathering Steel

Atmospheric corrosion-resistant steel that forms a stable rust-like appearance. Eliminates need for painting in outdoor applications.

Standards: ASTM A242, ASTM A588
Types: Corten A, Corten B
Applications: Bridges, sculptures, facades
Advantage: Low maintenance, aesthetic finish

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Value-Added Services

We offer precision cutting services to meet your exact specifications, reducing fabrication time and material waste.

Laser Cutting

High-precision laser cutting for intricate shapes and tight tolerances. Ideal for stainless steel, carbon steel, and alloy plates up to 25mm thickness.

Accuracy: ±0.1mm
Max Thickness: 25mm
Materials: Carbon, Stainless, Alloy
Edge Quality: Smooth, burr-free

Plasma Cutting

Fast and cost-effective plasma cutting for thicker materials. Suitable for structural steel, shipbuilding plate, and pressure vessel applications.

Max Thickness: 50mm
High Speed & Efficiency
Ideal for Mild & Carbon Steel
Custom Shapes & Sizes

Why Choose Octal Metals?

As your responsible supply partner, we combine quality, speed, and reliability to support your projects worldwide.

Fast Delivery

Urgent material delivery within 48 hours. Large in-stock inventory near major Chinese ports.

24-Hour Quotes

Prompt offers delivered within 24 hours. Quick response to all inquiries and technical questions.

Large Stock

Extensive inventory of carbon, alloy, and stainless steel plates and coils from major mills.

Customization

Custom dimensions, cutting, and packaging to meet your exact project requirements.

Frequently Asked Questions

What steel plate standards do you supply?

We supply a wide range of standards including ASTM A36, A283, A516, A537, A572, A387, ASME SA387, API 5L, and shipbuilding grades AH36/DH36/EH36. Stainless steel grades include 304/304L and 316/316L per ASTM A240.

Do you offer cutting services?

Yes, we provide both laser cutting (up to 25mm) and plasma cutting (up to 50mm) services to your required dimensions, reducing fabrication time and material waste.

What is your typical delivery time?

We offer urgent delivery within 48 hours for in-stock items. Standard delivery times vary by destination but typically range from 10-30 days for sea freight.

Can you supply small quantities?

Yes, we support low-quantity orders and aim to be your one-stop purchase center for steel plates, even for small or urgent requirements.

Which ports do you ship from?

We primarily ship from major Chinese ports including Tianjin, Qingdao, Shanghai, and Ningbo, with large stock availability near loading ports for fast turnaround.

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