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A36 Carbon Steel Plate — Factory Direct Supplier | Huaxia-Steel

ASTM A36 carbon steel plate is the most widely used structural steel plate in North America and one of the most exported carbon steel products globally. With a minimum yield strength of 250 MPa (36 ksi) and excellent weldability, A36 plate is the go-to material for construction, machinery, bridges, and general fabrication. Huaxia-Steel supplies A36 plate in thicknesses from 3mm to 300mm, with full mill certification and global shipping.

Product Overview

ASTM A36 (ASTM A36/A36M) is a carbon structural steel with carbon content typically 0.25-0.29%. It is produced as hot-rolled plate and is known for its low cost, reliable strength, and universal acceptance in structural applications. A36 is not a high-strength grade (compared to A572 or A516), but its versatility and availability make it the volume leader in the structural steel market.

A36 carbon steel plate - image 1

Specification Value Standard ASTM A36/A36M Product type Hot-rolled carbon steel plate Yield strength, min 250 MPa (36 ksi) Tensile strength 400-550 MPa (58-80 ksi) Elongation, min 20% (in 200mm) / 23% (in 50mm) Thickness range 3mm – 300mm Width range 1000mm – 3000mm Length range 3000mm – 12000mm Surface finish Hot-rolled (natural mill finish) Certification EN 10204 3.1 MTC, Mill Test Report

Specification Table: Dimensions & Weight

Thickness (mm) Width (mm) Length (mm) Weight per Plate (kg) Tolerance (thickness)
3 1500 6000 212 ±0.20mm
5 1500 6000 353 ±0.25mm
8 1500 6000 565 ±0.30mm
10 2000 8000 1,256 ±0.35mm
12 2000 8000 1,507 ±0.40mm
16 2000 8000 2,010 ±0.45mm
20 2000 12000 3,768 ±0.50mm
25 2500 12000 5,888 ±0.55mm
50 2500 12000 11,775 ±0.80mm
100 2500 12000 23,550 ±1.50mm

Weight = thickness × width × length × 7.85 kg/m³ (steel density). Custom dimensions available upon request.

Available Grades

While ASTM A36 is the primary grade, we also supply equivalent and related grades for projects with different standard requirements:

A36 carbon steel plate - image 2

Standard Grade Yield (MPa) Equivalent to A36? ASTM A36 250 — EN 10025 S235JR 235 Approximately (S235 is ~6% lower yield) GB/T 700 Q235B 235 Yes (Chinese equivalent) JIS G3101 SS400 245 Yes (Japanese equivalent) AS/NZS 250 250 Yes (Australian equivalent)

Manufacturing Standards

Applications

Industry Typical Use Why A36?
Construction Building frames, base plates, brackets Cost-effective; sufficient strength for low-rise structures
Bridge engineering Deck plates, gusset plates Good weldability; widely specified in AASHTO
Machinery Machine frames, jig plates, guards Readily available in all thicknesses; easy to machine
Shipbuilding Non-critical structural components Abs grade available; moderate strength sufficient
Oil & gas Storage tank shells (atmospheric) API 650 accepts A36 for tank construction
Automotive Trailer frames, chassis brackets Low cost; good formability for brackets
Infrastructure Sign posts, guardrail bases Galvanizes well; abundant supply

Quality Assurance

Every A36 plate order from Huaxia-Steel includes:

A36 carbon steel plate - image 3

  • EN 10204 3.1 Mill Test Certificate with chemical composition and mechanical properties
  • Ultrasonic testing per ASTM A435/A858 (optional, for plates > 12mm)
  • Dimensional inspection — thickness, width, length, flatness per ASTM A6 tolerances
  • Surface inspection — no cracks, laps, seams, or injurious surface defects
  • Third-party inspection available (SGS, BV, TÜV, Intertek) on request
  • Heat traceability — every plate traceable to its heat number and production record
  • Packaging & Shipping

    Why Choose Huaxia-Steel for A36 Plate?

    Get a Quote: Contact Huaxia-Steel today for a competitive price on A36 carbon steel plate. Send your specification (thickness, width, length, quantity, destination port) and we will respond within 24 hours with a detailed quotation including freight options.

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