BS4360 43EE|43EE STEEL|43EE STEEL PLATE

BS4360 43EE | 43EE Steel | 43EE Steel Plate Manufacturer & Exporter – Gangsteel

Gangsteel is a leading manufacturer, stockist, and global exporter of BS4360 43EE structural steel plates, also known as 43EE steel plate. This grade belongs to the legacy British Standard BS4360 (now largely superseded by EN 10025-3 but still widely specified and used in many international projects, especially in oil & gas, offshore, shipbuilding, and heavy fabrication sectors).

43EE is a fine-grain, normalized or normalized rolled weldable structural steel with guaranteed impact toughness at -50°C (Charpy V-notch minimum 27 J), making it suitable for low-temperature applications where good weldability, high strength, and excellent notch toughness are required.

Gangsteel keeps large stock of BS4360 43EE steel plates in thicknesses 6 mm – 200 mm, widths 1500–4020 mm, and lengths up to 18000 mm. We offer cutting (plasma, laser, oxy-fuel), beveling, shot blasting + primer, third-party inspection (SGS, BV, TUV, LR, ABS, DNV, GL), and full EN 10204 3.1 / 3.2 certification.

Chemical Composition of BS4360 43EE (Ladle Analysis, max %)

Carbon Equivalent (CEV)is usually kept well below 0.43 to ensure excellent weldability without preheating in most thicknesses.

Mechanical Properties – BS4360 43EE

Room Temperature Tensile Properties (Transverse)

Impact Test – Charpy V-notch (Longitudinal)

Note: Impact tests are mandatory for 43EE. Gangsteel performs full impact testing on each heat and plate thickness range.

Delivery Condition

• +N– Normalized or normalized rolled
• +AR– As-rolled (available on request)
• Ultrasonic examination (EN 10160 Class S0/S1 or ASTM A578 Level A/B/C)
• Shot blasting SA 2.5 + shop primer (optional)
• Low hydrogen welding consumables recommended

Equivalent Grades Table

Key Insight: BS4360 43EE is today most commonly replaced by EN 10025-3 S355NL (or S355ML for TMCP), which has identical or better toughness requirements.

Typical Applications of BS4360 43EE Steel Plate

• Offshore platforms & wind tower foundations
• Shipbuilding (hull structural parts in cold regions)
• Low-temperature pressure vessels & storage tanks
• Bridges & crane booms in cold climates
• Mining equipment & heavy machinery frames
• Arctic-grade construction & infrastructure
• Oil & gas pipelines and process modules

Advantages of Choosing BS4360 43EE from Gangsteel

• Guaranteed -50°C impact toughness (27 J average)
• Excellent weldability (low CEV)
• Wide plate dimensions (up to 4200 mm width)
• Full traceability & 3.1/3.2 certification
• Large stock availability & fast delivery
• Competitive pricing for project quantities
• In-house cutting, beveling, rolling & shot-blasting

Quality Assurance & Testing at Gangsteel

• Chemical analysis (ladle & product)
• Tensile & bend tests
• Charpy V-notch impact tests at -50°C
• Ultrasonic examination (EN 10160 / ASTM A578)
• Surface inspection & dimensional control
• Optional: HIC / SSC, through-thickness Z35, simulated PWHT

FAQ – BS4360 43EE Steel Plate

Q1: Is BS4360 43EE still a valid specification?

A: Yes, many legacy projects, offshore specifications, and client drawings still call for BS4360 43EE. However, the current European replacement is EN 10025-3 S355NL (same -50°C impact requirement).

Q2: What is the difference between 43E and 43EE?

A: 43E has impact test at -40°C, while 43EE is tested at -50°C (more severe low-temperature toughness).

Q3: Can 43EE be used for offshore structures?

A: Yes, it meets many older offshore specifications (similar to API 2H Gr.50 or EN S355NL). For new projects, check if EN 10025-3 S355NL or API 2W Gr.50 is now required.

Q4: Does Gangsteel stock BS4360 43EE plates?

A: Yes — common thicknesses 8 mm, 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm are usually available ex-stock. Wider and thicker plates can be rolled to order (up to 4200 mm × 500 mm).

Q5: What welding precautions are needed for 43EE?

A: Low-hydrogen electrodes, preheat depending on thickness (usually 50–100°C for >40 mm), and interpass temperature control. CEV is low, so most thicknesses can be welded without preheating.

Q6: Can you supply BS4360 43EE with 3.2 certification?

A: Yes — we regularly supply with third-party certification from Lloyd’s Register, DNV, ABS, BV, SGS, TUV, etc.

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Contact Gangsteel today for current stock list, ex-mill prices, cutting schedule, or custom rolling of BS4360 43EE steel plates. We support urgent offshore, shipbuilding, and low-temperature projects worldwide.