API 2H Offshore Steel Plate

Leeco® Steel stocks and supplies API 2H steel plate, which is certified for use in offshore structures.

 Overview:

  • Offering intermediate strength in relation to other structural steel grades, API 2H steel is typically used in welded construction for offshore structures.
  • Available in Grade 50 and 42.
  • Exhibits high impact toughness and resistance to fatigue loading.
  • Mill test reports will be provided to confirm composition and material properties.
  • Charpy test requirements for specific zones and climates may be requested.
  • Certified by the American Petroleum Institute (API) and in some cases dual certified by the American Bureau of Shipping (ABS).
  • May be certified to meet multiple specifications on Mill Test Report, typically for ASTM A633, ABS EH/DH36 and ASTM A537.

 

Available Sizes

Leeco Steel stocks the following standard sizes, but other sizes may be available for special orders.

  THICKNESS WIDTH LENGTH
Grade 42 1/4" – 4" 48" – 120" Up to 480"
Grade 50 1/4" – 4" 48" – 120" Up to 480"

Minimum order weight in the USA is 20 tons. For orders weighing less than 20 tons, additional freight surcharges may be applied. Minimum order weight for orders outside of North America is 500 MT.

Material Properties

The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.

Grade Yield Point (ksi) Tensile Strength (ksi) Min. 8” Elongation %
Grade 42 42 62-82 18
Grade 50 - ≤2.5" thick 50 70-90 16
Grade 50 - >2.5" thick 47 70-90 16

 

Chemical Composition

The following composition properties are API specifications for the 2H grade.

Grade 42  
Carbon 0.18%
Manganese 0.90-1.35%
Phosphorus max 0.030%
Sulfur max 0.010%
Silicon 0.05-0.40%
Colombium 0.04% max
Titanium 0.020% max
Aluminum total 0.02-0.06%
Nitrogen max 0.012%

 

Grade 50  
Carbon 0.18%
Manganese 1.15-1.60%
Phosphorus max 0.030%
Sulfur max 0.010%
Silicon 0.05-0.40%
Colombium 0.01-0.04%
Titanium 0.020% max
Aluminum total 0.02-0.06%
Nitrogen max 0.012%