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"

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%