Category: ship and ocean engineering structural steel, marine steel, shipbuilding steel, hull steel
Delivery condition:As Rolled, Cold Rolled, Q&T, Normalized or TMCP
Z-direction test: Z15, Z25, Z35
Delivery time: Prompt(stock) or 10-40 working days(production)
Tel: 0086-21-61182423
E-Mail: [email protected]
Shipbuilding steel material in API standard is a kind of special material series. There are six steel grades : 2HGr42, 2HGr50, 2WGr50, 2WGr60, 2YGr50, 2YGr60. API 2H Grade 42 and API 2H Grade 50 is Normalized rolling way. API 2WGrarde 50 and 2WGrade 60 are TMCP rolling way. API 2YGrade 50 and 2YGrade 60 delivery condition are Q&T.
Standard: API Spec 2H-2006, API Spec 2W-2006, API Spec 2Y-2006
Grades: API 2HGr42, 2HGr50, 2WGr50, 2WGr60, 2YGr50, 2YGr60
Dimension: Thickness: 3-120mm; Width: 1000-4000mm; Length: 1000-18000mm
Application: can be used in welded construction of offshore structures
Chemical Composition (%)
| Grade | C max |
Si | Mn | P max |
S max |
Nb max |
Ti max |
Al | N max |
Ni max |
Cr max |
Mo max |
Cu max |
B max |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2HGr42 | 0.18 | 0.05-0.40 | 0.90-1.35 | 0.03 | 0.01 | 0.04 | 0.02 | 0.02-0.06 | 0.012 | |||||
| 2HGr50 | 0.18 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.04 | 0.02 | 0.02-0.06 | 0.012 | |||||
| 2WGr50 | 0.16 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.015 | 0.015-0.055 | 0.012 | 0.75 | 0.25 | 0.08 | 0.35 | 0.0005 | |
| 2WGr60 | 0.16 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.015 | 0.015-0.055 | 0.012 | 1.0 | 0.25 | 0.15 | 0.35 | 0.0005 | |
| 2YGr50 | 0.12 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.03 | 0.20 | 0.015-0.055 | 0.012 | 0.75 | 0.25 | 0.08 | 0.35 | 0.0005 |
| 2YGr60. | 0.12 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.03 | 0.20 | 0.015-0.055 | 0.012 | 1 | 0.25 | 0.15 | 0.35 | 0.0005 |
Mechanical Property and Delivery Condition
| Grade | Rm (MPa) | Re(MPa) min | Delivery condition |
|---|---|---|---|
| 2HGr42 | 427-565 | 289 | N |
| 2HGr50 | 483-620 | 345 | N |
| 2WGr50 | 400-520 | 235 | TMCP |
| 2WGr60 | 400-520 | 235 | TMCP |
| 2YGr50 | 448 min | 345-517 | Q & T |
| 2YGr60. | 517 min | 414-621 | Q & T |
