FH32 Shipbuilding Steel Chemical Composition:
Grade
| C max | Si max | Mn | P max | S max | Als min | Ti max | Cu max | Cr max | Ni max | Mo max | N max |
FH32 | 0.16 | 0.50 | 0.90-1.60 | 0.025 | 0.025 | 0.015 | 0.02 | 0.35 | 0.20 | 0.80 | 0.08 | 0.009 |
Note: Generally speaking CE will be ≤0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.36% (thickness ≤ 50mm),≤0.38%( when the thickness >50-100). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Grade
| Rm (MPa) | Re(MPa) min | A% min | Akv/J min |
FH32 | 440-570 | 315 | 22 | E.T °C | Thickness (mm) |
-60 | ≤ 50 | >50-70 | >70-100 |
L | C | L | C | L | C |
31 | 22 | - | - | - | - |
A. Delivery Condition: As Rolled(AR), Controled Rolling(CR),Thermal Mechanical Control Process(TMCP),Normalizing(N),Tempering(T), Annealing(A), Quenching(Q), Quenching & Tempering(QT).
B. The Ultrasonic inspection can be done according to ASTM A435, ASTM A577, ASTM A578, EN10160, SEL072, NFA 04-305, BS5996 standard.
C. Additional Service: Heat treatment, Charpy V tes, Pre treatment,Cutting,Galvanization.
D. Classification Society like ABS , BV , DNV , GL, KR, LR, NK, RINA.