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 can be divided into different application ship steels according to it's tensile strength. Namely, ordinary/general strength shipbuilding steel, high strength shipbuilding steel and extra high strength shipbuilding steel. There are four quality grades of ordinary strength ship steel: Grade A, B, D, and E.
Standard: ASTM A131, GB 712-2011
Certification: ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA
Grades: A, B, D, and E.
Dimension: Thickness: 3-150mm; Width: 1000-4200mm; Length: 1000-18000mm
Application: general strength ships and ocean engineering structural steel
Chemical Composition (%)
| Grade | C max | Si max | Mn min | P max | S max | Als min |
|---|---|---|---|---|---|---|
| A | 0.21 | 0.50 | 0.50 | 0.035 | 0.035 | - |
| B | 0.21 | 0.35 | 0.80 | 0.035 | 0.035 | - |
| D | 0.21 | 0.35 | 0.60 | 0.035 | 0.035 | 0.015 |
| E | 0.18 | 0.35 | 0.70 | 0.035 | 0.035 | 0.015 |
Mechanical Properties:
| Grade | Rm (MPa) |
Re(MPa) min | A% min | Akv/J min | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| E.T °C | Thickness (mm) | |||||||||
| ≤ 50 | >50-70 | >70-100 | ||||||||
| L | C | L | C | L | C | |||||
| A | 400-520 | 235 | 22 | 20 | - | - | 34 | 24 | 41 | 27 |
| B | 400-520 | 235 | 22 | 0 | 27 | 20 | 34 | 24 | 41 | 27 |
| D | 400-520 | 235 | 22 | -20 | 27 | 20 | 34 | 24 | 41 | 27 |
| E | 400-520 | 235 | 22 | -40 | 27 | 20 | 34 | 24 | 41 | 27 |
| ASTM A131 | Classification Society Standard | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| ABS | BV | CCS | DNV | GL | KR | LR | NK | RINA | |
| A131 A | ABS A | BV A | CCS A | DNV A | GL A | KR A | LR A | NK A | RINA A |
| A131 B | ABS B | BV B | CCS B | DNV B | GL B | KR B | LR B | NK B | RINA B |
| A131 D | ABS D | BV D | CCS D | DNV D | GL D | KR D | LR D | NK D | RINA D |
| A131 E | ABS E | BV E | CCS E | DNV E | GL E | KR E | LR E | NK E | RINA E |
