A516Gr70+410 Clad steel plate Chemical Composition and Mechanical Property
|
Grade |
Chemical Composition(%) |
|||||
|
C |
Mn |
Si |
P max |
|||
|
|
0.27-0.31 |
0.79-1.3 |
0.13-0.45 |
0.035 |
||
|
Grade |
Mechanical Property |
|
||||
|
Tensile Strength(MPa) |
Yield Strength(MPa) min |
% Elongation in 2 in.(50mm) min |
Impacting Test Temperature(°C) |
|||
|
|
485-620 |
260 |
17 |
-20,40,-60 |
||
| Grade |
C
|
Mn |
P
|
S
|
Si |
Cr |
Ni | Mo | Ni |
Cooper
|
| 410(S41000) | 0.08-0.15 | 1.00 | 0.040 | 0.030 | 1.00 | 11.5-13.5 | 0.75 | - | - | - |
| Grade |
Yield strength (N/mm2), min |
Tensile strength (N/mm2), min |
Elongation in 2 in. (50mm), %, min |
|
Cold bend | ||||||
|
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel) |
|||||||||||
| 410(S41000) |
|
|
20 |
|
180 | ||||||
A516Gr70+410 Clad plate Application
A516Gr70+410 Clad steel plates are used in Construction of Bridges, Highway Construction and Other Engineering construction.
A516Gr70+410 Clad steel plate Other Name
A516Gr70+410 Clad steel plate, A516Gr70 steel plate, 410 steel plate
Welding of Clad Steel Plates
Welding Characteristics of Austenitic Clad Steel Plates
Austenitic clad steel plates refer to those with an austenitic steel cladding layer and a pearlitic steel base layer. The welding characteristics of such steels are as follows:
① There are significant differences between the base layer, cladding layer base metals, and welding materials, resulting in a strong dilution effect, which increases the tendency of solidification cracking.
② Martensite structure may form in the fusion zone, leading to increased hardness and brittleness.
③ The chromium content differs greatly between the base layer and the cladding layer, promoting carbon migration to the cladding layer and exacerbating the embrittlement of the fusion zone and the softening of the heat-affected zone on the other side.
Welding Characteristics of Ferritic-Martensitic Clad Steel Plates
Ferritic-martensitic clad steel plates refer to those with a ferritic-martensitic steel cladding layer and a pearlitic steel base layer. Their welding characteristics are similar to those of austenitic clad steel plates. Additionally, the incubation period for cold cracking in such clad steel plates is closely related to the type of filler material and welding process. Therefore, welding inspection cannot be performed immediately after welding.
Executive Standards and Parameters
Cladding Process: Explosive welding (most commonly used, suitable for large thickness) or hot-rolled cladding (suitable for thin specifications);
Standards: GB/T 24511 (China), ASME SA266 (USA), EN 10025 (EU);
Typical Thickness Combinations: Base layer 6–100mm + Cladding layer 2–8mm (total thickness 8–108mm);
Corrosion Resistance Tests: Salt spray test (no red rust after 1000 hours of neutral salt spray), intergranular corrosion test (compliant with ASTM A262 Method E);
Welding Requirements: Low-carbon steel welding materials (e.g., E7018) for the base layer, stainless steel welding materials (e.g., E410) for the cladding layer, and the interpass temperature must be controlled at ≤150℃.
Applicable to LNG storage/transportation systems in the energy sector, adopting clad steel plates such as P265GH+410 Clad steel (for low-temperature toughness) or A537CL1+304L Clad steel. If you want to verify -162℃ impact performance, vacuum insulation compatibility, or customize specifications for large LNG tanks, contact us to get technical parameters and quick quotes.
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