A537CL1+904L clad steel plate is a high-performance composite material formed by bonding A537 Class 1 (a quenched and tempered carbon-manganese steel for pressure vessels) with 904L (a super austenitic stainless steel with excellent corrosion resistance) via explosive welding (preferred for large thicknesses) or hot-rolling (suitable for thin gauges). This combination integrates the superior mechanical properties of the base layer (A537CL1) and the exceptional corrosion resistance of the cladding layer (904L), making it ideal for harsh industrial environments requiring both structural integrity and resistance to aggressive media.
A537CL1+904L Clad steel plate Chemical Composition and Mechanical Property
| A537CL1 Chemical Composition | ||||||||
|---|---|---|---|---|---|---|---|---|
|
C |
Mn 1) |
P 2) |
S 2) |
Si |
Cu |
Ni 1) |
Cr |
Mo |
|
0.24 |
1.60 |
0.020 |
0.010 |
0.50 |
0.35 |
0.25 |
0.25 |
0.080 |
| A537CL1 Mechanical Property | ||||
|---|---|---|---|---|
|
Grade |
Yield strength |
Tensile strength |
Elongation in 2" |
Elongation in 8" |
|
A537 Class 1 |
50 |
70 - 90 |
22 |
18 |
| Grade |
C
|
Mn |
P
|
S
|
Si |
Cr |
Ni | Mo | Ni |
Cooper
|
| 904L(N08804) | 0.020 | 2.00 | 0.045 | 0.035 | 1.00 | 19.0-23.0 | 23.0-28.0 | 4.00-5.00 | 0.10 | 1.00-2.00 |
| 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) |
|||||||||||
| 904L(N08804) |
|
|
35 |
|
not required | ||||||
A537CL1+904L Clad steel plate Other Name
A537CL1+904L Clad steel plate, A537CL1 steel plate, 904L steel plate
Welding Requirements of A537CL1+904L Composite steel plate
- Base Layer Welding: Uses low-alloy steel electrodes matching A537CL1's strength, such as E8018-B2 (for moderate temperature service) or E9018-B3 (for higher strength), with preheating (150-200℃) and post-weld heat treatment (PWHT) to relieve residual stress.
- Cladding Layer Welding: Requires high-alloy fillers compatible with 904L, e.g., ER385 (GTAW) or E385-16 (SMAW), to maintain corrosion resistance. Strictly controls interpass temperature (≤150℃) to prevent carbide precipitation and preserve the cladding's anti-corrosion properties.
- Transition Zone: Ensures fusion between layers without carbon migration, often using a duplex or nickel-based buffer layer (e.g., ERNiCrMo-3) for compatibility.
Applications
A537CL1+904L bimetallic steel plate is engineered for extreme environments where both pressure resistance and aggressive corrosion protection are critical, including:
Chemical & Petrochemical Industry: Pressure vessels, reactors, and storage tanks for sulfuric acid (concentrations 50-90%), phosphoric acid, and organic acids; pipeline systems for transporting corrosive slurries.
Wet Metallurgy: Equipment for leaching tanks, electrolyte storage, and acid recovery systems in copper, nickel, or zinc processing, where chloride and acid concentrations are high.
Offshore & Marine Engineering: High-pressure pipelines, separators, and storage units in offshore oil/gas platforms, resisting seawater, sour gas (H₂S), and brine corrosion.
Pharmaceutical & Food Processing: Vessels for high-purity chemical synthesis or sterilization, where 904L's low metal ion leaching and resistance to cleaning agents (e.g., nitric acid) ensure product purity.
Adaptable to low-temperature pressure vessels (e.g., liquid nitrogen/oxygen storage tanks), supplying A537CL1+304L Clad steel or P265GH+304L Clad steel conforming to GB/T 3531. If you need to confirm impact energy at -196℃, low-temperature toughness indicators, or customize special thickness combinations, send an inquiry for technical support in low-temperature system integration.
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