| Customization: | Available |
|---|---|
| Type: | Steel Plate |
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
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S31603 clad plate features a 304L + 316L duplex structure with explosion-bonded interface integrity. Designed for polymerization reactors handling glacial acetic acid (>99%) at 120-250°C, it delivers unmatched corrosion resistance while reducing material costs by 40% versus solid alloy construction. Compliant with ASME Section VIII Division 1 for pressure vessel applications.
| System | Certification |
|---|---|
| Material | ASTM A263 Gr.2 EN 10088-2 JIS G3601 |
| Fabrication | ASME Section VIII Div.1 PED 2014/68/EU |
| Corrosion | NACE MR0175/ISO 15156 (Sulfide Stress Corrosion) |
| Quality | ISO 3834-2 (Welding) NORSOK M650 |
| Parameter | Base Layer (304L) | Clad Layer (316L) |
|---|---|---|
| Thickness Range | 20-150 mm | 3-12 mm (±0.5 mm) |
| Yield Strength (min) | 170 MPa | 205 MPa |
| Tensile Strength | 485 MPa | 515 MPa |
| Carbon Content | ≤0.030% | ≤0.030% |
| Mo Content | - | 2.0-2.5% |
| Interlayer Shear Strength | ≥210 MPa (ASTM A264) | |
| Plate Dimensions | Width: 1,500-4,500 mm; Length: 6-20 m |
Glacial Acetic (100%, 200°C): Corrosion rate <0.01 mm/year (vs. 0.15 mm for carbon steel)
Acetic Anhydride Mixtures: Withstands 5% bromides contamination at 150°C
Interface Bonding: 100% UT inspection per ASTM A578 Level B
Thermal Cycling: Zero delamination after 500 cycles (150°C RT)
Weldability: Special transition welding procedure (E309LMo filler)
Post-Weld Heat Treatment: Exempt per ASME Section VIII UW-2(d)
| Environment | Temp | Corrosion Rate (mm/year) |
|---|---|---|
| 99.7% Glacial Acetic Acid | 120°C | 0.008 |
| Acetic Acid + 5% Formic Acid | 180°C | 0.012 |
| Acetic Anhydride + 10% H2O | 90°C | 0.005 |
| Reactor Cleaning Solution (HNO3/HF) | 60°C | <0.1 (Passivation layer) |
| Parameter | Value |
|---|---|
| Vessel Type | Continuous Stirred-Tank Reactor (CSTR) |
| Design Conditions | 230°C 4.5 MPa, 99.5% HAc |
| Clad Configuration | Base: 304L (80mm) + Clad: 316L (8mm) |
| Service History | 8 years operation with <0.05 mm thinning |
| Zero chloride stress corrosion cracking | |
| 30% cost savings vs. solid 316L |
Explosive Bonding: Detonation velocity 2,500 m/s (90° collision angle)
Hot Rolling: 1,150°C reduction to final thickness
Solution Annealing: 1,050°C × 1hr/25mm + water quench
NDT Inspection: UT + RT + PMI (Positive Material Identification)
Material Savings: 1 ton clad plate replaces 3.2 tons solid 316L
Carbon Footprint: 2.8 tCO2/t (vs. 8.5 tCO2/t for solid alloy)
Lifecycle Cost: $120,000 savings per reactor over 15-year service
Extreme Purity: Low delta-ferrite (<3%) prevents product contamination
Cost Efficiency: $18/kg effective cost (vs. $42/kg for solid 316L)
Maintenance Reduction: Eliminates reactor lining replacement downtime
Thermal Stability: CTE matching prevents thermal fatigue
WPS Development: Transition welding procedures for clad-to-clad joints
Corrosion Modeling: COMSOL multiphysics for acid concentration gradients
Failure Analysis: On-site metallography for corrosion mapping
Contact our Clad Plate Engineering Team for:
1 Corrosion test reports 2 ASME U-stamp documentation 3 Reactor design consultation
S31603 Clad Plate: Where corrosion science meets capital efficiency.
Extended Applications:
Vinyl acetate monomer reactors
Purified terephthalic acid (PTA) crystallizers
Cellulose acetate production vessels
*Note: Request our NACE Paper C2023-18976 for full acetic acid corrosion test data*
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