Q345r+S31603 Clad Plate Explosive Bonding 8: 1 Ratio for Chloride Resistance in Hydroreactor Shells

• Customization: Available
• Type: Steel Plate
• Standard: ASTM, AISI, GB, JIS, DIN, BS
• Model NO.: SSCLAD-KF250710
• Certification: ISO, RoHS, IBR
• Surface Treatment: Coated
• Technique: Cold Rolled
• Application: Mold & Dies, Ship Plate, Boiler Plate, Container Plate, Flange Plate
• Special Use: Cutting Tools, Measuring Tools, Cutters in Common Steel, High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
• Stock: Stock
• Transport Package: Standard Export Package
• Trademark: MESCO
• Origin: China(Mainland)
• Production Capacity: 10000tons/Year

Product Description

Q345R+S31603 Explosively Bonded Clad Plate (8:1 Ratio) - Superior Chloride Resistance for Hydroreactor Shells

Engineered for Extreme Chemical Environments

Our Q345R+S31603 Explosively Bonded Clad Plate is a high-integrity composite material specifically engineered for critical pressure vessels operating in chloride-rich environments, such as hydroreactors, hydrogenation reactors, and chemical processing vessels. By combining the structural strength of pressure vessel carbon steel with the corrosion resistance of duplex stainless steel through precision explosive bonding, this clad plate delivers unmatched performance, longevity, and cost-efficiency for demanding applications.

 

Core Technology: Explosive Bonding at 8:1 Ratio

1. Metallurgical Bonding Excellence

• Explosive Welding Process: Detonation-driven high-velocity impact creates a permanent, diffusion-free metallurgical bond between Q345R base layer and S31603 cladding.

• Wavy Bond Interface: Unique interfacial morphology enhances mechanical interlock and prevents crack propagation (ASTM A264/A264M compliant).

• Zero HAZ (Heat-Affected Zone): Cold process preserves base material properties without compromising corrosion resistance.

2. Optimized 8:1 Thickness Ratio

• Structural Integrity: Q345R base layer (≈88% thickness) provides:

  • High tensile strength (510-640 MPa) and impact toughness for pressure containment

  • Compliance with ASME Section VIII, EN 10028 standards for pressure vessels

• Corrosion Defense: S31603 cladding (≈12% thickness) delivers:

  • Critical pitting resistance (PREN ≥34) against chlorides, H2S, and acidic media

  • Stress corrosion cracking (SCC) immunity in chloride environments up to 60°C

  • Minimum 3mm clad thickness ensures long-term corrosion allowance

 

Critical Advantages for Hydroreactor Shells

Feature	Benefit for Chloride Service
Chloride Resistance	Prevents pitting/crevice corrosion in brine-contaminated process streams or cooling water
SCC Immunity	Eliminates catastrophic failure risk in H2-charged, high-stress reactor shell environments
Hydrogen Embrittlement Resistance	Maintains ductility in high-pressure H2 service (NACE MR0175/ISO 15156 compliant)
Thermal Fatigue Resistance	Withstands cyclic thermal stresses during reactor startups/shutdowns
Cost Efficiency	60-70% cost savings vs. solid S31603 while matching corrosion performance at critical surfaces

 

Technical Specifications

Parameter	Specification
Base Material	Q345R (GB/T 713 compliant)
Clad Material	S31603 (UNS S31603 / EN 1.4434)
Bonding Method	Explosive Welding (ASME SA-264, EN ISO 23277 certified)
Thickness Ratio	8:1 (Base:Clad) - e.g., 40mm base + 5mm clad = 45mm total
Bond Strength	Shear strength ≥ 210 MPa (exceeds base metal minimum)
Non-Destructive Testing	100% UT (bond integrity), PT/RT (clad quality) per ASME Section V
Dimensions	Thickness: 10-150mm (customizable) Width: ≤ 4,500mm Length: ≤ 18,000mm

 

Target Applications in Chemical Processing

• Hydroreactor/Hydrogenation Reactor Shells
  (Resists chloride-induced SCC in hydrocracking, desulfurization units)

• Chlor-Alkali Processing Vessels
  (Withstands wet chlorine, brine solutions)

• Offshore Gas Scrubbers
  (Defends against marine chloride aerosols)

• Acid Regeneration Towers
  (HCl/H2SO4 environments with chloride impurities)

• High-Pressure Feedwater Heaters
  (Prevents chloride corrosion in power/chemical plants)

 

Why Choose Explosively Bonded Clad Plates?

• Zero Weld Dilution Risk: Clad integrity preserved during shell rolling/welding vs. weld overlay

• Lifecycle Economy: 30+ years service life in chloride service vs. carbon steel's <10 years

• Fabrication Flexibility: Compatible with cold forming, welding (clad-side ER316L filler)

• Regulatory Compliance: Meets ASME BPVC Section II, VIII; PED 2014/68/EU; GB 150.4

• Failure Prevention: Eliminates unplanned shutdowns from chloride-induced corrosion

Expert Insight:
*The 8:1 ratio optimizes cost/performance for hydroreactors - providing sufficient S31603 thickness (typically ≥3mm) to withstand chloride penetration over decades, while Q345R delivers ASME-mandated pressure-bearing capacity. Explosive bonding ensures bond strength exceeds parent metal properties.*

 

Commitment to Quality

Our clad plates undergo:

• Triple-stage bond inspection (UT, shear testing, macro-etch)

• Clad surface PMI (Positive Material Identification)

• Third-party certification (TÜV, Lloyd's Register)

• Full traceability (MTC per EN 10204 3.1)

 

Replace corrosion headaches with engineered reliability. Specify Q345R+S31603 explosive bonded clad plates (8:1 ratio) for hydroreactor shells operating in chloride environments - where material failure is not an option.
Contact our materials engineering team for project-specific technical validation and quoting.

OUR TEAM

FAQ
1.Q: How long is your delivery time?
A: Within 7-15 days after receiving the deposit or L/C at sight. Longer lead time will be required for special designed products.
2.Q: Do you provide samples ? is it free or extra charged?
A:Surely, product sample is complimentary but the delivery fee will be covered by our customers.
3.Q:What's your payment terms?
A:Our Payment trems will be
(1) 100% T/T
(2) 30% in advance,others before shipment.
4. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
5.what can you buy from us?
Excellent quality steel at competitive prices