Heavy-Duty Heat Exchanger Selection Guide

Material Selection

304 Stainless Steel — Standard grade for most applications. Good corrosion resistance. Cost-effective.

316L Stainless Steel — Superior corrosion resistance. Better for high-chloride environments. Recommended for coastal fleets.

Quality Certifications to Look For

• ISO 9001:2015 manufacturing certification
• 100% pressure testing before shipment
• Material traceability documentation
• IATF 16949 automotive quality standard

Supplier Evaluation Checklist

1. Manufacturing capability: In-house welding, testing, and quality control

2. Lead time: Stock availability vs. made-to-order

3. Warranty: Minimum 2 years for OEM-grade parts

4. Technical support: Application engineers available

5. Trade assurance: Alibaba Gold Supplier or equivalent

SUMEC Qualifications

• ISO 9001:2015 certified manufacturing facility
• 100% pressure-tested products
• 1,200+ OE numbers in catalog
• 2-year warranty on all products
• Alibaba Trade Assurance supplier