Engineering Reference & Metallurgical Standards

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Engineering Foundation

Kitchenware Materials & Metallurgical Standards

High-performance cookware manufacturing relies heavily on precise metallurgical selection. The balance of thermal conductivity, tensile strength, corrosion resistance, and non-toxic food safety compliance dictates the lifespan and cooking efficiency of the final product. At Prowa Kitchenware Industries, our engineering team adheres strictly to international material standards (ASTM, DIN, ISO, BS) to provide global OEM/ODM partners with consistent metal quality.

Lightweight • Superior Conductance • High Formability

Industrial Aluminum Alloy Grades

AL

AA 1050 / 1060

Commercially Pure Aluminum (≥99.5% Al)
  • Thermal Conductivity: Exceptional (225 W/m·K)
  • Deep Drawing: Maximum Ductility
  • Corrosion Defense: High Natural Oxide Layer
Optimal Applications: Rapid-heat impact bonded cookware bases, economy stockpots, and conductive disc components.
AL

AA 3003

Al-Mn Alloy (1.0–1.5% Manganese)
  • Strength: 20% Higher than 1000 Series
  • Non-Stick Bonding: Excellent Surface Adhesion
  • Warping Resistance: High Heat Tolerant
Optimal Applications: Heavy-duty stamped fry pans, commercial saucepans, caldero pots, and bakeware blanks.
AL

AA 5052

Al-Mg Alloy (2.2–2.8% Magnesium)
  • Corrosion Grade: Superior Marine/Acid Resistance
  • Fatigue Strength: Outstanding Under Thermal Stress
  • Structural Rigidity: Commercial Heavy-Gauge
Optimal Applications: Professional hospitality stockpots, high-stress pressure cooker bodies, and vessel lids.
AL

AA 6061

Al-Mg-Si Structural Alloy
  • Hard Anodizing: Optimal Anodized Oxide Growth
  • Yield Strength: Extreme Hardness (T6 Temper)
  • Machinability: High Precision CNC Lathe Capable
Optimal Applications: Hard-anodized premium cookware series, cast-feel riveted handles, and reinforced rims.
AL

A380 / ADC12

Die-Cast Aluminum (Silicon-Copper)
  • Casting Fluidity: Supports Complex Geometries
  • Thermal Retention: Thick Body Heat Holding
  • Dimensional Stability: Zero Thermal Deformation
Optimal Applications: Die-cast grill pans, multi-ply casserole pots with integrated side handles, and induction plates.
Corrosion Resistance • Hygiene • Premium Aesthetics

Stainless Steel Metallurgical Database

SS

AISI 304 (18/10)

Austenitic Stainless Steel (18% Cr / 10% Ni)
  • Corrosion Rating: Premium Food Acid Resistance
  • Finish: Mirror / Satin Polish Response
  • Magnetism: Non-Magnetic (Austenitic)
Optimal Applications: High-end kitchen pots, commercial chafing dishes, premium cutlery sets, and food contact rims.
SS

AISI 304 (18/8)

Standard Food Grade (18% Cr / 8% Ni)
  • Durability: High Impact & Scratch Resistant
  • Hygiene: Zero Metallic Migration (FDA Clean)
  • Cost Efficiency: Optimal Quality-Price Ratio
Optimal Applications: Commercial buffetware, strainers, mixing bowls, food service inserts, and serving tongs.
SS

AISI 430 (18/0)

Ferritic Stainless Steel (18% Cr / 0% Ni)
  • Induction Capability: Strongly Magnetic
  • Thermal Expansion: Low Risk of Delamination
  • Price Stability: Nickel-Free Cost Structure
Optimal Applications: Capsulated induction cookware bases, outer cladding of tri-ply pots, and budget cutlery.
SS

AISI 316

Mo-Enhanced Austenitic (16% Cr / 10% Ni / 2% Mo)
  • Pitting Resistance: Superior Salt & Acid Protection
  • Chemical Inertness: Extreme Commercial Grade
  • Longevity: Heavy Industrial Standard
Optimal Applications: Commercial food processing vats, specialized culinary pans, and high-salinity stock pots.
SS

AISI 410 / 420

Martensitic Cutlery Steel (High Carbon / Chromium)
  • HRC Hardness: Heat-Treatable to 52-56 HRC
  • Edge Retention: Precision Blade Sharpness
  • Tensile Strength: Exceptional Flexural Rigidity
Optimal Applications: Chef knife blades, carving tools, serrated steak knives, and high-wear kitchen shears.
Engineering Specifications

Comparative Technical Matrix

Metal Grade Material Category Thermal Conductivity Corrosion Resistance Induction Match Global Safety Standards
AA 1050 / 1060 Aluminum (Pure) 225 W/m·K Moderate No (Requires Disc) FDA / LFGB Pass
AA 3003 Aluminum Alloy 160 W/m·K High No (Requires Disc) REACH / RoHS
A380 / ADC12 Die-Cast Aluminum 96 W/m·K High (Coated) Yes (Sprayed/Impacted Base) EN 601 Compliant
AISI 304 (18/10) Austenitic Steel 16.2 W/m·K Exceptional No (Requires 430 Base) ISO 8442 / EU 1935
AISI 430 (18/0) Ferritic Steel 25.0 W/m·K Good Direct Induction ISO 15510
AISI 420 Martensitic Steel 24.9 W/m·K Moderate / High Yes (Magnetic) ISO 8442-1 Cutlery

Full Metallurgical Traceability & Quality Control

At Prowa Kitchenware Industries, material verification begins before production. Every raw coil, ingot, and sheet undergoes optical emission spectrometry (OES) analysis to verify chemical element percentages. Final products undergo rigorous salt-spray corrosion tests (ASTM B117), thermal shock trials, and heavy metal migration checks to guarantee strict adherence to global food contact regulations.

Spectrometric Verified ASTM B117 Tested ISO 9001:2015 FDA 21 CFR Compliant LFGB & EU 1935/2004

Need Customized Alloy Specifications for OEM Manufacturing?

Consult with Prowa's engineering team to select the perfect metal grade, gauge thickness, and surface coating for your brand's private label cookware line.

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