| Strength Portfolio | Availability of dual-phase, complex-phase, martensitic, transformation-induced plasticity, and press-hardening grades. | Applicable national or international material specifications; supplier datasheets; mill test certificates. | At least three AHSS families and documented mechanical-property ranges for each relevant grade. | 15% |
| Mechanical Properties | Yield strength, tensile strength, elongation, bend performance, and strain-hardening behavior. | Tensile testing under ISO 6892-1 or ASTM E8/E8M; bend testing under the applicable product standard. | Lot-specific results supplied with traceable test direction, specimen orientation, and test temperature. | 15% |
| Formability and Ductility | Total elongation, hole-expansion performance, forming-limit data, edge quality, and crack sensitivity. | ISO 16630 hole-expansion test; forming-limit diagrams; application-specific stamping trials. | Validated forming data for the buyer's part geometry, not only nominal tensile-strength claims. | 12% |
| Dimensional Capability | Thickness, width, flatness, camber, surface condition, and dimensional consistency. | Contractual tolerances; applicable ASTM, EN, JIS, or customer-specific specifications. | Published tolerances with inspection records and a documented process for nonconforming material. | 10% |
| Coating and Corrosion Protection | Hot-dip galvanized, galvannealed, electrogalvanized, or uncoated options; coating mass and adhesion. | ISO 1461 or applicable coated-steel standards; coating-mass and adhesion tests. | Coating designation, measured coating mass, surface-quality class, and corrosion-test evidence where required. | 10% |
| Welding and Joining Support | Resistance spot-welding envelope, heat-affected-zone behavior, laser-welding guidance, and joining recommendations. | Customer welding specifications; ISO 18595 for resistance spot welding; destructive and nondestructive inspection. | Application-specific joining parameters and technical support during prototype validation. | 10% |
| Quality Management | Certification scope, laboratory competence, traceability, corrective action, and change control. | ISO 9001; IATF 16949 where automotive supply is involved; ISO/IEC 17025 for testing laboratories. | Current certificates, auditable lot traceability, formal 8D corrective action, and advance change notification. | 12% |
| Supply Reliability | Production capacity, lead time, minimum order quantity, safety stock, logistics, and contingency planning. | Signed supply agreement; delivery-performance records; business-continuity documentation. | Documented capacity allocation, agreed lead-time targets, and a qualified backup route for critical materials. | 10% |
| Sustainability and Carbon Data | Recycled-content information, energy sources, greenhouse-gas intensity, environmental management, and product declarations. | ISO 14001; ISO 14067; product carbon-footprint methodology; third-party verification where available. | Site-specific, product-level data with system boundaries, calculation method, reporting period, and verification status. | 8% |
| Technical and Commercial Support | Simulation data, forming assistance, prototype support, quotation transparency, and responsiveness. | Technical data packages; non-disclosure agreement; agreed engineering-response and sample-delivery targets. | Named technical contact, complete datasheets, trial material, and measurable response commitments. | 8% |