T/UNP 642-2025 Active Group standards

T/UNP 642-2025 Technical Requirements for Steel Plates and Steel Strips Used in New Automotive Lightweight Materials

T/UNP 642-2025 New automotive lightweight materials: Steel sheet and steel strip technical requirements

Publish Date: 2025-04-30 Implement Date: 2025-04-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/UNP 642-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nSteel

Publish Date: 2025-04-30

Implement Date: 2025-04-30

Scope

Main technical content: This standard specifies the technical requirements for new automotive lightweight materials, steel plates and steel strips, and is applicable to their production and inspection. The grades include SAPH, QStE, MC, etc., which are used in automotive frames, beams, etc. The appearance requirements cover thickness, dimensions, surface quality, and roughness. Performance requirements include chemical composition and mechanical properties, such as yield strength and tensile strength. The test methods involve testing thickness, chemical composition, and mechanical properties. The inspection rules require batch acceptance, and reinspection shall be conducted in accordance with relevant standards. The marking, packaging, and quality manuals shall comply with the provisions of GB/T 247, helping enterprises participate in international trade.