GB/T 2518-2019 Translated English of Chinese Standard. (GBT 2518-2019, GB/T2518-2019, GBT2518-2019): Continuously Hot-dip Zinc and Zinc Alloy Coated Steel Sheet and Striphttps://www.chinesestandard.net, 21 mar 2020 - 51 This Standard stipulates the terms, definitions, classification, codes, designation representation methods, order content, dimensions, shapes, weights, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of continuously hot-dip zinc, zinc-iron alloy, zinc-aluminum alloy and aluminum-zinc alloy coated steel sheet and strip (hereinafter referred to as steel sheet and strip). |
Spis treści
| 3 | |
Scope | 6 |
Terms and Definitions | 8 |
Designation Representation Methods Classification and Codes | 10 |
Order Content | 17 |
Technical Requirements | 18 |
Test Methods | 36 |
Inspection Rules | 37 |
Packaging Marking and Quality Certificate | 38 |
Appendix A informative A Comparison of Approximate Designations in This Standard and Related Standards at Home and Abroad | 39 |
Appendix B informative An Introduction and Selection Guide to Coating Type | 42 |
normative Weight Calculation Method in Theoretical Weighing44 | 44 |
informative Chemical Composition of Steel | 46 |
Kluczowe wyrazy i wyrażenia
adopt the stipulated allowed to drop Aluminum-zinc Alloy Coating anti-fingerprint film bainite black rust break is allowed chromium-free passivation Classification and Codes Coated Steel Sheet Coating Type Common Spangle Comparison of Approximate complex phase steel continued from previous demand-side dimensions direction is longitudinal Dual Phase Steel elongation after break elongation strength RP0.2 film treatment hexavalent chromium Interstitial Free Steel Low Alloy Steel martensite Mechanical Properties niobium nominal coating mass P6 in GB/T plastic elongation strength product’s nominal thickness pure zinc coating r90 is allowed sample direction Sample is P6 self-lubricating film sheet and strip signifies that steel Standard Steel and Alloy Steel Type Characteristic stipulated plastic elongation stipulations in Table Strain Hardening Index stretcher strain marks strip shall comply Structure of Coating supply-side surface quality surface structure surface treatment tensile strength test methods trivalent chromium passivation Type of Coating yield phenomenon yield strength Zinc-aluminum Alloy Coating Zinc-iron Alloy Coating