T/ZLJYXH 2-2023 Active Group standards

T/ZLJYXH 2-2023 Galvanized steel step board

Publish Date: 2023-10-23 Implement Date: 2023-11-01 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/ZLJYXH 2-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Integrated Building Components

Publish Date: 2023-10-23

Implement Date: 2023-11-01

Scope

Scope: This document specifies the classification and main parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of galvanized steel tread plates. This document applies to galvanized steel tread plates used in conjunction with socket-type disc-and-latch steel pipe bracket components in construction projects. Main technical content: 1. Raw material properties 1.1 Galvanized steel strips shall be accompanied by a quality certificate or conformity certificate. 1.2 The tensile property test of galvanized steel strips shall comply with the relevant provisions of GB/T 700 for the Q195 grade. 2. Appearance 2.1 The galvanized layer of galvanized steel tread plates shall be uniform and firm, without zinc deficiency, zinc leakage, or corrosion spots. 2.2 The surface of galvanized steel tread plates shall be smooth, and the edges of the plates shall be smooth without burrs. 2.3 The anti-slip holes of galvanized steel tread plates shall be of consistent size and evenly distributed. 2.4 The reinforcing ribs of galvanized steel tread plates shall be evenly distributed, of consistent size, and the number of ribs shall correspond to the length of the steel tread plates. 3. Welding and riveting quality 3.1 The welds of galvanized steel tread plates shall be smooth and flat, without damage to the base material, underwelding, detachment, undercutting, or welding through. 3.2 The riveting of galvanized steel tread plates shall be firm, and the rivets shall not loosen. The rivet heads and riveted parts shall fit tightly together, and the rivet heads shall not have cracks. 4. Dimensions 4.1 The allowable deviation of the length of galvanized steel tread plates shall be ±3mm. 4.2 The allowable deviation of the width of galvanized steel tread plates shall be ±2mm. 4.3 The allowable deviation of the height of galvanized steel tread plates shall be ±1.0mm. 4.4 The allowable deviation of the thi