T/JSGT 004-2020 Active Group standards

T/JSGT 004-2020 Controlled nitrogen vanadium reinforced hot-rolled steel bar for concrete

Publish Date: 2020-09-10 Implement Date: 2020-09-11 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 20.00

Out of stock

Basic Information

Standard Code: T/JSGT 004-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Metallurgy

ICS Name: \nSteel rods and steel bars

Publish Date: 2020-09-10

Implement Date: 2020-09-11

Scope

Main technical content: (1) Steelmaking production process: The steelmaking process adopts customized high-vanadium alloys, combined with LF nitrogen blowing and the addition of nitrogen-enhancing agents to control nitrogen content, achieving low-cost high-quality microalloying. The steel bar specifications, chemical composition, and carbon equivalent (melt analysis) should comply with the provisions of Table 2 in the standard, with significantly better component accuracy and consistency than national standards. (2) Mechanical properties: The mechanical property characteristics of the steel bar, such as lower yield strength ReL, tensile strength Rm, elongation after fracture A, and total elongation at maximum force Agt, should comply with the provisions of Table 3, exceeding those of national standards. The ratios R0m/R0eL and R0eL/ReL are equivalent to those in national standards. (3) Weight and allowable deviations: The allowable deviations between the actual weight and theoretical weight of the steel bar should comply with the provisions of Table 4 in the standard, exceeding those of national standards. Table 4: Allowable deviations between actual weight and theoretical weight **Nominal diameter (mm)** **Allowable deviation between actual weight and theoretical weight (%)** 10–12 –4.5–5.5 14–20 –3.5–4.5 22–32 –2.5–3.5