- Calculation method for theoretical weight
- The formula for calculating the theoretical weight of rebar is (unit: kilograms/meter), where is the nominal diameter of the rebar (unit: millimeters).
- For example, for rebar with a nominal diameter of 10 millimeters, the theoretical weight per meter is kilograms/meter.
- This formula is derived based on the density of steel (generally taken as 7.85 grams/cubic centimeter). Because the volume of steel ( is the length. When calculating the weight per meter, meter), and the mass ( is the density), after simplification, the above formula for calculating theoretical weight can be obtained.
- Actual situation of weight verification
- In actual transactions and uses, due to factors such as the production process of rebar, the actual weight may deviate from the theoretical weight to a certain extent.
- Generally, a certain deviation range is allowed. For specific deviation standards, relevant national standards can be referred to, such as “Steel for Reinforcement of Concrete – Part 1: Hot Rolled Plain Bars” (GB/T 1499.1 – 2017) and “Steel for Reinforcement of Concrete – Part 2: Hot Rolled Ribbed Bars” (GB/T 1499.2 – 2018). These standards stipulate the allowable deviation range between the actual weight and theoretical weight of steel bars to ensure product quality and transaction fairness.
- Price calculation method
- The price of rebar is usually quoted in tons. If the weight per meter is known (through theoretical calculation or actual weighing), the weight of a certain length of rebar can be calculated, and then the value of this part of rebar can be calculated according to the price per ton.
- For example, if the price of rebar per ton is 4000 yuan, for a 9-meter-long rebar with a nominal diameter of 12 millimeters, first calculate its theoretical weight per meter kilograms/meter. Then the weight of this rebar is kilograms, which is converted to tons as 0.007992 tons. Its value is approximately yuan.
用英文详细介绍一下螺纹钢重量的计算方法
螺纹钢重量的计算公式在实际应用中有哪些注意事项？
推荐一些学习钢材计算方法的英文资料
