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    厂家介绍冷拔无缝钢管一般交货状态

    2018-12-13 09:09:05 无锡盛发地坪科技有限公司 阅读

    冷拔钢管产品的最终塑性变形或最终热处理的状态。一般不经过热处理交货的称热轧或冷拔(轧)状态制造状态;经过热处理交货的称热处理状态,或根据热处理的类别称正火(常化)、调质、固溶、退火状态。订货时,交货状态需在合同中注明。

    The state of final plastic deformation or final heat treatment of cold-drawn steel tube products. Generally, the state of manufacture is called hot rolling or cold drawing (rolling) without heat treatment; the state of heat treatment is called heat treatment for heat treatment delivery, or the state of normalization (normalization), tempering, solution and annealing according to the category of heat treatment. When ordering, delivery status should be specified in the contract.

    ②按实际重量交货或按理论重量交货

    (2) Delivery by actual weight or theoretical weight

    实际重量——交货时,其产品重量是按称重(过磅)重量交货;

    Actual Weight - When delivered, the weight of the product is delivered by weighing (overweighing) weight.

    理论重量——交货时,其产品重量是按钢材公称尺寸计算得出的重量。

    Theoretical Weight - When delivered, the weight of the product is calculated according to the nominal size of the steel.

    其计算公式如下(要求按理论重量交货需在合同中注明):

    The calculation formula is as follows (delivery by theoretical weight is required to be specified in the contract):

    碳钢钢管每米的理论重量(碳钢,合金钢,低合金钢,的密度为7.85kg/dm3)计算公式:

    The theoretical weight per meter of carbon steel pipe (carbon steel, alloy steel, low alloy steel, density of 7.85 kg/dm3) is calculated.

    W=0.0246615(D-S)S

    W = 0.0246615 (D-S)S

    式中:

    Formula:

    W——冷拔钢管每米理论重量,kg/m;

    W - theoretical weight per meter of cold-drawn steel pipe, kg/m;

    D——冷拔钢管的公称外径,mm;

    D - Nominal outer diameter of cold drawn steel pipe, mm;

    S——冷拔钢管的公称壁厚,mm。

    S - nominal wall thickness of cold-drawn steel pipe, mm. 



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