在建筑钢材中，根据不同施工用途，钢材的种类也是不一样的，其中包含了方管。那么对于想要购买的使用者来讲，方管性能、工艺要求以及保存内容是怎样的呢？

In construction steel, according to different construction purposes, the types of steel are also different, including square tubes. So for users who want to buy, what are the performance, process requirements and storage contents of square tube?

方管性能

Square tube performance

塑性是指金属材料在载荷作用下，产生塑性变形（永久变形）而不破坏的能力。

Plasticity refers to the ability of metal materials to produce plastic deformation (permanent deformation) without damage under load.

硬度是衡量金属材料软硬程度的指针。目前生产中测定硬度方法较常用的是压入硬度法，它是用一定几何形状的压头在一定载荷下压入被测试的金属材料表面，根据被压入程度来测定其硬度值。

Hardness is a pointer to measure the hardness and softness of metal materials. At present, the common method for measuring hardness in production is the indentation hardness method. It uses an indenter with a certain geometry to press into the surface of the tested metal material under a certain load, and determines its hardness value according to the degree of indentation.

以很大速度作用于机件上的载荷称为冲击载荷，金属在冲击载荷作用下抵抗破坏的能力叫做冲击韧性。

The load acting on the part at a great speed is called impact load, and the ability of metal to resist failure under impact load is called impact toughness.

强度是指金属材料在静荷作用下抵抗破坏（过量塑性变形或断裂）的性能。

Strength refers to the resistance of metal materials to failure (excessive plastic deformation or fracture) under static load.

方管工艺要求

Process requirements for square tube

1、方管必须在专用进口流水线上进行制作，以确保风管制作精度及风管的密闭性。

1. The square pipe must be manufactured on the special import assembly line to ensure the manufacturing accuracy and tightness of the air pipe.

2、方管配件的下料应在进口专用机器上运用计算机软件全自动化完成，并由进口的钣金专用等离子切割机上完成自动等离子切割工序。

2. The blanking of square pipe fittings shall be completed automatically by using computer software on the imported special machine, and the automatic plasma cutting process shall be completed by the imported special plasma cutting machine for sheet metal.

3、方管的咬口连接应采用进口自动咬合器进行咬合工艺。等等。

3. The bite connection of square pipe shall adopt imported automatic bite device for bite process. wait.

方管保存

Square tube preservation

方矩管货物的场地或者发电站，应取舍正在干净腌臜、排水通顺的中央，远离发生无害气体或者粉尘的厂矿。正在场地上要肃清荒草及所有杂品，维持钢材腌臜。

The site or power station of rectangular tube goods shall choose the center that is being cleaned, pickled and drained smoothly, and be far away from factories and mines where harmless gas or dust occurs. Clean up weeds and all sundries on the site and maintain the steel pickling.

重型型钢、铁轨、辱誊写钢版、大口径竹管、标准件等能够室外堆放。

Heavy section steel, rail, steel plate, large-diameter bamboo pipe, standard parts, etc. can be stacked outdoors.

中中型型钢、盘条、钢骨、中口径竹管、钢丝及钢丝绳等，可正在透风优良的料小棚寄存，但必需上苫下垫。

Medium and medium-sized section steel, wire rod, steel bone, medium diameter bamboo pipe, steel wire and steel wire rope can be deposited in the material shed with excellent ventilation, but they must be covered and padded.

一些中型钢材、薄誊写钢版、钢带、硅片、小口径或者薄壁竹管、各族热轧、冷拔钢材以及价钱高、易侵蚀的非金属制品，可寄存入库。

Some medium-sized steel products, thin transcribed steel plates, steel strips, silicon wafers, small-diameter or thin-walled bamboo tubes, hot-rolled and cold drawn steel products of all ethnic groups, as well as high-priced and erodible non-metallic products, can be deposited and warehoused.

库房应依据天文环境选出，正常采纳一般开启式库房，即有房顶有围子、窗门缜密，设有透风安装的库房。

The warehouse shall be selected according to the astronomical environment, and the general open warehouse shall be adopted normally, that is, the warehouse with roof, enclosure, careful windows and doors and ventilation installation.

库房请求晴天留意透风，下雨天留意开放防潮，时常维持适合的贮存条件。

The warehouse is required to pay attention to ventilation in sunny days, open to moisture in rainy days, and maintain suitable storage conditions from time to time.

济南方管作为建筑行业中比较常见的钢材，对于方管所具备的相关内容您可以关注我们的网站www.jnhxtcg.com了解更多。

Jinan square tube is a common steel in the construction industry. For the relevant contents of square tube, you can pay attention to our website www.jnhxtcg.com Com learn more.