无锡本地市场方管价格还将窄幅盘整运行为主…方管本周无锡方管价格较上周下跌20元/吨。本周武汉方管行情总体弱势盘整运行。主要受二方面影响，一是高温；二是期货下跌带动现货下跌。据了解，目前当地下游厂家，有的放高温假，只上半天班。下游采 购也多持观望态度，据当地方管厂家所述，近2日出现飞单情况，上午价格锁了货，下午都说付不了款，下游方管厂家资…

方管强度是指焊接方管资料正在静荷作用下抵制毁坏(适量塑性变形或者折断)的功能。因为负荷的作用形式有拉伸、紧缩、蜿蜒、剪切等方式，因为强度也分成抗拉强度、抗压强度、抗弯强度、抗剪强度等。各种强度间常有定然的联络，运用中正常较多以抗拉强度作为最根本的强度表针。

Square tube strength refers to the function of resisting damage (plastic deformation or fracture) of welded square tube data under static load. Because the load acts in the form of tension, contraction, winding, shearing and so on, because the strength is also divided into tensile strength, compressive strength, flexural strength, shear strength and so on. There is always a definite connection between various strengths. Tensile strength is the most basic strength gauge needle in normal use. 【1】焊接方管的功能指数分析-强度 以很大进度作用来机件上的负荷称为冲锋陷阵负荷，焊接方管正在冲锋陷阵负荷作用下抵制毁坏的威力所谓冲锋陷阵韧性。

[1] Functional index analysis of welded square pipe-the load on the machine parts is called the charge-sink-array load because of the great progress of strength. The resistance of welded square pipe to damage under the charge-sink-array load is called the impact-sink-array toughness.

【2】焊接方管的功能指数分析-冲锋陷阵韧性后面所议论的强度、塑性、角度都是金属正在静负荷作用下的机器功能表针。实践上，许多机械整机都是正在重复负荷雇用务的，正在这种环境下整机会发生疲倦。

[2] The strength, plasticity and angle discussed after the toughness of the impact sink array are all the machine function needles of the metal under static load. In practice, many machines are engaged under repeated loads. Under such circumstances, fatigue occurs in the whole machine.

【3】焊接方管的功能指数分析-疲倦罕用的方法有焊接方管布氏角度(HB)、洛氏角度(HRA、HRB、HRC)和维氏角度(HV)等方法。 角度是权衡金属资料软硬水平的表针。眼前生年中内定角度方法最罕用的是压入角度法，它是用定然多少何外形的压头正在定然负荷下压入被测试的金属资料表面，依据被压入水平来内定其角度值。

[3] Functional Index Analysis of Welded Square Pipe - The methods rarely used for fatigue analysis are Brinell Angle (HB), Rockwell Angle (HRA, HRB, HRC) and Vickers Angle (HV) of Welded Square Pipe. Angle is a gauge needle for weighing the hard and soft level of metal data. Pressure angle method is the most rarely used method in the current life. It uses a fixed number of shapes of the pressure head to press into the tested metal data surface under a fixed load, and to determine its angle value according to the level of pressure.

【4】焊接方管的功能指数分析-角度塑性是指焊接方管资料正在负荷作用下，发生塑性变形(永远变形)而不毁坏的威力。

[4] Functional index analysis of welded square pipe-angular plasticity refers to the power of plastic deformation (permanent deformation) without damage of welded square pipe data under load.

【5】焊接方管的功能指数分析-塑性方管厂家的力学功能

Functional Index Analysis of Welded Square Pipe-Mechanical Function of Plastic Square Pipe Manufacturer

唐山方管市场价格小幅下跌厂家多以出货为主…方管唐山方管市场价格小幅下跌，成交整体一般，部分方管厂家成交情况不一，低价出货较多。目前下游需求正在逐渐释放，方管厂家整体心态方面偏空，当下厂家多以出货为主。库存方面整体来说要完全消化还需一段时间，随着后期需求的释放，短期内供给压力依然存在。 价格方面，三级E标方管方面，河钢产Φ12mm方管市场价格为3470元，较… 乌鲁木齐方管市场或将以震荡盘整为主成交依…方管本周乌鲁木齐方管厂家市场各商户平稳报价，市场成交依旧冷清。据了解，今日八钢出台下月板材期货价格，依旧以平盘为主，本地方管厂家市场价格弱势调 整。成交方面，临近年底，乌鲁木齐方管厂家市场需求日渐减少，多数方管厂家日成交量在50吨以内。资源方面，本周由于主导钢厂到货量偏低，但市场需求基本停滞，市场整体库存较…