《揚子晚報》報道：L245直縫鋼管【勝倉管業 高經理13730570531 QQ：2927372564】指管體縱向僅有一條焊縫的焊接鋼管,GB/9711.1規定直徑大于914.4時直縫鋼管【勝倉管業 高經理13730570531 QQ：2927372564】可以有兩條直焊縫,且焊縫夾角為180度。According to the Yangtze Evening News, [13730570531 QQ: 2927372564, Senior Manager of Shengcang Pipe Industry] L245 straight-seam steel pipe has only one weld in the longitudinal direction of the finger pipe body. According to GB/9711.1, when the diameter is greater than 914.4, the straight-seam steel pipe can have two straight welds and the angle between the welds is 180 degrees.焊縫質量要求同一條焊縫直縫鋼管【勝倉管業 高經理13730570531 QQ：2927372564】技術參數一致。按生產工藝區分為：ERW高頻直縫鋼管,JCOE直縫鋼管,卷制直縫鋼管。直縫鋼管是高頻直縫、埋弧直縫、電焊直縫、管線直縫等生產工藝產品的總稱。The quality requirements of the weld are consistent with the technical parameters of a straight seam pipe. According to the production process, it is divided into: ERW high frequency straight seam steel pipe, JCOE straight seam steel pipe and rolled straight seam steel pipe. Longitudinal seam steel pipe is the general name of high frequency straight seam, submerged arc straight seam, electric welding straight seam, pipeline straight seam and other production technology products.高頻直縫鋼管采用高頻電流的集膚效應使鋼板兩端短時間內產生高溫并外力擠壓對熔在一起,是真正的無焊條母材對接。ERW高頻直縫鋼管因采用熱軋卷板作為原料,壁厚均勻可控制在±0.2mm左右,鋼管兩端按美國APl標準或GB/T9711.1標準,修端打坡口,定尺長度交貨等優點。近幾年來,各天然氣管網工程和煤氣公司已廣泛采用ERW鋼管作為城市管網的主要鋼管【勝倉管業 高經理13730570531 QQ：2927372564】。The skin effect of high frequency electric current is adopted in the high frequency straight seam steel pipe, which makes the two ends of the steel plate produce high temperature in a short time and extrude and melt together by external force. It is a real butt joint without welding rod. The wall thickness of ERW high frequency straight seam steel tube can be controlled about (+0.2 mm) by using hot rolled coil plate as raw material. Both ends of the steel tube can be delivered according to American APl standard or GB/T9711.1 standard, with grooved ends trimmed and fixed length. In recent years, the ERW pipe has been widely used as the main pipe of the city pipe network by the natural gas pipeline network engineering and gas companies.目前世界鋼管【勝倉管業 高經理13730570531 QQ：2927372564】使用比例中ERW高頻直縫鋼管占到60%。直縫鋼管在河北常指JCOE生產的雙面埋弧直縫鋼管,采用JCOE冷成型工藝,焊縫使用焊絲,并同時用顆粒焊劑埋弧,故此得名為埋弧直縫鋼管。At present, the proportion of ERW steel pipe in the world is 60%. Longitudinal seam steel pipe in Hebei province usually refers to double-sided submerged-arc straight-seam steel pipe produced by JCOE. It is named as submerged-arc straight-seam steel pipe because it adopts JCOE cold-forming process, uses welding wire for welding seam and submerged-arc with granular flux at the same time.埋弧焊直縫鋼管主要是生產工藝靈活,可以生產325mm至1420mm中間的任意規格與壁厚。極大的滿足了世界各國對鋼管尺寸標準使用,而高頻直縫鋼管【勝倉管業 高經理13730570531 QQ：2927372564】通常生產中內常用規格。高頻直縫鋼管在河北通常叫做原管,行業自行區別于埋弧焊直縫鋼管,或熱擴高頻直縫鋼管的名稱混肴。Submerged arc welded straight-seam steel pipe is mainly flexible production process, can produce 325mm to 1420mm between any specifications and wall thickness. It greatly meets the requirements of the world for the use of steel pipe size standards, and high-frequency straight-seam steel pipe is usually produced in the commonly used specifications. High-frequency straight-seam steel pipe in Hebei is usually called the original pipe, the industry is different from submerged arc welding straight-seam steel pipe, or hot expansion of high-frequency straight-seam steel pipe name mix.【勝倉管業 高經理13730570531 QQ：2927372564】
二是貿易談判即使失敗，市場已有心理準備而處之泰然。【勝倉管業 高經理13730570531 QQ：2927372564】當然談判有可能破裂，但由于市場心理對此已有準備。因此即便談判沒有什么成果，市場參與者們也能夠坦然面對，不會因此產生重大利空。不僅如此，貿易談判破裂，外部需求形勢惡化，還會促使中國決策層進一步擴大內部需求，尤其是加大多個方面的“補短板”投資。譬如補環保短板投資、補城市防洪排澇短板投資、補醫療短板投資、補住房短板投資等。這些都會激發新的國內鋼材需求，反而形成鋼材市場利好。【勝倉管業 高經理13730570531 QQ：2927372564】
三是如果貿易談判獲得成功，鋼材市場將收獲意外之喜。本來市場已經不抱太大希望，但如果貿易談判獲得一些成果，外部需求因此得到相應改善，對于鋼材市場而言，自然是“意外之喜”，額外提振市場信心。
由此可見，上述三個方面市場心理影響及市場氛圍來看，貿易戰對于鋼材市場的影響，其實是利多明顯壓過利空。正是因為如此，所以今年以來鋼材價格能夠震蕩揚升，這也是年初一些市場參與者們始料不及的。預計年內鋼材市場參與者們的心理活動將繼續受到上述幾個方面的左右，由此決定了年內鋼材市場行情高位運行，沖高回落的空間不是很大。而目前鋼材市場價格的適度回調，無疑會為“金九銀十”行情的高位運行，提供了較好的實現基礎。【勝倉管業 高經理13730570531 QQ：2927372564】
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