日标矩形管STKR400壁厚偏差

日标矩形管stkr400壁厚偏差
日标方管：为此，现就温度裂缝产生机理及如何有效控制裂缝的出现和发展，谈几点粗浅的认识。温度裂缝产生机理及特征混凝土浇筑后，在硬化过程中，水泥水化产生大量的水化热。由于混凝土的体积较大，大量的水化热聚积在混凝土内部而不易散发，导致内部温度急剧上升，而混凝土表面散热较快，使得混凝土结构内外出现较大的温差，这些温差造成内部与外部热胀冷缩的程度不同，使混凝土表面产生一定的拉应力。当拉应力超过混凝土的抗拉强度极限时，混凝土表面就会产生裂缝，这种裂缝多发生在混凝土施工中后期。

日标方矩管尺寸表：
150x75x6mm (rhs) rectangular steel hollow section (19.34 kg/m)
140x140x5mm (shs) square steel hollow section (21.10 kg/m)
150x100x5mm (rhs) rectangular steel hollow section (18.70 kg/m)
140x140x6.3mm (shs) square steel hollow section (26.30 kg/m)
150x100x6.3mm (rhs) rectangular steel hollow section (23.30kg/m)
140x140x8mm (shs) square steel hollow section (32.90 kg/m)
150x100x8mm (rhs) rectangular steel hollow section (29.10 kg/m)
140x140x10mm (shs) square steel hollow section (40.40 kg/m)
150x100x10mm (rhs) rectangular steel hollow section (35.70kg/m)
140x140x12.5mm (shs) square steel hollow section (49.50 kg/m)
150x100x12.5mm (rhs) rectangular steel hollow section (43.60kg/m)
150x150x5mm (shs) square steel hollow section (22.70 kg/m)
160x80x5mm (rhs) rectangular steel hollow section (18.00 kg/m)
150x150x6.3mm (shs) square steel hollow section (28.30 kg/m)
160x80x6.3mm (rhs) rectangular steel hollow section (22.30kg/m)
150x150x8mm (shs) square steel hollow section (35.40 kg/m)
160x80x8mm (rhs) rectangular steel hollow section (27.90 kg/m)
150x150x10mm (shs) square steel hollow section (43.60 kg/m)
160x80x10mm (rhs) rectangular steel hollow section (34.20 kg/m)
150x150x12.5mm (shs) square steel hollow section (53.40 kg/m)
200x100x5mm (rhs) rectangular steel hollow section (22.70 kg/m)
150x150x16mm (shs) square steel hollow section (66.40 kg/m)
200x100x6.3mm (rhs) rectangular steel hollow section (28.30kg/m)
180x180x5mm (shs) square steel hollow section (27.40 kg/m)
200x100x8mm (rhs) rectangular steel hollow section (35.40 kg/m)

日标矩形管参数表：
180x180x6.3mm (shs) square steel hollow section (34.20 kg/m)
200x100x10mm (rhs) rectangular steel hollow section (43.60kg/m)
180x180x8mm (shs) square steel hollow section (43.00 kg/m)
200x100x12.5mm (rhs) rectangular steel hollow section (53.40kg/m)
180x180x10mm (shs) square steel hollow section (53.00 kg/m)
200x100x16mm (rhs) rectangular steel hollow section (66.40kg/m)
180x180x12.5mm (shs) square steel hollow section (65.20 kg/m)
250x150x5mm (rhs) rectangular steel hollow section (30.50 kg/m)
180x180x16mm (shs) square steel hollow section (81.40 kg/m)
250x150x6.3mm (rhs) rectangular steel hollow section (38.20kg/m)
200x200x5mm (shs) square steel hollow section (30.50 kg/m)
250x150x8mm (rhs) rectangular steel hollow section (48.00 kg/m)
200x200x6.3mm (shs) square steel hollow section (38.20 kg/m)
250x150x10mm (rhs) rectangular steel hollow section (59.30kg/m)
200x200x8mm (shs) square steel hollow section (48.00 kg/m)
250x150x12.5mm (rhs) rectangular steel hollow section (73.00kg/m)
200x200x10mm (shs) square steel hollow section (59.30 kg/m)
250x150x16mm (rhs) rectangular steel hollow section (91.50kg/m)
200x200x12.5mm (shs) square steel hollow section(73.00 kg/m)
300x200x6.3mm(rhs) rectangular steel hollow section (48.10kg/m)
200x200x16mm (shs) square steel hollow section (91.50 kg/m)
300x200x8mm (rhs) rectangular steel hollow section (60.50 kg/m)
250x250x6.3mm (shs) square steel hollow section (48.10 kg/m)
300x200x10mm(rhs) rectangular steel hollow section (75.00 kg/m)
250x250x8mm (shs) square steel hollow section (60.50 kg/m)

日标管材重量表：
300x200x12.5mm (rhs) rectangular steel hollow section (92.60kg/m)
250x250x10mm (shs) square steel hollow section (75.00 kg/m)
300x200x16mm(rhs) rectangular steel hollow section (117.00kg/m)
250x250x12.5mm (shs) square steel hollow section (92.60 kg/m)
400x200x8mm (rhs) rectangular steel hollow section (73.10 kg/m)
250x250x16mm (shs) square steel hollow section (117.00 kg/m)
400x200x10mm(rhs) rectangular steel hollow section (90.70 kg/m)
300x300x6.3mm (shs) square steel hollow section (57.90 kg/m)
400x200x12.5mm (rhs) rectangular steel hollow section (112.00kg/m)
300x300x8mm (shs) square steel hollow section (73.10 kg/m)
400x200x16mm (rhs) rectangular steel hollow section (142.00kg/m)
300x300x10mm (shs) square steel hollow section (90.70 kg/m)
450x250x8mm (rhs) rectangular steel hollow section (85.70 kg/m)
300x300x12.5mm (shs) square steel hollow section (112.00 kg/m)
450x250x10mm (rhs) rectangular steel hollow section (106.00kg/m)
300x300x16mm (shs) square steel hollow section (142.00 kg/m)
450x250x12.5mm (rhs) rectangular steel hollow section (132.00kg/m)
350x350x8mm (shs) square steel hollow section (85.70 kg/m)
450x250x16mm (rhs) rectangular steel hollow section (167.00kg/m)
350x350x10mm (shs) square steel hollow section (106.00 kg/m)
500x200x8mm (rhs) rectangular steel hollow section (85.70 kg/m)
350x350x12.5mm (shs) square steel hollow section (132.00 kg/m)
500x200x10mm (rhs) rectangular steel hollow section (106.00kg/m)
350x350x16mm (shs) square steel hollow section (167.00 kg/m)
500x200x12.5mm (rhs) rectangular steel hollow section (132.00kg/m)
400x400x10mm (shs) square steel hollow section (122.00 kg/m)
500x200x16mm (rhs) rectangular steel hollow section (167.00kg/m)
400x400x12.5mm (shs) square steel hollow section (152.00 kg/m)
500x300x10mm (rhs) rectangular steel hollow section (122.00kg/m)
400x400x16mm (shs) square steel hollow section (192.00 kg/m)
500x300x12.5mm (rhs) rectangular steel hollow section (152.00kg/m)
500x300x16mm (rhs) rectangular steel

stkr400方矩管：
喇叭线：在音响中喇叭线是*后传输信号的环节，用户若为了省钱而选用较次的喇叭线那势必前功尽弃，导致音响效果大打折扣。线材知识模拟音频线：它是传统的、广泛使用的传递左右两声道音频信号的音频线。一般在中低档音响中用于碟机和功放机之间的连接。平衡线：与模拟音频线一样，都是传递左右声道音频信号，但结构不一样，以致传输的声音效果也不一样，它比模拟音频线传输通透、饱满、宽广许多。平衡线只能用于电路设置的**音响。