Supply 550 * 300 national standard H-section steel, Q345B low alloy H-section steel for steel structure engineering

  H-beam is a widely used profile in steel structure buildings
It is different from I-beam
The first is the flange, and the second is that the inner surface of the flange has no inclination, and the upper and lower surfaces are parallel
The section characteristics of H-beam are obviously better than those of traditional I-beam, channel steel and angle steel
H-section steel is an economic section high-efficiency profile with more optimized section area distribution and more reasonable strength weight ratio, because its section is the same as the English letter & quot; H" The same name
There is no slope on the inner side of the two outer edges of H-section steel, which is straight
This makes the welding and splicing of H-section steel simpler than I-section steel, better mechanical properties per unit weight, and can save a lot of materials and construction time
The section of I-beam has good straight pressure and tensile resistance, but the section size cannot resist torsion because the wing plate is too narrow
On the contrary, H steel has its own advantages and disadvantages

500*200	496*199*9*14	79 5
	500*200*10*16	89 6
	R 506*201*11*19	102
500*300	482*300*11*15	115
	488*300*11*18	129
500*400	#498*432*45*70	605
550*300	R 544*300*11*15	116
	R 550*300*11*18	130
600*200	596*199*19*15	95 1
	600*200*11*17	106
	R 606*201*12*20	118
600*300	582*300*12*17	137
	588*300*12*20	151
	R 594*302*14*23	170
650*300	R 646*299*10*15	120
	R 650*300*11*17	134
	R 656*301*12*20	154
700*300	R 692*300*13*20	163
	R 700*300*13*24	185
750*300	R 734*299*12*16	143
	R 742*300*13*20	168
	R 750*300*13*24	187
	R 758*303*16*28	224
800*300	R 792*300*14*22	188
	800*300*14*26	210