A513 Steel Square Tubing, Thick wall square steel pipe, large diameter square steel pipe, seamless square steel pipe, low alloy square steel pipe, 135*135*10 square steel pipe, tower crane square steel pipe, Q345B low alloy square steel pipe, 20# seamless square steel pipe A513 Steel Square Tubing, As the name implies, it is a square shape of the tube, many kinds of material can form a square tube body, its medium in, what to use, where to use, most of the square tube to steel pipe for the majority, mostly for structural square tube, decoration square tube, building square tube and so on. A513 Steel Square Tubing, It's a name for a square tube, which is a tube of equal length. It is made of strip steel after processing and rolling. Generally, the strip is unpacked, leveled, crimped and welded into a round tube, which is rolled into a square tube and then cut into the required length. Usually 50 sticks per pack. A513 Steel Square Tubing, There are seamless and weld points, seamless square tube is the seamless tube extrusion molding. Square steel pipe, thick wall square steel pipe, large diameter square steel pipe, seamless square steel pipe, low alloy square steel pipe, 135*135*10 square steel pipe, tower crane square steel pipe, Q345B low alloy square steel pipe, 20# seamless square steel pipe 1. Exponential performance analysis of square tubes - plasticity Plasticity refers to the ability of a metal material to produce plastic deformation (permanent deformation) without damage under load. 2. Performance index analysis of square tube - hardness Hardness is a gauge of how hard or soft a metal material is. At present, the most commonly used method to determine hardness in production is the indenter hardness method, which is to use a certain geometric shape of the indenter head under a certain load into the surface of the tested metal materials, according to the degree of the indenter to determine its hardness value. Commonly used methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV) and other methods. 3. Performance index analysis of square tube - fatigue The strength, plasticity, and hardness discussed above are indicators of the mechanical properties of metals under static loading. In fact, many machine parts are operated under cyclic loads, and fatigue can occur under these conditions. 4. Performance index analysis of square pipe - impact toughness The load acting on the parts at a high speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness. 5. Square pipe performance index analysis - strength square steel pipe, thick wall square steel pipe, large diameter square steel pipe, seamless square steel pipe, low alloy square steel pipe, 135*135*10 square steel pipe, tower crane square steel pipe, Q345B low alloy square steel pipe, 20# seamless square steel pipe Strength is the ability of a metal material to resist failure (excessive plastic deformation or fracture) under static loading. Due to the mode of loading in the form of stretching, compression, bending, shearing, so the strength is also divided into tensile strength, compressive strength, bending strength, shear strength and so on. There is often a certain connection between various strengths, and tensile strength is generally used as the most basic strength pointer.

Grade	element	C	Mn	P	S
ASTM A500 Gr.b	%	0.05%-0.23%	0.3%-0.6%	0.04%	0.04%

 

Acc.to EN10027/1	Acc.to EN10027/2	C% max (Norminal W.T.(mm)		Si% max	Mn% max	P% max	S% max	N% max
and IC 10		≤ 40
S235JRH	1.0039	0.17	0.20	-	1.40	0.045	0.045	0.009
S275JOH	1.0149	0.20	0.22	-	1.50	0.040	0.040	0.009
S275J2H	1.0138	0.20	0.22	-	1.50	0.035	0.035	-
S355JOH	1.0547	0.22	0.22	0.55	1.60	0.040	0.040	0.009
S355J2H	1.0576	0.22	0.22	0.55	1.60	0.035	0.035	-

Size byInch (diameter)	Thickness	Sizes byMM  (diameter)	Thickness
inch	inch	mm	mm
1/2" x 1/2"	0.065"	16mm×16mm	0.4mm~1.5mm
3/4" x 3/4"	0.049"	18mm×18mm	0.4mm~1.5mm
	0.065"	20mm×20mm	0.4mm~3mm
	0.083"	22mm×22mm	0.4mm~3mm
	0.120"	25mm×25mm	0.6mm~3mm
1" x 1"	0.049"	30mm×30mm	0.6mm~4mm
	0.058"	32mm×32mm	0.6mm~4mm
	0.065"	34mm×34mm	1mm~2mm
	0.072"	35mm×35mm	1mm~4mm
	0.083"	38mm×38mm	1mm~4mm
	0.095"	40mm×40mm	1mm~4.5mm
	0.109"	44mm×44mm	1mm~4.5mm
	0.120"	45mm×45mm	1mm~5mm
1 1/8" x 1 1/8"	0.035"	50mm×50mm	1mm~5mm
	0.049"	52mm×52mm	1mm~5mm
	0.065"	60mm×60mm	1mm~5mm
	0.109"	70mm×70mm	2mm~6mm
	0.120"	75mm×75mm	2mm~6mm
1 1/4" x 1 1/4"	0.049"	76mm×76mm	2mm~6mm
	0.065"	80mm×80mm	2mm~8mm
	0.072"	85mm×85mm	2mm~8mm
	0.083"	90mm×90mm	2mm~8mm
	0.109"	95mm×95mm	2mm~8mm
	0.120"	100mm×100mm	2mm~8mm
	0.135"	120mm×120mm	4mm~8mm
	0.156"	125mm×125mm	4mm~8mm
	0.188"	130mm×130mm	4mm~8mm
1 1/2" x 1 1/2"	0.049"	140mm×140mm	6mm~10mm
	0.065"	150mm×150mm	6mm~10mm
	0.072"	160mm×160mm	6mm~10mm
	0.083"	180mm×180mm	6mm~12mm
	0.109"	200mm×200mm	6mm~30mm
	0.120"	220mm×220mm	6mm~30mm
	0.140"	250mm×250mm	6mm~30mm
	0.188"	270mm×270mm	6mm~30mm
	0.250"	280mm×280mm	6mm~30mm
1 3/4" x 1 3/4"	0.065"	300mm×300mm	8mm~30mm
	0.083"	320mm×320mm	8mm~30mm
	0.095"	350mm×350mm	8mm~30mm
	0.109"	380mm×380mm	8mm~30mm
	0.120"	400mm×400mm	8mm~30mm
	0.188"	420mm×420mm	10mm~30mm
2" x 2"	0.049"	450mm×450mm	10mm~30mm
	0.065"	480mm×480mm	10mm~30mm
	0.083"	500mm×500mm	10mm~30mm
	0.109"	550mm×550mm	10mm~40mm
	0.120"	600mm×600mm	10mm~40mm
	0.145"	700mm×700mm	10mm~40mm
	0.165"	800mm×800mm	10mm~50mm
	0.188"	900mm×900mm	10mm~50mm
	0.250"	1000mm×1000mm	10mm~50mm
	0.312"
2 1/4" x 2 1/4"	0.188"
	0.250"
2 1/2" x 2 1/2"	0.083"
	0.109"
	0.120"
	0.188"
	0.250"
	0.312"

 

3" x 3"	0.083"
	0.120"
	0.188"
	0.250"
	0.312"
	0.375"
3 1/2" x 3 1/2"	0.120"
	0.188"
	0.250"
	0.312"
	0.375"
4" x 4"	0.083"
	0.120"
	0.156"
	0.188"
	0.250"
	0.312"
	0.375"
	0.500"

   

4 1/2" x 4 1/2"	0.188"
	0.250"
	0.312"
	0.375"
5" x 5"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
6" x 6"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
	0.625"
7" x 7"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
	0.625"

 

8" x 8"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
	0.625"
9" x 9"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
	0.625"
10" x 10"	0.188"
	0.250"
	0.312"
	0.375"
	0.500"
	0.625"
12" x 12"	0.250"
	0.312"
	0.375"
	0.500"
	0.625"
14" x 14"	0.312"
	0.375"
	0.500"
	0.625"
16" x 16"	0.312"
	0.375"
	0.500"
	0.625"

Grade	Yield Strength	Tensile Strength	Elongation
A500.Gr.b	46 ksi	58 ksi	23%
A513.GR.B	72 ksi	87 ksi	10%

 

Norm		Yield Strength			Tensile Strength		Min.elogation				Min.percent properties
Acc.to EN10027/1and IC 10	Acc.to EN10027/2	Norminal W.T.mm			Norminal W.T.mm		Longit.		Cross		Test temperature°C	Average min.impact value
		≤16	>6	>40	<3	≤3≤65	Norminal W.T.mm
			≤65	≤65			≤40	>40	>40	≤65
								≤65	≤40
S253JRH	1.0039	235	225	215	360-510	340-470	26	25	24	23	20	27
S275JOH	1.0149	275	265	255	410-580	410-560	22	21	20	19	0	27
S275J2H	1.0138	275	265	255	430-560	410-560	22	21	20	19	-20	27
S355JOH	1.0547	355	345	335	510-680	490-630	22	21	20	19	0	27
S355J2H	1.0576	355	345	335	510-680	490-630	22	21	20	19	-20	27

EN 10210-1	NF A 49501 NF A 35501	DIN 17100 DIN 17123/4/5	BS 4360	UNI 7806
S235JRH	E 24-2	St 37.2	-	Fe 360 B
S275JOH	E 28-3	St 44.3 U	43 C	Fe 430 C
S275J2H	E 28-4	St 44.3 N	43 D	Fe 430 D
S355JOH	E 36-3	St 52.3 U	50 C	Fe 510 C
S355J2H	E 36-4	St 52.3 N	50 D	Fe 510 D
S275NH	-	St E 285 N	-	-
S275NLH	-	TSt E 285 N	43 EE	-
S355NH	E 355 R	St E 355 N	-	-
S355NLH	-	TSt E 355 N	50 EE	-
S460NH	E 460 R	St E 460 N	-	-
S460NLH	-	TSt E 460 N	55 EE	-

- block letter "S" means "STEEL FOR STRUCTURAL APPLICATIONS" - the next fi gure means the minim. yield value required for wall thickness ≤16 mm - "J2" means impact test value -20° C min. 27 joule - block letter "H" means "HOLLOW SECTION".