Model NO.:

4140/4130/1045 S45C ST52 ST44 42CrMn Q345D S355

After-sales Service:

Free

Warranty:

1year

Standard:

AISI, JIS, ASTM, DIN, BS, GB

Certification:

ABS, RoHS

Technique:

Hot Rolled

Wall Thickness:

Thick

Surface Treatment:

Black/Polished/Galvanized/Color Coated

Alloy:

Alloy/Not Alloy

Tolerance:

+/-1%

Surface:

Black, Pickled, Polished,Galvanized,Color Coated

Length:

5.8m,6m,11.8m 12m or Any Length You Need

Processing Service:

Bending, Welding, Decoiling, Punching, Cutting

Certificate:

ISO 9001:2008/BV

Application:

Construction ,Chemical ,Shipbuilding etc.

Price Term:

EXW/Fca/Fob/CFR/CIF

Payment Term:

T/T or L/C

Transport:

by Container, Bulk Ship, Railway

Package:

in Bundle with The Steel Strip or Waterproof Paper

Stock:

8000ton

Delivery Time:

Within 7 Days

Inspection:

SGS/BV/TUV

Key Words:

Square Steel, Square Billet, Steel Bar, Steel Rod

MOQ:

Negotiate

Trademark:

Chicago Steel

Transport Package:

Seaworthy Export Package

Specification:

Q235/Q345/SS400/ST37-2/ST52/Q420/Q460

Origin:

China

HS Code:

72149100

Product Description

Export Popular S355 Q345D Hot Rolled Carbon Steel MS Iron Square Billet Bar Cold Drawn Bright Mild Steel Square Solid Bar 45# 1020 Forged Alloy Steel Square Rod

The material of steel Square bar is mainly carbon steel, which contains high carbon element. It has excellent mechanical properties, high strength, good toughness, strong plasticity, and good wear resistance and corrosion resistance. These properties make square steel perform well in various engineering fields.

There are many specifications of square steel, which are mainly distinguished according to their cross-sectional dimensions. Generally speaking, the larger the cross-sectional size of square steel, the stronger its bearing capacity. Common square steel specifications are 8#, 10#, 12#, 14#, 16#, etc., where the numbers represent the section width.

Square steel: It is solid, bar. Different from the square tube, it is hollow and belongs to the pipe. Steel (Steel): It is a material of various shapes, sizes and properties required by steel ingots, billets or steel products through pressure processing
Hot-rolled square steel refers to steel rolled or processed into a square cross-section. Square steel can be divided into two types: hot-rolled and cold-rolled; the side length of hot-rolled square steel is 5-250mm, and the side length of cold-drawn square steel is 3-100mm.

MECHANICAL PROPERTIES:
Yield Point = 36,000 psi
Tensile Strength = 58,000 psi
Elongation = 23% in 2"
Brinell Hardness = 133; Melting Point = 2600F

Product Name	Carbon Steel Billet/Square Steel Bar/Mild Steel Square Billet
Standard	ASTM, AISI, DIN, EN, GB, JIS, etc
Model Number	ASTM 1010,1015,1020,1030,1035,1040,1045,1050,1055,1060,1022,1026,1033,1039,1053,1320,1330,1335,1340,1345,5115,5120,5130,5132,5135,5140,5145,5147,4118,4130,4135,4137,4140,4120,3140,etc
Type	Square
Surface	Pickled,Black,Bright,Polishing,Blasting,etc
Specifications	Round bar: Diameter: 3mm~800mm Angle bar: Size: 3mm20mm20mm~12mm100mm100mm Square bar: Size: 4mm4mm~100mm100mm Hexagonal: Size: 2mm~100mm Flat bar: Thickness: 2mm~100mm Width: 10mm~500mm *Sizes are all customized, contact us for further details. :)
Length	3m,5.8m,6m,11.8m,12m or as required
Application	Chemical industry, shipping industry, manufacturing industry, construction,decorate Industry, electric power, pump shafts, sanitary wares ,furniture handles,boiler, high temperature resistant,low temperatureresistant, corrosion resistant.
Advantages	1.Reasonable price with excellent quality
	2.Abundant stock and prompt delivery
	3.Rich supply and export experiencesincere service

(H*W)	H*B	t1	t2	r	cm2	kg/m	IX	IY	ix	IY	Wx	WY
100*100	100*100	6	8	10	21.9	17.2	383	134	4.18	2.47	76.5	26.7
125*125	125*125	6.5	9	10	30.31	847	294		5.29	3.11	136	47
150*150	150*150	7	10	13	40.55	31.9	1660	564	6.39	3.73	221	75.1
175*175	175*175	7.5	11	13	51.43	40.3	2900	984	7.5	4.37	331	112
200*200	200*200	8	12	16	64.28	50.5	4770	1600	8.61	4.99	477	160
200*200	#200*204	12	12	16	72.28	56.7	5030	1700	8.35	4.85	503	167
250*250	250*250	9	14	16	92.18	72.4	10800	3650	10.8	6.29	867	292
250*250	#250*255	14	14	16	104.7	82.2	11500	3880	10.5	6.09	919	304
300*300	#294*302	12	12	20	108.3	85	17000	5520	12.5	7.14	1160	365
	300*300	10	15	20	120.4	94.5	20500	6760	13.1	7.49	1370	450
	300*305	15	15	20	135.4	106	21600	7100	12.6	7.24	1440	466
350*350	#344*348	10	16	20	146	115	33300	11200	15.1	8.78	1940	646
350*350	350*350	12	19	20	173.9	137	40300	13600	15.2	8.84	2300	776
400*400	#388*402	15	15	24	179.2	141	49200	16300	16.6	9.52	2540	809
	#394*398	11	18	24	187.6	147	56400	18900	17.3	10	2860	951
	400*400	13	21	24	219.5	172	66900	22400	17.5	10.1	3340	1120
	#400*408	21	21	24	251.5	197	71100	23800	16.8	9.73	3560	1170
	#414*405	18	28	24	296.2	233	93000	31000	17.7	10.2	4490	1530
	#428*407	20	35	24	361.4	284	119000	39400	18.2	10.4	5580	1930
	458417	30	50	24	529.3	415	187000	60500	18.8	10.7	8180	2900
	498432	45	70	24	770.8	605	298000	94400	19.7	11.1	12000	4370
150*100	148*100	6	9	13	27.25	21.4	1040	151	6.17	2.35	140	30.2
250*150	194*150	6	9	16	39.76	31.2	2740	508	8.3	3.57	283	67.7
250*275	244*175	7	11	16	5.24	44.1	6120	985	10.4	4.18	502	113
300*200	294*200	8	12	20	73.03	57.3	11400	1600	12.5	4.69	779	160
350*250	340*250	9	16	20	101.5	79.7	21700	3650	14.6	6	1280	292
400*300	390*300	10	14	24	136.7	107	38900	7210	16.9	7.26	2000	481
450*300	440*300	11	18	24	157.4	124	56100	8110	18.9	7.18	2550	541
500*300	482*300	11	15	28	146.4	115	60800	6770	20.4	6.8	2520	451
500*300	488*300	11	18	28	164.4	129	71400	8120	20.8	7.03	2930	541
600*300	582*300	12	17	28	174.5	137	103000	7670	24.3	6.63	3530	511
	588*300	12	20	28	192.5	151	118000	9020	24.8	6.85	4020	601
	#594*302	14	23	28	222.4	175	137000	10600	24.9	6.9	4620	701

Grade	Dia(mm)	Chemical Composition (%)
Grade	Dia(mm)	C	Si	Mn	P	S	Ni	Cr	Cu	Ti	Mo
45	18-60	0.42-0.50	0.17-0.37	0.50-0.80	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25
55		0.52-0.60	0.17-0.37	0.50-0.80	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25
40Mn2		0.37-0.44	0.17-0.37	1.40-1.80	≤0.035	≤0.035		≤0.30
20CrMnTi		0.17-0.23	0.17-0.37	0.80-1.10	≤0.035	≤0.035		1.00-1.30		0.04-0.10
20CrMo		0.17-0.24	0.17-0.37	0.40-0.70	≤0.035	≤0.035		0.80-1.10			0.15-0.25
30CrMo		0.26-0.34	0.17-0.37	0.40-0.70	≤0.035	≤0.035		0.80-1.10			0.15-0.25
35CrMo		0.32-0.40	0.17-0.37	0.40-0.70	≤0.035	≤0.035		0.80-1.10			0.15-0.25
42CrMo		0.38-0.45	0.17-0.37	0.50-0.80	≤0.035	≤0.035		0.90-1.20			0.15-0.25
60Si2MnA		0.38-0.45	0.17-0.37	0.50-0.80	≤0.035	≤0.035		0.90-1.20

Grade	Mechanical property
	(Quenching, tempering, longitudinal)
	Tensile strength	Yield strength	Elongation	Elongation	Percentage reduction of area	Impact absorbing energy
	(σb/MPa)	(σs/MPa)	(δ5/%)	(δ10/%)	(ψ/%)	(AkU2/J)
45	≥600	≥335	≥16		≥40	39
55	≥645	≥380	≥13		≥35	-
40Mn2	≥885	≥735	≥12		≥45	55
20CrMnTi	≥1080	≥850		≥10	≥45	55
20CrMo	≥885	≥685	≥12		≥50	78
30CrMo	≥930	≥785	≥12		≥50	63
35CrMo	≥980	≥835	≥12		≥45	63
42CrMo	≥1080	≥930	≥12		≥45	63
60Si2MnA	≥1274	≥1176	≥5		≥25	-

Theoretical weight table of square steel bar
Side length(mm)	Sectional area(cm2)	Theoretical weight (kg/m)	Side length	Sectional area(cm2)	Theoretical weight (kg/m)
5mm	0.25	0.196	30mm	9	7.06
6mm	0.36	0.283	32mm	10.24	8.04
7mm	0.49	0.385	34mm	11.56	9.07
8mm	0.64	0.502	36mm	12.96	10.17
9mm	0.81	0.636	38mm	14.44	11.24
10mm	1	0.785	40mm	16	12.56
11mm	1.21	0.95	42mm	17.64	13.85
12mm	1.44	1.13	45mm	20.25	15.9
13mm	1.69	1.33	48mm	23.04	18.09
14mm	1.96	1.54	50mm	25	19.63
15mm	2.25	1.77	53mm	28.09	22.05
16mm	2.56	2.01	56mm	31.36	24.61
17mm	2.89	2.27	60mm	36	28.26
18mm	3.24	2.54	63mm	39.69	31.16
19mm	3.61	2.82	65mm	42.25	33.17
20mm	4	3.14	70mm	49	38.49
21mm	4.41	3.46	75mm	56.25	44.16
22mm	4.84	3.8	80mm	64	50.24
24mm	5.76	4.52	85mm	72.25	56.72
25mm	6.25	4.91	90mm	81	63.59
26mm	6.76	5.3	95mm	90.25	70.85
28mm	7.84	6.15	100mm	100	78.5

Carbon Steel Hot Rolled Square Steel Bar

Hot-rolled square steel refers to steel rolled or processed into a square cross-section. Square steel can be divided into two types: hot-rolled and cold-rolled; the side length of hot-rolled square steel is 5-250mm, and the side length of cold-drawn square steel is 3-100mm.

The manufacturing process of steel square bar includes hot rolling and cold drawing. Hot-rolled square steel is made by heating the billet to a certain temperature and pressing it through rolling machinery. The surface of hot-rolled square steel is relatively rough, but its mechanical properties are better. Cold-drawn square steel is made by cold-working hot-rolled square steel. Its surface is smooth, but its strength and toughness are slightly lower than hot-rolled square steel.

Square Steel Bar Usage:

The application fields of steel Square bar are very wide. In the field of construction, square steel is often used in structures such as beams and columns, foundations, bridges, etc., and its strength and stability can ensure the safety of buildings. In the field of machinery manufacturing, square steel is often used to manufacture machine bases, bearing housings and other components. Its strength and durability can ensure the stability and service life of the machine. In the field of logistics, square steel is often used to make shelves, and its load-bearing capacity and stability can ensure the safe storage of goods.

Our Advantages:

Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.

Top quality, Competitive price, Strict inspection,Sufficient inventory, Quick delivery
High quality service!

Any questions or more details,pls don't hesitate to contact us online.

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Export Popular S355 Hot Rolled Carbon Steel Ms Iron Square Billet Bar Cold Drawn Bright Mild Steel Square Solid Bar 45# 1020 Forged Square Alloy Steel Rod/Bar

Shandong Chicago Material Co., Ltd