Cheap Price Hot-Rolled and Cold-Drawn Square/Flat Steel Bar 1045 1042 Gr. 1043/JIS S45c/ C45e Ck45/1.0503 1.1191 Low-Carbon Hexagonal Steel Bar

• Type: Square Steel, Flat Steel, Hexagonal Steel4
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Alloy Steel
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Blace/Polishing/Galvanizing/ etc
• Model NO.: 1045 1042 Gr.1043/JIS S45C/ C45E Ck45/1.0503 1.119
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Wear-Resistant Steel, Cold Heading Steel, Free-Cut
• Transport Package: Standard Seaworthy Export Packaging or as Required
• Specification: 3000-9000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 7215500000
• Production Capacity: 1000 Ton/Month

Product Description

About products

It includes non-circular cross-section profile, equal wall thickness, variable wall thickness, variable diameter and wall thickness along the length direction, symmetrical and asymmetric cross-section. Such as square, rectangular, conical, trapezoidal, spiral, etc. The special-shaped steel pipe can better adapt to the particularity of the use conditions, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, textile and boiler manufacturing. The methods of producing special-shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc., and the cold drawing method has been widely used.

chemical composition

composition	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Q195	≤0.12	≤0.3	≤0.5	≤0.035	≤0.04	≤0.3	≤0.3	≤0.3	-
Q235	≤0.22	≤0.35	≤1.4	≤0.045	≤0.5	≤0.3	≤0.3	≤0.3	-
Q345	≤0.2	≤0.5	≤17	≤.035	≤0.0335	≤0.3	≤0.5	≤0.3	-
Q390	≤0.2	≤0.5	≤1.7	≤0.035	≤0.035	≤0.3	≤0.5	≤0.3	≤0.1
10#	0.07-0.13	0.17-0.37	0.35-0.65	≤0.035	≤0.03	≤0.15	≤0.3	≤0.3	-
15#	0.12-0.18	0.17-0.37	0.35-0.65	≤0.035	≤0.03	≤0.2	≤0.3	≤0.25	-
20#	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
25#	0.22-0.29	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
30#	0.27-0.34	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
35#	≤0.17	≤0.35	≤1.4	≤0.04	≤0.04	≤0.3	≤0.3	≤0.3	-
40#	0.37-0.44	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
45#	0.42-0.5	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
55#	0.52-0.6	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25	≤0.3	≤0.25	-
16Mn	0.13-0.2	0.2-0.6	1.2-1.6	≤0.025	≤0.01	≤0.3	≤0.3	≤0.2
20Cr	0.18-0.24	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.7-1	≤0.3	≤0.3	≤0.15
40Cr	0.37-0.44	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	≤0.15
15CrMo	0.12-0.18	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.4-0.55
20CrMo	0.17-0.24	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0 .25
30CrMo	0.26-0.34	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0.25
35CrMo	0.32-0.4	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0.25
42CrMo/4140	0.38-0.45	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.9-1.2	≤0.3	≤0.3	0.15-0.25
5120	0.17-0.22	0.15-0.35	0.7-0.9	≤0.035	≤0.035	0.7-0.9	≤0.25	≤0.35	≤0.06

 

Product Description

Commodity	Cold Drawing / Drawn Flat/ Square / Rectangular / Rectangle / Hexagonal / Special Shape Rods Bars
Standard	GB/T 3078-2019, GB/T 905-1994
Grades	Carbon steel	SAE 1018 , A36, SS400, S235JR, Q235, SAE 1020, S20C , 1.0402, 20GB, CK22,  SAE 1045 ,S45C, C45, CK45, EN8 ,1.1191
	Alloy steel	SAE 5120 , 20Cr, Scr 420H, 20Cr4, SAE 5140 , 40Cr,SCr440, 520M40,  SAE 4130 , 30CrMo, SCM430, SCM420, SAE 4140 , 42CrMo4, EN19, SCM440,  708A42, 708M40, SAE 4340, 40CrNiMoA,871M40 , SNCM439
Specification	Round Bar	5mm to 100mm
	Square bar	5*5mm to 120*120mm
	Flat bar	5*20mm to 20*100mm
	hex bar	5mm to 120mm
	hexagonal bar	5mm to 120mm (side to side)
Length	4-12m random length or as per request fixed length
Surface	Bright, or dark as per required
Packing	Wrapped by plastic clothes and steel strips
Delivery Condition	BK, BKW, GBK, NBK
Container Size	20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)
Application	hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry.
Advantages	greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability
MOQ	1 tons

mechanical behavior

 

Brand	Sample blank size/mm	mechanical property					Hardness of steel delivered
		Normalizing/quenching/ tempering	ób/MPa	ós/MPa	δ5(%)	Ψ(%)	AKu2/J
			≥				Unheat-treated steel	Annealed steel
1010	25	930-/-/	315	185	33	55	137
1020	25	910/-/-	4lO	245	25	55	156
1025	25	900/870/600	450	275	23	50	170
1030	25	880/860/600	490	295	21	50	179
1035	25	870/850/850	530	315	20	45	197
1040	25	860/840/60D	570	335	19	45	217	187
1045	25	850/840/600	600	355	16	40	229	197
1050	25	830/830/600	630	375	14	40	24l	207
1055	25	820/820/600	645	380	13	35	255	217
1060	25	810/-/-	675	400	12	35	255	229
1065	25	810/-/-	695	410	lO	30	255	229

The cold plasticity of the steel is general, annealing, normalizing than tempering is slightly better, with higher strength and better machinability, after appropriate heat treatment can obtain a certain toughness, plasticity and wear resistance, the material source is convenient. Suitable for hydrogen welding and argon arc welding, not very suitable for gas welding. Preheat is required before welding, and stress removal annealing should be carried out after welding. Normalizing can improve the cutting performance of blank with hardness less than 160HBS. After quenching and tempering treatment, the comprehensive mechanical properties of the steel should be optimized in other medium carbon structural steel, but the steel hardenability is low, the critical quench diameter in water is 12~17mm, and there is a cracking tendency in water quench. When the diameter is greater than 80mm, its mechanical properties are similar after tempering or normalizing, and high strength can be obtained after tempering for medium and small die parts.

Packaging	1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles
20 feet container contains dimension	Length under 6000mm
40 feet container contains dimension	Length under 12000mm
By bulk vessel	Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo

FAQ

1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.

2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;

3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.

5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese

6. How can we get your price?
A. We need the following information to quote for you:
1).  Product Name
2).  standard
3).  Material grade (chemical composition)
4).  dimension
5).  amount
6).  Special part drawin