1042 1045 Gr. 1043/S45c/C45/1.0503 Cold-Drawn Carbon Steel/Alloy Steel Free-Cutting Hexagonal Square Steel Bar

Product Description

About products

Medium carbon quenched and tempered structural steel is commonly used. "This steel has a general cold plasticity, slightly better during annealing and normalizing than during quenching and tempering, and has higher strength and better machinability. After proper heat treatment, it can obtain a certain degree of toughness, plasticity, and wear resistance, with convenient material sources.". Suitable for hydrogen welding and argon arc welding, not suitable for gas welding. Preheating is required before welding, and stress relieving annealing should be performed after welding. Normalizing can improve the cutting performance of blanks with hardness less than 160HBS. After quenching and tempering, the comprehensive mechanical properties of this steel are better than those of other medium carbon structural steels, but its hardenability is relatively low, with a critical hardenability diameter of 12 to 17 mm in water, and there is a tendency for cracking during water quenching. When the diameter is greater than 80mm, its mechanical properties are similar after quenching and tempering or normalizing. High strength and toughness can be obtained by quenching and tempering medium and small mold parts. Able to make rivet core with break out core

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

product	Steel square bar/bar
grade	A36,SS400,Q235,Q345,1020,1045
standard	ASME, ASTM, EN, BS, GB, DIN, JIS, etc
technology	Cold drawing and hot rolling
surface	Annealed and pickled, bright, polished, HL, black
measurement	Round rod: diameter:3mm~800mm square bar:  5x5mm - 200x200mm Flat rod:  20x2mm - 200x20mm Hexagonal bar:  8mm - 200mm Angle rod:  20x20x2mm - 200x200x15mm
pack	Bundle packaging, export standard packaging or according to customer requirements
delivery time	7-15 days or according to the order quantity or negotiation
Minimum order quantity	1ton

mechanical behavior

		Brand	Sample blank size/mm	mechanical property					Hardness of steel delivered HBSl0 / 300 ≤
				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

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