ASTM/AISI 5140 G51400/SCR420/41cr4/1.7035/40cr Square Flat Hexagonal Alloy Steel Round Bars

• 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/Oiling or Galvanizing/ etc
• Model NO.: ASTM/AISI 5140 G51400/SCr420/41Cr4/1.7035/40Cr
• 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
• Date of Delivery: 7-20days
• Service Ability: ODM/OEM
• Tolerance: -0.1/+0.1
• Alloy: Alloy
• 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

Cold drawn square steel refers to cold drawn steel forged in a square shape
Cold drawn square steel refers to square cold drawn steel,
Cold drawn steel is a kind of steel that is forcibly stretched under normal temperature conditions with a tensile stress that exceeds the original yield point strength of the steel bar, causing plastic deformation of the steel bar to achieve the goal of improving the yield point strength of the steel bar and saving steel.
Cold drawn steel refers to the use of cold extrusion technology to pull various high-precision, smooth surface round steel, square steel, flat steel, hexagonal steel, and other special-shaped steel through precise molds.

chemical composition

 

composition	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
5140/40Cr/SCr440/SCr440H/41Cr4/ 1.7035/41Cr4	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/SCM415/15CrMo5/1.7262	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/SCM420/4118/18CrMo4/20CrMo5/ 1.7264/1.7243	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/4130/SCM420/25CrMo4/1.7218	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
4140/4142/42CrMo/SCM440/42CrMo4/ 1.7225/42CrMoS4	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
4150	0.48-0.53	0.15-0.35	0.75-1	≤0.035	≤0.04	0.8-1.1	≤0.25	≤0.25	0.15-0.25
4340/34CrNi3Mo/SNCM447/ 36CrNiMo6/1.6582	0.38-0.43	0.15-0.35	0.6-0..85	≤0.035	≤0.04	0.7-0.9	1.65-2	-	0.2-0.3
5120/20Cr/SCr420 /SCr420H /20Cr4/1.7027/20CrMn/20CrMnTi	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 Parameters

Theoretical weight table of square steel
Side length (mm)	Cross sectional area (cm2)	Theoretical weight (kg/m)	Side length (mm)	Cross sectional area (cm2)	Theoretical weight (kg/m)
5mm	0.25	0.196	30mm	9.00	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	1.00	0.785	40mm	16.00	12.56
11mm	1.21	0.95	42mm	17.64	13.85
12mm	1.44	1.13	45mm	20.25	15.90
13mm	1.69	1.33	48mm	23.04	18.09
14mm	1.96	1.54	50mm	25.00	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	36.00	28.26
18mm	3.24	2.54	63mm	39.69	31.16
19mm	3.61	2.82	65mm	42.25	33.17
20mm	4.00	3.14	70mm	49.00	38.49
21mm	4.41	3.46	75mm	56.25	44.16
22mm	4.84	3.80	80mm	64.00	50.24
24mm	5.76	4.52	85mm	72.25	56.72
25mm	6.25	4.91	90mm	81.00	63.59
26mm	6.76	5.30	95mm	90.25	70.85
28mm	7.84	6.15	100mm	100.00	78.50

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