High Quality 1066 1572 65mn 70mn 65mn4 1033 1037 1039 1046 1062 Ck60 40mn4 Alloy Carbon Steel Price Carbon Steel Round Bar 5mm-100mm Diameter

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Black/Peeling/Polishing/Machining/Grinding/Turning
• Alloy: Alloy
• Model NO.: 1066 1572 65Mn 70Mn 65Mn4 1033 1037 1039 1046 1062
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel, Tool Steel
• Transport Package: Standard Packaging or Customized
• Specification: 100-12000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 72141000
• Production Capacity: 1000 Ton/Month

Product Description

Product Description

Medium carbon quenched and tempered manganese steel has high strength, wear resistance and hardenability. After quenching and tempering, it can obtain good comprehensive mechanical properties and is suitable for oil cooling and high temperature tempering. It is usually used in the quenched and tempered state, and can also be used in the normalized state if necessary. The machinability is acceptable, but the weldability is poor, the cold deformation plasticity is low, the heat treatment has the tendency of temper brittleness and overheating sensitivity, and water cooling is easy to produce cracks. Parts used for manufacturing under high stress and wear conditions are equivalent to 40Cr when used as parts with diameter ≤ 60mm; In automobile, tractor and general machinery manufacturing, it is used for universal joint shaft, axle, connecting rod cap, friction disc, worm, gear, gear shaft, tram and steam locomotive axle, heavy load frame and cold-drawn bolt and nut

chemical composition

Brand	Chemical composition (mass fraction) (%)
	C	Si	Mn	Cr		Ni	Cu
				≤
15Mn	O.12~O.18	O.17~O.37	O.70~1.00	O.25	O.30		0.25
20Mn	0.17~O.23	O.17~O.37	O.70~1.00	O.25	0.30		O.25
25Mn	O.22~O.29	0.17~0.37	O.70~1.00	O.25	O.30		O.25
30Mn	0.27~O.34	O.17~0.37	0.70~1.00	O.25	O.30		0.25
35Mn	O.32~O.39	O.17~O.37	O.70~1.00	0.25	O.30		O.25
40Mn	O.37~0.44	O.17~0.37	O.70~1.00	0.25	0.30		O.25
45Mn	0.42~0.50	0.17~O.37	0.70~1.00	O.25	O.30		O.25
50Mn/1053	O.48~0.56	O.17~O.37	O.70~1.00	0.25	0.30		0.25
60Mn/1061/1062	0.57~0.65	O.17~O.37	0.70~1.00	0.25	0.30		0.25
65Mn	0.62~0.70	0.17~O.37	O.90~1.20	O.25	0.30		0.25
70Mn	0.67~O.75	0.17~0.37	0.90~1.20	O.25	O.30		O.25

Product Parameters

Material Science:	Hot rolled/cold drawn/forged steel round steel
Process:	It is forged from vacuum degassed steel ingot.
Diameter:	25mm - 1000mm (optional)
Length:	1000mm-12000mm Straightness:3mm/M max(optional)
Process:	EAF+LF+VD+forging+heat treatment (optional)
Delivery conditions:	Hot forging+rough machining (black surface after Q/T)+double tempering.
Delivery time	15-25 days
Minimum order quantity:	5 tons
Heat treatment:	Normalizing/annealing/quenching/tempering (optional)
Technical data:	Chemical composition, physical properties and mechanical tests according to customer requirements
characteristic:	According to your requirements
Test:	Ultrasonic test according to SEP 1921-84 C/c and D/d (optional)
Tag:	Grade, heat resistant NO The length will be printed with the required color on each bar
Payment:	T T 30% in advance; The balance shall be paid against shipping documents or irrevocable letter of credit at sight before shipment
Terms of trade	FOB,C&F,EXW...

Mechanical properties

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
08F	25	930/-/-	295	175	35		60	13l
10F	25	930-/-/	315	185	33		55	137
15F	25	920/-/-	355	205	29		55	143
08	25	930/-/-	325	195	33		60	131
IO	25	930/-/-	335	205	3l		55	137
15	25	920/-/-	375	225	27		55	143
20	25	910/-/-	4lO	245	25		55	156
25	25	900/870/600	450	275	23		50	170
30	25	880/860/600	490	295	21		50	179
35	25	870/850/850	530	315	20		45	197
40	25	860/840/60D	570	335	19		45	217		187
45	25	850/840/600	600	355	16		40	229		197
50	25	830/830/600	630	375	14		40	24l		207
55	25	820/820/600	645	380	13		35	255		217
60	25	810/-/-	675	400	12		35	255		229
65	25	810/-/-	695	410	lO		30	255		229
70	25	790/-/-	715	420	9		30	269		229
75	sample	-/820/480	1080	880	7		30	285		24l
80	sample	-/820/480	1080	930	6		30	285		241
85	sample	-/820/480	1130	980	6		30	302		255
15Mn	25	920/-/-	410	245	26		55	163
20Mn	25	910/-/-	450	275	24		50	197
25Mn	25	900/870/600	490	295	22		50	207
30Mn	25	880/860/600	540	315	20		45	217		187
35Mn	25	870/850/600	560	335	18		45	229		197
40Mn	25	860/840/600	590	355	17		45	229		207
45Mn	25	850/840/600	620	375	15		40	241		217
50Mn	25	830/830/600	645	390	13		40	255		217
60Mn	25	810/-/-	695	410	11		35	269		229
65Mn	25	830/-/-	735	430	9		30	285		229
70Mn	25	790/-/-	785	450	8		30	285		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 drawing