High Quality Alloy Structural Steel 51CRV4 Sup10 6150 1.8509 41craimo7 2940 905m39 Hot Forged Structural Carbon Steel Round Bar

• Type: Steel Bar
• 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.: 51CrV4 SUP10 6150 1.8509 41CrAIMo7 2940 905M39
• 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: 84802000
• Production Capacity: 1000 Ton/Month

Product Description

About products

50CrVA has good mechanical and technological properties and high hardenability. The addition of vanadium refines the grain size of steel, reduces overheating sensitivity, improves strength and toughness, has high fatigue strength and high yield ratio. However, the weldability is poor and the cold deformation plasticity is low. It is a kind of higher grade spring, which is used as an important spring with large section and high load, as well as valve spring, piston spring and safety valve spring with working temperature<300 ºC. Generally, the supply specification of plates is 1.5~10.0MM, which is mostly in the annealed state, and more than 10~30mm is in the non-annealed state. The final heat treatment of medium carbon alloy spring steel is quenching and tempering. After heat treatment, the steel has good toughness, high proportion limit and strength limit, high fatigue strength, similar to the hardenability of 65Si2MnWA, high hardenability and low overheating sensitivity; When the service temperature of the part is 300 ºC, its elasticity can still be maintained. The machinability of steel is good, but the plasticity is low and the weldability is poor during cold deformation.

chemical composition

   

component	C	Si	Mn	P	S	Cr	Ni	Mo	V
minimum value	0.47	-	0.7	-	-	0.9	-	-	0.1
Maximum value	0.55	0.4	1.1	0.025	0.025	1.2	0.4	0.1	0.25

Approximate comparison table

GB	ISC	CNS	JIS	KS	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.
50CrVA	A23503	SUP10	SUP10	SPS6	6150	G61500	51CrV4	51CrV4	1.8159

 

Product Description

Category	Grade	Diameter
High speed steel	6542,M2,M35,M42	1mm-600mm
Mold steel	Cr12,Cr12MoV,Cr12Mo1V1,D2,SKD11,DC53	1mm-600mm
Carbon structure steel	Q195, Q215, Q235, Q275	1mm-600mm
Low alloy high strength structure steel	Q295, Q345, Q390, Q420, Q460	1mm-600mm
Prime Carbon structure steel	10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45	1mm-600mm
Alloy structure steel	30Mn2, 40Mn2, 27SiMn, 42Crmo,20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi,20MnVB, 20MnTiB, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, 45MnV,	1mm-600mm
Spring Steel	65Mn, 60Si2Mn, 50CrVA	1mm-600mm
Bearing Steel	GCr15, GCr15GD,55SiMoV	1mm-600mm
Structural steels subject to end-quench hardenability requirements	20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b, 35MnBM, 40MnB,45MnV.	1mm-600mm

 

Mechanical properties

condition	Heat treatment or condition	tensile strength σb  Mpa	Yield point σs  Mpa	Elongation δ  %	hardnessHBW	Impact absorbed energy KV2  J
Bars, flats, forgings;16≤d≤40	Quenching and tempering (+QT)	950~1150	≥750	≥11	-	≥25
Bars, flats, forgings; 40	Quenching and tempering (+QT)	900~1100	≥720	≥13	-	≥25
Bars, flats, forgings; 100	Quenching and tempering (+QT)	850~1050	≥670	≥14	-	≥30
Bars, flats, forgings; 160	Quenching and tempering (+QT)	800~1000	≥625	≥15	-	≥30
Bar, rod, flat, forging, semi-finished products	Softening annealing (+A)	-	-	-	≤248	-
	nitridation	-	-	-	HV* 950	-

Features and applications

Good mechanical and technological properties, high hardenability. The addition of vanadium refines the grain size of steel, reduces overheating sensitivity, improves strength and toughness, and has high fatigue strength and yield ratio, but poor weldability and low cold deformation plasticity. It is a kind of higher grade spring, which is used as a high load important spring with large section and valve spring, piston spring, safety valve spring, etc. with working temperature<300 ºC.

Product Parameters

 

GRADE	SIZE(MM)	GRADE	SIZE(MM)
8#-10#	∮16-290	65Mn	∮40-300
15#	∮14-150	45Mn2	∮18-75
20#	∮8-480	60Si2Mn	∮16-150
35#	∮8-480	20CrMnTi	∮10-480
45#	∮6.5-480	20crmnTiB	∮16-75
Q235B	∮6.5-180	GCr15	∮16-400
40Cr	∮8-480	ML35	∮8-150
20Cr	∮10-480	T8-T13	∮8-480
42CrMo	∮12-480	Cr12	∮16-300
35CrMo	∮12-480	Cr12MoV	∮16-300
20CrMo	∮12-300	3Cr2W8V	∮16-300
38CrMoAL	∮20-300	45Cr50Cr	∮20-300
5CrMnMo	∮20-450	20CrMnMo	∮20-300
16Mn(Q345B)	∮14-365	40Mn2	∮28-60
50Mn	∮40-200	35Cr	∮55
15CrMo	∮20-75	15Mn	∮32∮170
25#	∮16-280	40CrMnMo	∮80-∮160
YF45MnV	∮28-80	20CrMnMo	∮20-300
30#	∮6.5-480	27 SiMn	∮20-350
30Crmo	∮28	Crwmn	∮20-300
30CrmnTi	∮16-300	H13(4Cr5MoSiVi)	∮20-300
60#	∮210.∮260	40crNimo	∮20-400

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