Entity Manufacturer Forging Spring Steel Round Bar/ Alloy Steel 28simnb A76282 40simnvbe A77552 a 77406 55simnvb Hot Rolled for Machining

• Type: Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Carbon Steel
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Blace/Polishing/Oiling or Galvanizing/ etc
• Model NO.: 28SiMnB a76282 40SiMnVBE A77552 A 77406 55SiMnVB
• 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

There are many kinds of alloy steels, which are generally divided into low alloy steels (content<5%), medium alloy steels (content 5%~10%) and high alloy steels (content>10%) according to the content of alloy elements; It is divided into high-quality alloy steel and special alloy steel according to quality; According to characteristics and applications, it can also be divided into alloy structural steel, stainless steel, acid resistant steel, wear-resistant steel, heat-resistant steel, alloy tool steel, rolling bearing steel, alloy spring steel and special performance steel (such as soft magnetic steel, permanent magnetic steel, non magnetic steel

chemical composition

 

Grade	C	Si	Mn	P	S	Cr	Ni	Cu	V
minimum value	0.52	0.7	1	-	-	-	-	-	0.08
Maximum value	0.6	1	1.3	0.035	0.035	0.35	0.35	0.25	0.05

 

Product Description

Production Range	Outer Diameter:6-530mm (0.24 inch - 21.18 inch)
	Wall Thickness:0.8-200mm (0.03 inch - 7.89 inch)
Material / Grade	Carbon Steel: GB/T 3094: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C
	Alloy Steel: GB/T 3094: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420
Tolerance	Can be customized according to customer's requirements
Technique	Cold Drawn / Cold Rolled
Shape	Triangle, Hexagon, Square, Rectangle, Octagon, Lemon Pipe and Others can be customized
Further Processing for Steel Tubes	Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

Mechanical properties

Heat treatment or condition	tensile strength σb  Mpa	Yield point σs  Mpa	Elongation δ  %	Reduction of area ψ  %	hardness  HBW
Quenching and tempering	≥1375	≥1225	≥5	≥30	-
Hot rolled (WHR)	-	-	-	-	≤321
The mechanical properties in the table are applicable to bars with diameter or side length no more than 80mm and flat steel with thickness no more than 40mm. For bars with diameter or side length greater than 80mm and flat steel with thickness greater than 40mm, the elongation after fracture and reduction of area are allowed to decrease by 1% (absolute value) and 5% (absolute value) respectively compared with those specified in the table

 

Application

After heat treatment or cold hardening has high strength and elasticity, cold deformation plasticity is low, hardenability is not good, the ability to withstand dynamic load and fatigue load is low, generally using oil quenching, large section parts using water cooling + oil quenching, or normalizing treatment Widely used, mostly used in the working temperature is not high, the size of the spring, or not too important larger size of the spring, such as cars, tractors, railway vehicles and general machinery with the spring

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