High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod

Model NO.
4130 SCM420/430 1.7218 25CrMo4 30CrMn
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
Reference Price
$ 468.00 - 612.00
Contact Us

Product Description

High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod
Product Description

In addition to iron and carbon, other alloy elements are added to alloy steel, which is called alloy steel. An iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements on the basis of ordinary carbon steel. According to the different added elements and adopting appropriate processing technology, special properties such as high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance and non-magnetism can be obtained.
The tempering stability of alloy steel is better than that of carbon steel. This is because alloy elements hinder the diffusion of atoms in the steel during tempering, and thus play a role in delaying the decomposition of martensite and resisting tempering softening at the same temperature. Carbide forming elements have a significant effect on delaying tempering softening. Although cobalt and silicon are non-carbide-forming elements, they have a strong retarding effect on the formation and growth of cementite crystal nucleus. Therefore, they also have the effect of delaying tempering softening

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
Item
Hard Chromed Rod
Induction Hardened Chromed
Nickel and Chrome Plating Bars
Tolerance
ISOf7
ISOf7
ISOf7
Roundness
Diameter tolerance / 2
diameter tolerance / 2
diameter tolerance / 2
Standard Length
-for Ø ≤ 60 mm: 5600 -6200mm
-for Ø≥60 mm: 5800 -7200mm  
Upon request: special lengths on all diameters
- for Ø ≤ 60 mm: 5600 - 6200 mm
- for Ø ≥ 60 mm: 5800 - 7200mm  
Upon request: special lengths on all diameters
Up to 6000 mm  

Upon request: special lengths on all diameters
Surface Roughness
Ra max. 0.20 µm  
(statistic average: 0.05-0.15 µm)
Ra max. 0.20 µm  
(statistic average: 0.05- 0.15 µm)
Ra max. 0.20 µm (statistic average: 0.05-0.15 µm)
Chrome Layer Thickness
min. 900 HV (0.1)
min. 900 HV (0.1)
min. 25 µm
Straightness
≤ Ø16 mm: max. 0.3 mm: 1000 mm
> Ø16 mm: max. 0.2 mm: 1000 mm
≤ Ø16 mm: max. 0.3 mm: 1000 mm
> Ø16 mm: max. 0.2 mm: 1000 mm
max.0.20 mm/1000 mm
High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod
mechanical behavior
Product form
Heat treatment or condition
Hardness
 HBW
 
 
 
 
Hot rolled steel plate (Baosteel)
hot-rolling
HV
≤300
annealing
HV
≤180
Water quenching 800~880 ºC
HRC
≥47
Oil quenching 830-890 ºC
HRC
≥45

High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod

Features and applications
4130 material is widely used in wellhead equipment and Christmas tree equipment because of its high strength, good low-temperature impact performance, resistance to hydrogen sulfide acid medium stress corrosion, and high cost performance. It is used to make shafts, gears, connectors and structural parts of mining machinery, engineering machinery, petroleum machinery, hydraulic pressure, machine tools, automobiles, lifting equipment, etc. It can be used to manufacture flared tee pipe joint, flared pipe joint sleeve, self-locking nut and other fasteners High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod
High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod
High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod

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
High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod High Quality 4130 Scm420/430 1.7218 25crmo4 30crmn Alloy Steel Round Bar 12mm 15mm 18mm Carbon Alloy Metal Steel Rod
FAQ

1. Who are we?
Our headquarter is located in Shandong, China. Since 2023, 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

 

Steel Round Bar

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