| 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 |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 
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.
| Grade | C | Si | Mn | Cr | Ni | Mo | P | S | Cu |
| 20Mn2 | 0.17-0.24 | 0.17-0.37 | 1.40-1.80 | ≤0.30 | ≤0.30 | ≤0.10 | ≤0.030 | ≤0.030 | ≤0.30 |
| SMn420 | 0.17-0.23 | 0.15-0.35 | 1.20-1.50 | ≤0.35 | ≤0.25 | ≤0.030 | ≤0.030 | ≤0.30 | |
| 1524 | 0.19-0.25 | 0.15-0.30 | 1.35-1.65 | - | - | ≤0.040 | ≤0.050 | ≤0.20 | |
| 22Mn6 | 0.18-0.25 | 0.10-0.40 | 1.30-1.65 | ≤0.40 | ≤0.40 | ≤0.10 | ≤0.025 | ≤0.035 | ≤0.30 |
| 18Mn5 1.0436 |
0.15-0.20 | ≤0.40 | 0.90-1.60 | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.025 | ≤0.015 | ≤0.30 |
| 30Mn2 | 0.27-034 | 0.17-0.37 | 1.40-1.80 | ≤0.30 | ≤0.30 | ≤0.10 | ≤0.030 | ≤0.030 | ≤0.30 |
| SMn433 | 0.30-0.36 | 0.15-0.35 | 1.20-1.50 | ≤0.35 | ≤0.25 | - | ≤0.030 | ≤0.030 | ≤0.30 |
| 1330 | 0.28-0.33 | 0.15-0.35 | 1.60-1.90 | ≤0.20 | ≤0.25 | ≤0.60 | ≤0.035 | ≤0.040 | ≤0.35 |
| 28Mn6 | 0.25-0.32 | 0.10-0.40 | 1.30-1.65 | ≤0.40 | ≤0.40 | ≤0.10 | ≤0.025 | ≤0.035 | ≤0.30 |
| 1.1170 | 0.25-0.32 | ≤0.40 | 1.30-1.65 | ≤0.40 | ≤0.40 | ≤0.10 | ≤0.030 | ≤0.035 | ≤0.30 |
| GB | ISC | JIS | ASTM/AISI | UNS | ISO | DIN EN/DIN | W-Nr. | NF EN/NF | EN | Digital brand | GOST | BS EN/BS |
| 30Mn2 | A00302 | SMn433 | 1330 | G13300 | 28Mn6 | 30Mn5 | 1.1165 | 32M5 | 28Mn6 | 1.1170 | 30Г2 | 150M28 |
| 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... |
| thickness t mm |
Heat treatment or condition | tensile strength σb Mpa |
Yield point σs Mpa |
Elongation δ % |
hardness HBW |
Impact absorbed energy KV2 J |
| T=15 (sample size) | Quenching+tempering | ≥785 | ≥590 | ≥10 | ≤187 | ≥47 |
| Main features | |
| 20Mn2 | The properties of 20Mn2 and 20Cr with medium strength and small section size are similar, and the low-temperature impact toughness and weldability are better than those of 20Ct. High plasticity during cold deformation, good machinability, higher hardenability than corresponding carbon steel, overheating, decarburization sensitivity and temper brittleness during heat treatment |
| 30Mn2 | 30Mn2 is usually used after quenching and tempering treatment. It has high strength, good toughness, and excellent wear resistance. When manufacturing parts with small section size, it has good static strength and fatigue strength, good wire drawing, cold heading, and heat treatment process, medium machinability, and acceptable weldability. Generally, it does not make weldments. When welding is required, the parts should be preheated to above 200 ° C, with high hardenability, and small quenching deformation, However, it has overheating, decarburization sensitivity and temper brittleness |
| 35Mn2 | The carbon content is higher than that of 30Mn2, so it has higher strength and better wear resistance. The hardenability is also improved, but the plasticity is slightly decreased. During cold deformation, the plasticity is medium, the machinability is medium, the weldability is low, and there is white spot sensitivity, overheating tendency and temper brittleness tendency. Water cooling is easy to produce cracks, and it is generally used in quenched and tempered or normalized conditions |
| 40Mn2 | Medium carbon quenched and tempered manganese steel is superior to 40 steel in strength, plasticity and wear resistance. It has good heat treatment process and machinability, and poor weldability. When the carbon content is below *, it needs to be preheated to 100-425 ºC before welding. It has temper brittleness, overheating sensitivity, and water cooling is easy to produce cracks. It is usually used in quenched and tempered state |
|
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
|
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
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}