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25CrMo4
Qilu
Product Description
25CrMo4 Alloy Forged Steel Bar
1: 25CrMo4 Steel Introduction
25CrMo4 is a commonly used high-strength alloy steel with excellent mechanical properties and heat treatment properties.25CrMo4 has excellent mechanical properties, including high strength, high toughness and good heat resistance. Its tensile strength is 1000-1200MPa, yield strength is 850-950MPa, and elongation is 10-15%. In addition, 25CrMo4 maintains good strength and toughness at high temperatures and is suitable for high temperature working environments.
25CrMo4 Steel Stock in Warehouse
2: 25CrMo4 Quality Standard
25CrMo4 steel according to EN10083.
3: 25CrMo4 Steel Equivalent
| Country | British | USA | Japan | BS |
| Standard | BS 970 | ASTM A29 | JIS G4105 | EN10083 |
| Grade | 708A25/708M25 | 4130 | SCM430 | 25CrMo4/1.7218 |
4: 25CrMo4 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.035 | 0.040 | 0.80-1.10 | 0.15-0.25 |
| 25CrMo4 | 0.22-0.29 | 0.40 | 0.60-0.90 | 0.025 | 0.035 | 0.90-1.20 | 0.15-0.30 |
| SCM430 | 0.28-0.33 | 0.15-0.35 | 0.60-0.85 | 0.030 | 0.030 | 0.90-1.20 | 0.15-0.30 |
5: 25CrMo4 Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment will cause different mechanical properties, for example, normalized, tempered, QT. If you want to know the properties, please kindly contact the salesman.
6: Qilu Company Profile
Hunan Qilu was engaged in steel exporting since 2008 year, the former was the sales company for Qilu Special Steel co.,ltd which was founded in 1986 year. Now Hunan Qilu Metal is one of most professional steel manufacturer and exporter in China. We already exported steel material to Germany, UK, Ireland, Greece, Italy, Poland,Belgium, Estonia, Latvia, Spain, France, Netherlands, Portugal, Czech republic, Finland, Russia, Belarus, Canada, Mexico, Brazil, Chile, Colombia, Peru, Argentina, Venezuela, Thailand, Indonesia, Vietnam, Singapore, Malaysia, Philippines, UAE, South Africa, Zambia, Australia etc.
7: Production Equipment
The company owns advanced special steel smelting facilities and forging processing equipment, the main steel-making equipment include 2 set of 50t and 25t ultra-high power electric arc furnaces, 2 set of 60t and 30t LF refining furnaces, 2 set of 60t and 30t vacuum degassing refining furnace. 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipment mainly include:3 sets of 3t 5t and 8t electro-hydraulic hammers, 3 sets of high-speed forging units of 1600t, 2000t and 4500t respectively.
8: Our Company Certificate
We already passed ISO 9000 : 2015 certificate of quality system, and we could supply steel forging material with all kinds of Classification Society Certification, such as ABS, ,DNV, BV, CCS etc. We also supplied steel material to oil industry with API certificate, such as API20B, API6A etc.
9: Stock&Warehouse
Besides forging material, we also supply hot rolled material from Dongbei special steel, Tiangong, Changcheng special steel, Lihuai Special Steel, Laisteel, Juneng steel, Yongsteel, Xinxin steel, Shijiazhuang steel etc. We have two warehouses for hot rolled material. Further processing such as heating treatment, rough machining and milled are also provided by us.
10: 25CrMo4 Steel Overviews
Size | Round | Dia 6-1200mm |
Plate/Flat/Block | Thickness | |
Width | ||
Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
Delivery condition | Forged; Hot rolled; Cold drawn | |
Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
Payment terms | T/T;L/C;/Money gram/ Paypal | |
Trade terms | FOB; CIF; C&F; etc.. | |
Delivery time | 30-45 days | |
11: 25CrMo4 Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
12: Packing& Delivery
For the delivery, we will choose LCL, FCL and Bulk carrier according to order quantity. Usually if the quantity is less than 10tons, we will recommend LCL. If the quantity is more than 100tons, we will recommend bulk carrier. Usually FCL will be the most common for delivery.
In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services. Such as pallet, wooden box, package with woven bag etc.
13: 25CrMo4 Steel Heat Treatment
Annealing
The material is heated to 800-850°C and then cooled in air to remove internal stresses.
Normalizing
Heating the material to 900-950℃ and then cooling it to room temperature in water or oil to improve the hardness and strength of the material.
Quenching
Heating the material to 940-980°C and then cooling it rapidly to room temperature to maximize hardness and strength.
14: 25CrMo4 Steel Application
25CrMo4 is an alloy steel with a wide range of applications, commonly used in the manufacture of high-strength bolts, bearings and other parts. Its excellent mechanical properties and heat treatment properties make it widely used in aerospace, petrochemical, automobile manufacturing and other fields. At the same time, 25CrMo4 also has good weldability and can be connected with other materials through welding process.
15: Delivery Condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed or QT, black surface or rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed or QT, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed or QT, black surface.
