Contact Platform Support
Help CenterAlloy Tool Steel 5crw2si Round Steel, 4crw2si Tool Steel Bars, Long Steel With Diameters From 16 to 200 and Complete Specifications
Related Products
-
Mold Steel H13r Round Steel, Heat-resistant H13esr Electroslag Round Bar, Can be Cut and Sold Retail From 16 to 600, Guaranteed for Flaw DetectionUS$ 1.46 - 1.77MOQ: 10 Kilograms -
National Standard High-quality Carbon Tool Steel T10a Round Steel, T8a Round Bar. High Hardness and Good Wear Resistance. Available in Sizes From 14 to 280mm.US$ 1.46 - 1.77MOQ: 10 Kilograms
-
15crni3mov Alloy Steel Bar With Low-temperature Toughness, 15crni3mova Round Steel Resistant to Seawater Corrosion, Diameter 16 - 300US$ 1.46 - 1.77MOQ: 10 Kilograms
-
High-toughness 37simn2mov Low-temperature-resistant Round Steel, High-strength 30cr2ni2moa Alloy Steel Bars, Available for Cutting and RetailUS$ 1.46 - 1.77MOQ: 10 Kilograms
-
High-strength Heat-resistant A335p22 Alloy Round Steel, Corrosion-resistant Sa213 T22 Round Bar and Forged Round, With a Complete Range of SpecificationsUS$ 1.46 - 1.77MOQ: 10 Kilograms
Industry pain points and solutions: In the manufacturing fields of stamping dies, shearing cutters, impact-resistant tools, etc., traditional tool steels often face core pain points such as insufficient toughness leading to early cracking, poor wear resistance shortening the service life, and large heat treatment deformation affecting dimensional accuracy. Especially under high-frequency impact or heavy-load working conditions, the fatigue life of the steel directly determines production efficiency and costs. Liaocheng Jincheng Yangming Special Steel Co., Ltd. has optimized the composition and innovated the process of 5CrW2Si and 4CrW2Si alloy tool steels based on more than ten years of special steel R & D experience to address these industry chronic problems. By precisely controlling the ratio of carbon, chromium, tungsten, and silicon, and combining multi-directional forging and spheroidizing annealing processes, the impact toughness and anti-fatigue performance of the steel have been significantly improved, and the quenching deformation rate has been reduced. The company is located in Liaocheng City, Shandong Province, focusing on wholesale and customized production. Its products are widely used in high-end manufacturing fields such as petroleum, chemical, shipbuilding, nuclear engineering, aerospace, mining, textile, and construction machinery. We adhere to the principles of seeking truth from facts and honesty, and use technology to drive the solution of customers' actual problems. We ensure that each batch of round steel undergoes strict flaw detection and dimensional inspection from steelmaking to the finished product, providing users with high-stability tool steel bars.
Working mechanism and process characteristics: 5CrW2Si and 4CrW2Si belong to the impact-resistant type of alloy tool steels. Their working mechanism is based on the reasonable distribution of carbides and tempering stability. The tungsten element in the steel forms high-hardness carbides (WC, W2C), significantly improving the wear resistance and red hardness of the steel; the chromium element enhances hardenability and corrosion resistance; the silicon element strengthens the ferrite matrix and improves tempering resistance. Pure molten steel is obtained through electric furnace smelting (LF refining + VD degassing), and then the carbide segregation is broken through multi-directional forging. Finally, it is delivered in the spheroidizing annealing state to ensure stable performance in subsequent machining and heat treatment. The diameter range covers from 16mm to 200mm, and black or peeled surfaces can be provided to meet the requirements of different die machining allowances.
Core product features:
- Excellent impact toughness: Compared with common chromium-tungsten tool steels, 5CrW2Si/4CrW2Si has a moderate carbon content (0.4%~0.5%) and a tungsten content of about 2%, which endows it with excellent impact resistance while maintaining high hardness. It is suitable for manufacturing components such as punches, trimming dies, and shear blades that bear heavy blows.
- Small heat treatment deformation: The optimized alloy ratio controls the volume change rate after quenching to less than 0.1%, reducing subsequent grinding costs, and is especially suitable for precision die processing.
- Balance between wear resistance and red hardness: The tungsten element endows the steel with the ability to maintain hardness at high temperatures below 600℃, extending the service life of the mold by over 30% under continuous stamping or hot shearing conditions.
- Complete specifications and flexible customization: We supply round steel in a full range of diameters from 16 to 200mm. The length can be cut to the customer's requirements. We support delivery with peeled or black skin to meet different processing needs.
- Strict quality control system: Chemical composition analysis, ultrasonic flaw detection, and hardness testing are carried out on each batch of steel, and a material certificate is issued to ensure batch stability.
Technical specifications and typical parameters:
| Grade | Chemical composition (%) | Annealed hardness (HB) | Quenching temperature (℃) | Quenching medium | Tempered hardness (HRC) |
| 5CrW2Si | C 0.45~0.55, Si 0.5~0.8, Mn ≤0.40, Cr 1.0~1.3, W 2.0~2.5 | ≤207 | 850~870 | Oil quenching or salt bath | 58~62 |
| 4CrW2Si | C 0.35~0.45, Si 0.5~0.8, Mn ≤0.40, Cr 1.0~1.3, W 2.0~2.5 | ≤207 | 850~870 | Oil quenching or salt bath | 55~59 |
| Note:The above are typical reference values. The specific values shall be subject to the actual material report. The diameter tolerance shall comply with the GB/T 702 standard. Peeled or ground surfaces can be provided, with a surface roughness of Ra ≤ 1.6μm. | |||||
Application scenarios: 5CrW2Si is commonly used in the manufacture of dies under high impact loads, such as punching punches, trimming dies, cold heading dies, hot shear blades, steel nail punches, etc. Due to its slightly lower carbon content, 4CrW2Si has better toughness and is suitable for manufacturing large dies subject to high impact, such as ejector pins for die - casting dies and impact - resistant fixtures. In the fields of petroleum, chemical, aerospace, etc., it can also be used to make key components such as heat - resistant and wear - resistant bolts and valve stems.
Trust endorsement and company advantages: Liaocheng Jincheng Yangming Special Steel Co., Ltd., as an enterprise specializing in the wholesale and customized production of special steel, has been providing stable supplies to industries such as petroleum, chemical, shipping, nuclear engineering, aerospace, mining, textile, and construction machinery for many years. We adhere to the principles of seeking truth from facts and honesty, and have accumulated a good reputation among our customers. All materials have undergone strict incoming inspection, and third - party test reports are available upon request. The company always keeps in stock mainstream specifications with diameters ranging from 16 to 200mm and can quickly respond to delivery dates. Compared with imported materials, we can help customers reduce procurement costs by more than 15% while ensuring the same performance.
Consultation advice: If you are looking for tool steel bars with high impact toughness, good wear resistance, and heat - treatment stability, 5CrW2Si and 4CrW2Si are reliable choices verified by the market. It is recommended that you select the corresponding grade according to the actual working load of the die: choose 5CrW2Si for heavy - impact and wear - resistant requirements; choose 4CrW2Si for extremely high - impact and higher toughness requirements. We offer free technical consultation and sample testing. Welcome to call or leave a message to communicate your specific needs, and we can match the most economical specifications and surface conditions for you.
FAQ:
-
Q: What are the main differences between 5CrW2Si and 4CrW2Si? How to choose?
A: The main difference lies in the carbon content. 5CrW2Si contains 0.45 - 0.55% carbon. After quenching, it has higher hardness (58 - 62HRC) and better wear resistance, suitable for heavy - load punches. 4CrW2Si contains 0.35 - 0.45% carbon and has better impact toughness (hardness 55 - 59HRC), suitable for dies subject to severe impact, such as large trimming dies. It is recommended to choose according to the failure mode of the die: choose the former if wear is the main issue, and the latter if cracking is the main issue. -
Q: What is the delivery state of the round steel? Can it be directly processed?
Answer: The standard delivery state is spheroidizing annealing state, with hardness ≤207HB, which is convenient for machining such as turning, milling and grinding. Users can directly cut the material for rough machining, and then perform the final heat treatment (quenching + tempering) to obtain the required hardness. If pre-hardened state (such as quenching and tempering) is required, it can be customized separately. -
Question: What is the minimum cutting length of the round steel with a diameter of 16mm? Is there a length limit?
Answer: The conventional supply length is 4 - 8 meters, and it can also be cut to length according to the user's requirements. The minimum cutting length is 1 meter for ordering. For small diameters ≤20mm, it is recommended to purchase the whole bar to reduce costs. Coils or straight bars can be provided for bulk orders. Please contact the sales department for details. -
Question: How much is the heat treatment deformation of this material? How to control it?
Answer: At the recommended quenching temperature (850 - 870℃, oil quenching), the axial deformation of round steel within 100mm in diameter is usually ≤0.8% (in the length direction), and the radial change is ≤0.3%. To reduce deformation, it is recommended to preheat at 500 - 600℃ once, then raise the temperature to the quenching temperature, and adopt multiple tempering (≥2 times). Liaocheng Jincheng Yangming Special Steel Co., Ltd. can provide heat treatment process recommendation cards. -
Question: What is the difference between the black skin surface and the peeled surface? What occasions are they suitable for respectively?
Answer: The black skin surface retains the hot-rolled oxide scale, with a relatively large dimensional allowance (about 1 - 2mm). It is suitable for rough machining of mold blanks and is relatively cheap. The peeled surface has the oxide layer removed by machining, with high dimensional accuracy (tolerance ±0.3mm) and a smooth surface. It can be used for direct turning of finished products, especially suitable for precision molds or workpieces that do not require large cutting in the subsequent process. -
Question: Can 5CrW2Si replace Cr12MoV for stamping dies?
Answer: Under the working condition of strong impact (such as stamping thick plates and rivets), the impact toughness of 5CrW2Si is far better than that of Cr12MoV (6 - 7 times), but the wear resistance is slightly lower. If the main failure mode of the mold is chipping or cracking, 5CrW2Si can be used as a replacement; if the main failure mode is wear, it is recommended to still choose Cr12MoV or a steel grade with higher wear resistance. It is best to conduct comparative tests according to the actual working conditions. -
Question: Can your company provide the material certificate? Does it support third-party testing?
Answer: Each batch of goods is provided with a material certificate (sealed) including chemical composition, hardness, flaw detection, etc. If third-party authoritative testing (such as SGS, BV) is required, we can assist the customer in sending the sample for testing at the customer's own expense. We guarantee the consistency between the provided parameters and the actual product. If the test results do not match, a full refund or replacement can be made. -
Question: Is there a price discount for bulk purchases? What is the minimum order quantity?
Answer: The minimum order quantity for conventional diameter specifications (16 - 100mm) is 1 ton, and step prices are available for orders above this quantity. For diameters over 100mm or special lengths, negotiation is possible. Long-term cooperative customers can apply for an annual framework contract to lock in the price. Please contact the sales department for the specific quotation, which will be calculated based on the comprehensive cost of the day.
Send Inquiry to This Supplier
You May Also Like
-
Jinchengyangming Fatigue-resistant 35crmova Round Steel, High-toughness 35crmov Alloy Steel Bar, Sold by One Piece. InterruptedUS$ 1.46 - 1.77MOQ: 10 Kilograms
-
American Standard Astm A350 Lf5 Alloy Round Steel, Low-temperature Resistant A350 Lf6 Round Bar Forgings, Cut and Sold Retail From 55 to 200US$ 1.46 - 1.77MOQ: 10 Kilograms
-
High-toughness 1.5752 Carburized Round Steel, 14nicr14 Round Steel for Machining, European Standard 15nicr13 Alloy Steel BarUS$ 1.46 - 1.77MOQ: 10 Kilograms
-
09crcusb Low - Alloy Round Steel Resistant to Sulfuric Acid Dew Point, Low - Temperature nd Steel Rod for Power Plant Boilers, Large - Sized Reformed Small RoundsUS$ 1.46 - 1.77MOQ: 10 Kilograms
-
High-strength Medium-carbon Alloy Structural Round Steel of 40crmnmoa, Alloy Round Bar for Heavy-duty Gear Shafts of 20crmnmoaUS$ 1.46 - 1.77MOQ: 10 Kilograms
-
Valve Forging A350 Lf2/lf3/lf5/lf6 Low Alloy Round Steel, Low Temperature Alloy Round Bar, Quality Assurance With GoodsUS$ 1.46 - 1.62MOQ: 10 Kilograms
-
Low-alloy High-strength 39nicrmo3 Chromium-nickel-molybdenum Alloy Steel, German Standard 1.6510 Steel for Aerospace Engine ShaftsUS$ 1.46 - 1.62MOQ: 10 Kilograms
-
High-hardness Roll Steel 85cr3mo Round Steel, High-wear-resistant 85cr5mo Alloy Steel Bar, Non-standard Customization, Fast DeliveryUS$ 1.46 - 1.62MOQ: 10 Kilograms
-
European Standard High-strength 36nicrmo16 Alloy Round Steel, 36crnimo4 Alloy Round Bar With Low-temperature Impact Resistance, CuttingUS$ 1.46 - 1.62MOQ: 10 Kilograms
-
Free-cutting Alloy 16mncrs5 Carburized Round Steel, German Standard 1.7139 Steel Bar, the Main Steel for Manufacturing Gear PartsUS$ 1.46 - 1.62MOQ: 10 Kilograms
