Prosaic Steel and Alloy is one of the well-known exporter and Distributor of 25CrMo4 Round Bars, engineering alloy steel containing chromium and molybdenum. It falls in a class of low alloy steel. EN 10083-3 25CrMo4 Bars which contains 1%Cr and 0.2%Mo as strengthening alloy elements. it offers good strength,toughness, corrosion resistance and machinability. Compared with AISI 4140,It has lower carbon,0.28-0.33%,so it can be welded easily. AISI 4130 is commonly supplied in the hardened and tempered condition with a hardness range 207-235HB.Chromoly is more brittle than mild steel. Still, it is very useful in a wide array of applications. Due to its low carbon content, it can be easily welded using both TIG welding and MIG welding.
EN 10083-3 25CrMo4 Round Bars are widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears, adapters, Arbors, Axle Shafts, Bolts, Crankshafts, Connection Rods, Chuck Bodies, Collets, Conveyor Pins & Rolls, Ejector Pins, Forks, Gears, Guide Rods, Hydraulic Shafts & Parts, Lathe Spindles, Logging Parts, Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pins Various, Pinions, Pump Shafts, Rams, Sockets, Spindles, Sprockets, Studs, Tool Holders, Torsion Bars, Worms etc.. and other applications.
Form | : | Cold Rolled, Hot Rolled and Forged |
Specifications and Grades | : | SAE 4130, AISI 4130, ASTM A29 4130, ASME A29 4130, ASTM A331 4130 (Cold Finish), SCM 430, UNS G41300, AS 1444-1996-4130,DIN 17212 W.Nr 1.7218 Type 25CrMo4, DIN 17200-1654 W.Nr 1.7218 Type 25CrMo4, JIS G 4105 SCM430 |
25CrMo4 Bar Outer Diameter Range |
: | 5mm to 500mm Dia in 100mm to 6000mm Length |
SCM430 Bar Length |
: | 100mm to 6000mm Length or Customised as per Client |
Finish | : | Black, Forged, Bright Polished, Rough Turned, Machined |
Other Shapes Available | : | Round, Square, Hex (A/F), Flat, Rectangle, Billet, Ingot, Forging Etc. |
High Quality | : |
|
Standard | Grade | C | Si | Mn | P | S | Cr | Mo |
AISI 4130 | SAE 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.035 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
EN10083 | 25CrMo4 / 1.7218 | 0.22-0.29 | ≤0.4 | 0.6-0.9 | ≤0.025 | ≤0.035 | 0.9-1.2 | 0.15-0.3 |
ASTM A29 | 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.035 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
JIS G4105 | SCM430 | 0.28-0.33 | 0.15-0.35 | 0.6-0.85 | ≤0.035 | ≤0.04 | 0.9-1.2 | 0.15-0.3 |
GB 3077 | 30CrMo | 0.26-0.33 | 0.17-0.37 | 0.4-0.7 | ≤0.03 | ≤0.03 | 0.8-1.1 | 0.15-0.25 |
Density g/cm3 | 7.85 |
Melting point °C | 1432 |
Poisson's ratio | 0.27-0.30 |
Machinability (AISI 1212 as 100% machinability) | 70% |
Specific Gravity | 7.8 |
Thermal conductivity W/(m.K) | 46 |
Modulus of Elasticity Tension | 29 |
- | Tensile Strength Mpa | Yield Strength Mpa | Elongation % | Hardness HBW | Impact Charpy-V, -18ºC,J |
60K | ≥ 586 | ≥ 414 | ≥ 18 | 174-237 | ≥ 42 |
75K | ≥ 655 | ≥ 517 | ≥ 17 | 197-235 | ≥ 42 |
Supply Form | Size(mm) | Process | Tolerance | |
Round |
Φ6-Φ100 | Cold Drawn | Bright/Black | Best H11 |
Φ16-Φ350 |
Hot Rolled |
Black | -0/+1mm | |
Peeled/ground | Best H11 | |||
Φ90-Φ1000 |
Hot Forged |
Black | -0/+5mm | |
Rough Turned | -0/+3mm | |||
Flat/Square/Block |
Thickness :120-800 | Hot Forged |
Black | -0/+8mm |
Width:120-1500 |
Rough Machined | -0/+3mm |
Forging temperature of AISI 4130 steel should be carried out between 950℃-1200℃,The lower the forging-ending temperature ,the finer the grain size .Hold suitable time for the steel to be uinformly heated before forge, but don’t forge below 950℃.AISI 4130 steel should be cooled as slowly as possible after forged.
AISI 4130 steel can be annealed to relieve stress after forging ,and obtain a good structure suitable for machining,Annealing temperature should be carried out between 800℃-850℃, hold suitable time for the steel to be heated uniformly. Cool slowly in the furnace.
4130 NormalizingNormalizing is used to refine the structure of forgings that might have cooled non-uniformly after forged,and considered as a conditioning treatment before final heat treatment.Normalizing temperature for AISI 4130 steel should be carried out between 880℃-900℃. hold suitable time for the steel to be uniformly heated to complete the ferrite to austenite transformation.Cool in still air.
4130 TemperingTempering is usually carried out to relieve stresses from the hardening process, and will optimize hardness and mechanical properties. The actual tempering temperature will be chosen to meet the required properties.Heat the AISI 4130 carefully to a suitable temperature ,usually between 400℃-570℃, soak at the temperature for 2 hours per 25mm of ruling section, then cool in air.The lower the tempering temperature the greater the strength. However, Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
Hardening of 25CrMo4 Round BarThis heat treatment will obtain martensite structure after quenched,it will increase the surface hardness and strength.AISI 4130 steel should be carried out between 870℃-890℃, hold suitable time for the steel to be thoroughly heated, then quench in oil, or water.Tempering should be followed immediately after quenched.
25CrMo4 Rods Test Certificates
We provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.
Material Testing:
We at Prosaic Steel and Alloy ensure that all our materials go through strict quality tests before dispatching them to our clients.
We export 25CrMo4 Round Bar Manufacturer Supplier to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, europe, Africa, Asia, North America, South America, Middle East, Far East.etc
Prosaic Steel and Alloys is a well known worldwide exporter of 25CrMo4s Round Bar Manufacturer Supplier is committed to provide each and every customer with the highest standard of customer service. We deals in SCM430 Round Bar Manufacturer Supplier in India & Overseas, offering a wide range of AISI 4130 Round Bar Manufacturer Supplier
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