SAE 4130 Round Bars

SAE 4130 Bars, Alloy 4130 Round Bar Suppliers and Dealer in Mumbai, India.

SAE 4130 Forged Bars Exporter, Supplying Alloy Steel SAE 4130 Round Bar, Stocking AISI 4130, Distributing SCM 430 Bars, UNS G41300 Alloy Steel Round Bar Manufacturer in India. DIN 1.7218 25CrMo4 Available in Shapes like Round, Hex, Flat, Rectangular, Machined, Forged Etc. in Hot Rolled and Cold Rolled Form.

AISI 4130, SAE 4130, ASTM A29 4130 ROUND BAR, EN 10250 25CRMO4, 1.7218, JIS G4105 SCM 430, STEEL RODProsaic Steel and Alloy is one of the well-known exporter and Distributor of SAE 4130 Round Bars, engineering alloy steel containing chromium and molybdenum. It falls in a class of low alloy steel. SAE 4130 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.

SAE 4130 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.



SAE 4130 Round Bar Specifications

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
SAE 4130 Bar Outer Diameter Range
 : 5mm to 500mm Dia in 100mm to 6000mm Length
SAE 4130 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 :
  • Huge Stock, Timely delivery
  • Raw Materials Certificate
  • EN 10204/3.1B
  • 100% Radiography Test Report
  • High special strength, high melt point
  • Third Party Inspection Report, etc
  • Excellent corrosive resistance, good thermal resistance
  • Customer support after-sales service
  • Strict Control from Raw Material to Finished Product

SAE 4130 Round Bar Chemical Composition

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

SAE 4130 Round Bars Physical Properties

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

SAE 4130 Round Bars Mechanical Properties

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

SAE 4130 Round Bars Supply Form

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

SAE 4130 Round Bar Forging

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.

SAE 4130 Round Bar Heat Treatment

4130 Annealing

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 Normalizing

Normalizing 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 Tempering

Tempering 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 SAE 4130 Round Bar

This 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.

SAE 4130 Round Bar Price List

  • SAE 4130 Alloy steel bars
    US $1000-2500 / Ton
  • AISI 4130 Alloy Steel rods
    US $2000-3000 / Ton
  • 4130 Square bar
    US $1.5-4.5 / Kilogram
  • SCM 430 Barsbar
    US $1800-2300 / Ton
  • DIN 1.7218 42CrMo4
    US $1800-2300 / Ton
  • UNS G41300 Alloy Steel Round Bar
    US $1300-2600 / Metric Ton

SAE 4130 Round Bar Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

SAE 4130 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.

  • EN 10204/3.1B,
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc

ASTM, ASME, SAE, AISI 4130 Bars Value Added Services

Material Testing:

We at Prosaic Steel and Alloy ensure that all our materials go through strict quality tests before dispatching them to our clients.

  • Mechanical Testing Such as Tensile of Area
  • Hardness Test
  • Chemical Analysis – Spectro Analysis
  • Positive Material Identification – PMI Testing
  • Flattening Test
  • Micro and MacroTest
  • Pitting Resistance Test
  • Flaring Test
  • Intergranular corrosion (IGC) Test

4130 Round Bar Documentation

  • Commercial Invoice which includes HS Code
  • Packing List including net weight and gross weight, number of boxes, Marks and Numbers
  • Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
  • Fumigation Certificates
  • Raw Material Test Reports
  • Material Traceability Records
  • Quality Assurance Plan (QAP)
  • Heat Treatment Charts
  • Test Certificates certifying NACE MR0103, NACE MR0175
  • Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
  • Guarantee Letter
  • NABL approved Laboratory Test Reports
  • Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
  • Form A for the purposes of the Generalized System of Preferences (GSP)

We export SAE 4130 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 SAE 4130 Round Bar Manufacturer Supplier is committed to provide each and every customer with the highest standard of customer service. We deals in SAE 4130 Round Bar Manufacturer Supplier in India & Overseas, offering a wide range of AISI 4130 Round Bar Manufacturer Supplier

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