Product Information 4130 Chrome Moly
- 4130 Round Tube
4130 is a through-hardening chromium-molybdenum alloy steel. It is stocked in as-drawn, stress-relieved, normalized, or quenched and tempered condition, is not subject to temper-embrittlement, and responds to nitriding.
- American Specifications:
- ASTM A519, SAE 4130, AMS 6360, AMS 6371, MIL-T-6736
- British Specifications:
- 708 A 25
- Applications:
- Aerospace, aircraft frame and seats, automotive, motor sports, oil field equipment, construction equipment, military applications
- Size Range:
- .188" - 7.00" OD, .028" - .750" wall
- Machinability:
- Good - depends on heat treat condition; 60 - 70% of AISI B1112 screw stock.
- Average Cutting Speed:
- 120 ft/min
- Weldability:
- Excellent for alloy. Readily welded by Oxyacetylene or Electric
- Forging:
- Hot forge in temperature range of 2000°F. In forging, the finishing temperature should not be under 1800°F.
- Hardening:
- Mild hardenability characteriestics
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties Tensile Strength (ksi) 90 Yield Point (ksi) 70 Elongation (% in 2") 20 Rockwell hardness RB91 Typical Chemical Analysis C .28 - .33 Mn .40 - .60 P .025 max S .025 max Si .20 - .35 Cr .80 - 1.10 Mo .15 - .25 - 4130 Rectangle Tube
Stocklist - 4130 Rectangle Tube
4130 is a through-hardening chromium-molybdenum alloy steel. It is stocked in as-drawn, stress-relieved, normalized, or quenched and tempered condition, is not subject to temper-embrittlement, and responds to nitriding.
- American Specifications:
- ASTM A519, SAE 4130, AMS 6360, AMS 6371, MIL-T-6736
- British Specifications:
- 708 A 25
- Applications:
- Aerospace, aircraft frame and seats, automotive, motor sports, oil field equipment, construction equipment, military applications
- Size Range:
- 3/8" - 2" OD, .035" - .125" wall
- Machinability:
- Good - depends on heat treat condition; 60 - 70% of AISI B1112 screw stock.
- Average Cutting Speed:
- 120 ft/min
- Weldability:
- Excellent for alloy. Readily welded by Oxyacetylene or Electric
- Forging:
- Hot forge in temperature range of 2000°F. In forging, the finishing temperature should not be under 1800°F.
- Hardening:
- Mild hardenability characteriestics
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties Tensile Strength (ksi) 90 Yield Point (ksi) 70 Elongation (% in 2") 20 Rockwell hardness RB91 Typical Chemical Analysis C .28 - .33 Mn .40 - .60 P .025 max S .025 max Si .20 - .35 Cr .80 - 1.10 Mo .15 - .25 - 4130 Streamline Tube
Stocklist- 4130 Streamline Tube
4130 is a through-hardening chromium-molybdenum alloy steel. It is stocked in as-drawn, stress-relieved, normalized, or quenched and tempered condition, is not subject to temper-embrittlement, and responds to nitriding.
- American Specifications:
- ASTM A519, SAE 4130, AMS 6360, AMS 6371, MIL-T-6736
- British Specifications:
- 708 A 25
- Applications:
- Aerospace, aircraft frame and seats, automotive, motor sports, oil field equipment, construction equipment, military applications
- Size Range:
- 1.012" - 3.372" major, .428" - 1.429" minor, .035" - .049" wall
- Machinability:
- Good - depends on heat treat condition; 60 - 70% of AISI B1112 screw stock.
- Average Cutting Speed:
- 120 ft/min
- Weldability:
- Excellent for alloy. Readily welded by Oxyacetylene or Electric
- Forging:
- Hot forge in temperature range of 2000°F. In forging, the finishing temperature should not be under 1800°F.
- Hardening:
- Mild hardenability characteriestics
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties Tensile Strength (ksi) 90 Yield Point (ksi) 70 Elongation (% in 2") 20 Rockwell hardness RB91 Typical Chemical Analysis C .28 - .33 Mn .40 - .60 P .025 max S .025 max Si .20 - .35 Cr .80 - 1.10 Mo .15 - .25 - 4130 Sheet
4130 sheet (UNS G41300) is made from quality steel melted to meet the rigid standards of the aircraft industry. It is carefully rolled and inspected to be free from laminations and tears. It is also free from pits, blisters, grooves, and seams, which cannot be removed without reducing its thickness below the minimum permissible dimensional tolerance limits.
- American Specifications:
- AMS 6350, MIL-S-18729, AMS 6345
- British Specifications:
- 708 A 25
- Applications:
- Intended for general use where welding and moderate tensile properties are required. Sheet is used where 168 ksi minimum tensile strength is required in sections up to .125" thick, and where proportionately lower strength is required in heavier thicknesses.
- Size Range:
- .025" to .190" (.6mm to 5mm)
- Weldability:
- Yes
- Heat Treating:
- Normalize: 1600°F - 1700°F
Quench: oil
Austenitize: 1500°F - 1600°F
Temper: 700°F - 1250°F
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties Annealed Normalized
(up to .062" - .187")Normalized
(over .187" - 1.50")Tensile Strength (ksi) 85 max 95 min 90 min Yield Point (ksi) - 75 70 Elongation (% in 2") - 8-12 15-18 Typical Chemical Analysis C .27 - .33 Mn .40 - .60 P .025 max S .025 max Si .20 - .35 Cr .80 - 1.10 Mo .15 - .25 - 4130 Plate
Hot rolled normalized or annealed 4130 Plate is made from quality steel melted to meet the rigid standards of the aircraft industry. It is carefully rolled and inspected to be free from laminations and tears. It is also free from pits, blisters, grooves, and seams which cannot be removed without reducing tits thickness below the minimum permissible dimensional tolerance limits.
- American Specifications:
- MIL-S-18729, AMS 6350, AMS 6345
- British Specifications:
- 708 A 25
- Applications:
- Intended for general use where welding and moderate tensile properties are required.
- Size Range:
- 3/16" - 6" (5mm - 152 mm)
- Machinability:
- In the annealed condition, 4130 has a machinability rating of 72% based on 1212 as 100%.
- Average Cutting Speed:
- 120 ft/min
- Weldability:
- 4130 may be welded by any of the common welding processes. Preheating and postheating are recommended for difficult weldments.
- Heat Treating:
- Normalize: 1600°F - 1700°F
Quench: oil
Austenitize: 1500°F - 1600°F
Temper: 700°F - 1250°F
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties Annealed Normalized Tensile Strength (ksi) 85 max 90-95 min Yield Point (ksi) - 70-75 Elongation (% in 2") - 8-18 Typical Chemical Analysis C .28 - .33 Mn .40 - .60 P .025 max S .025 max Si .20 - .35 Cr .80 - 1.10 Mo .15 - .25 - 4130 Round Bar
This is a through-hardening alloy of great versatility. The chromium and molybdenum content is sufficient to provide through-hardness penetration in fairly light sections. Good mechanical properties may be obtained by normalizing only where the required strength is not too high. This grade responds to nitriding for excellent wear and abrasion resistance. Its carbon content causes this alloy to be considered as an oil-hardening or water-hardening grade. It also imparts a degree of weldability not found in the higher carbon alloys. Other processing characteristics, such as machinability and formability make it a widely accepted and useful alloy.
- British Specifications:
- 708 A 25
- Applications:
- Shafting, axles, gears, sprockets, piston rods, reamer bodies, well-head components, tool joints, fasteners, hand tools
- Size Range:
- 1/8 - 13" (3mm - 330mm)
- Average Cutting Speed:
- 120 ft/min
- Weldability:
- Good
Please note, this information is to be used as a guide only, for more specific information please call us on 02 4577 7769
Typical Mechanical Properties (Annealed) Tensile Strength (ksi) 80 Yield Point (ksi) 56 Elongation (% in 2") 28 Reduction of Area % 57 Brinell hardness 149 Typical Chemical Analysis C .28 - .33 Mn .40 - .60 P .035 max S .040 max Si .15 - .35 Cr .80 - 1.10 Mo .15 - .25