STOCKIST & EXPORTERS OF ASTM A 519 4130/4140 PIPES (AN ISO 9001:2008 CERTIFIED COMPANY)
   

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AISI 4130 NORMALIZED PROPERTIES

AISI 4130 Steel, normalized at 870°C (1600°F)

SubcategoryAISI 4000 Series Steel; Ferrous Metal; Low Alloy Steel; Medium Carbon Steel; Metal
Key Wordsalloy steels, UNS G41300, AMS 6350, AMS 6356, AMS 6360, AMS 6361, AMS 6372, AMS 6370, AMS 6371, AMS 6373, ASTM A322, ASTM A331, ASTM A505, ASTM A513, ASTM A519, ASTM A646, JIS SCM 2, JIS SCCrM 1, SS14 2225 (Sweden), B.S. CDS 110 (UK), medium carbon steels, chromium-molybdenum, chrome-moly, MIL SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770, DIN 1.7218, AFNOR 25 CD 4 (France), MIL-S-6758 (flat and round bar), MIS-S-18729 ANN and NORM (sheet and plate), QQS-624 (round bar)


Component

   Wt. %

C

0.28 - 0.33

Cr

0.8 - 1.1

Fe

97.3 - 98.22

Mn

0.4 - 0.6

Mo

0.15 - 0.25

P

Max 0.035

S

Max 0.04

Si

0.15 - 0.35



Physical Properties

Metric

English

Comments

Density

7.85 g/cc

0.284 lb/in³

 

Mechanical Properties

Hardness, Brinell

197

197

 

Hardness, Knoop

219

219

 Converted from Brinell hardness.

Hardness, Rockwell B

92

92

 Converted from Brinell hardness.

Hardness, Rockwell C

13

13

 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.

Hardness, Vickers

207

207

 Converted from Brinell hardness.

Tensile Strength, Ultimate

<670 MPa

97200 psi

 

Tensile Strength, Yield

435 MPa

63100 psi

 

Elongation at Break

25.5 %

25.5 %

 in 50 mm

Reduction of Area

60 %

60 %

 

Modulus of Elasticity

205 GPa

29700 ksi

 Typical for steel

Bulk Modulus

140 GPa

20300 ksi

 Typical for steel

Poisson's Ratio

0.29

0.29

 Calculated

Izod Impact

87 J

64.2 ft-lb

 

Machinability

70 %

70 %

 annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.

Shear Modulus

80 GPa

11600 ksi

 Typical for steel

Electrical Properties

Electrical Resistivity

2.23e-005 ohm-cm

2.23e-005 ohm-cm

 specimen hardened and tempered; 20°C (68°F)

Electrical Resistivity at Elevated Temperature

0.0001103 ohm-cm

0.0001103 ohm-cm

 specimen hardened and tempered; 800°C (1470°F)

Electrical Resistivity at Elevated Temperature

0.0001171 ohm-cm

0.0001171 ohm-cm

 specimen hardened and tempered; 1000°C (1830°F)

Electrical Resistivity at Elevated Temperature

0.0001222 ohm-cm

0.0001222 ohm-cm

 specimen hardened and tempered; 1200°C (2192°F)

Electrical Resistivity at Elevated Temperature

2.71e-005 ohm-cm

2.71e-005 ohm-cm

 specimen hardened and tempered; 100°C (212°F)

Electrical Resistivity at Elevated Temperature

3.42e-005 ohm-cm

3.42e-005 ohm-cm

 specimen hardened and tempered; 200°C (390°F)

Electrical Resistivity at Elevated Temperature

5.29e-005 ohm-cm

5.29e-005 ohm-cm

 specimen hardened and tempered; 400°C (750°F)

Electrical Resistivity at Elevated Temperature

7.86e-005 ohm-cm

7.86e-005 ohm-cm

 specimen hardened and tempered; 600°C (1110°F)

Thermal Properties

Specific Heat Capacity

0.477 J/g-°C

0.114 BTU/lb-°F

 50-100°C

Specific Heat Capacity at Elevated Temperature

0.523 J/g-°C

0.125 BTU/lb-°F

 150-200°C

Specific Heat Capacity at Elevated Temperature

0.837 J/g-°C

0.2 BTU/lb-°F

 750-800°C

Thermal Conductivity

42.7 W/m-K

296 BTU-in/hr-ft²-°F

 100°C

Thermal Conductivity at Elevated Temperature

30.1 W/m-K

209 BTU-in/hr-ft²-°F

 1200°C

Thermal Conductivity at Elevated Temperature

40.7 W/m-K

282 BTU-in/hr-ft²-°F

 300°C



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