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SAE 4140 Round Bar

SAE 4140 round bar


Table of Content



Most Trusted UNS G41400 Rod Manufacturer in India, Refer Specification Table

SAE 4140 Round Bar Specification


AISI 4140 Round Bar

Size Range of AISI 4140 Round Bar

  • 23.5 mm to 80 mm
ASTM A29 4140 Hex Bar

Length of ASTM A29 4140 Hex Bar

  • Cut to length
  • 5 - 6 Meters
DIN 1.7225 Square Bar

Hardness of DIN 1.7225 Square Bar

  • Brinell : 197
  • Vickers : 207
  • Rockwell B : 92

UNS G41400 Rod

Temperature Range of UNS G41400 Rod

  • 926 to 1205°C (1700 to 2200°F)
AISI 4140 Alloy Steel Flat Bar

Melting Point of AISI 4140 Alloy Steel Flat Bar

  • 1416°C(2580°F)
ASTM A29 4140 Cold Drawn Bar

Tolerance of ASTM A29 4140 Cold Drawn Bar

  • h1 to h12
AISI 4140 Bar

Surface Treatment of AISI 4140 Bar

  • Electro-plating
  • Shot blasting
  • Polishing
  • Chemical Plating
AMS 6382 Alloy Steel Round Bars

Condition AMS 6382 Alloy Steel Round Bars

  • Bright Bar
  • Hardened & Tempered
  • Cold Drawn & Polished
  • Annealed
  • Hot Rolled
  • QT – Peeled – Ground
ASTM A29 4140 Bars

Manufacturing Methods of ASTM A29 4140 Bars

  • Cold drawn
  • Cold rolling
  • Hot rolling
SAE 4140 Rod

Shape of SAE 4140 Rod

  • Flat bar
  • Square bar
  • Round bar
  • Hex bar
  • Rectangular bar
AMS 6382 Cold Drawn Bar

Surface Finish of AMS 6382 Cold Drawn Bar

  • Turned
  • Rough Machined
  • Black
DIN 1.7225 Forged Bar

Heat Treatment of DIN 1.7225 Forged Bar

  • Normalized
  • Quenched & Tempered
  • Annealed
SAE 4140 Round Bar

Certification of SAE 4140 Round Bar

  • NACE MR 0175
  • EN 10204 3.1/3.2
  • NACE MR 0103
  • PED 2014/68/EC
UNS G41400 Hex Bar

Inspection Methods of UNS G41400 Hex Bar

  • Ultrasonic test
  • Macro test
  • Hardness test
  • Flattening test
  • Flaring test
  • Micro test
ASTM A29 4140 Square Bars

Packaging Option for ASTM A29 4140 Square Bar

  • Standard packaging
  • Bubble packing
  • Wooden box packaging


AISI 4140 Rod Delivery Time Table


Country Name Argentina Bolivia Brazil Chile Colombia
Delivery Time 12 weeks

View Huge Stock of AISI 4140 Hex and Flat Bar in Various Finishes at Affordable Price

AMS 6382 Alloy Steel Forged Bar Price List


Size USD INR AED
0.375" AISI 4140 Cold Finished Round Bar $4.88 ₹406.33 د.إ17.01
0.625" AMS6382 Alloy Steel Bar Annealed Cold Finish $7.81 ₹650.85 د.إ28.73
0.500" ASTM A29 4140 Rod Cold Finished Heat Treated $8.34 ₹694.24 د.إ30.64
0.5" SAE 4140-Annealed Cold Finish Forged Bar $8.77 ₹729.83 د.إ32.24
0.75" Annealed Cold Finish UNS G41400 Bar $10.99 ₹914.68 د.إ40.26
0.5625" AISI 4140 alloy steel Rounds (Cold Finish) $11.72 ₹975.99 د.إ43.02
0.750" DIN 1.7225 Rod Heat Treated $12.31 ₹1,024.82 د.إ45.06
0.625" Cold Finished SAE 4140 Bright Bar $12.81 ₹1,065.86 د.إ46.89
0.6875" Annealed Cold Finish 4140 Polished Bar $13.87 ₹1,154.46 د.إ50.54
1.125" ASTM A29 4140 Rod $19.80 ₹1,647.12 د.إ72.62

Types of AISI 4140 Steel Bar


AISI 4140 Steel Bar

AISI 4140 Steel Bar

UNS G41400 bright bar

UNS G41400 bright bar

AISI 4140 alloy steel hollow bars

AISI 4140 alloy steel hollow bars

SAE 4140 Circles

SAE 4140 Circles

Supplier of AMS6382 Alloy Steel Bright Bar in Size Ranging from 23.5 mm to 80 mm, Also Custom Option Available

DIN 1.7225 Rounds Size Chart


Type Cold Drawn and Polish Cold Drawn and Ground Peeled and Ground Peeled and Polished
Sizes (Inches) 1/8" – 3.00" 5/6" – 2.50" 3/4″ – 2.00" 1.50" – 6.00"
Sizes (mm) 3.00 – 75.00 10.00 – 75.00 20.00 – 50.00 40.00 – 150.00
ISO Tolerance h8-h9-h10-h11 h8-h9-h10-h11 h9-h10-h11 h11, h11-DIN 1013

AISI 4140 Round Bars Standard lengths of 2000 mm up to 6000 mm, Cut to Size on Request (tolerance +2/-0 mm)

40 6 35 7 20 9 12 10 16 25 8 30 5
200 50 160 55 90 65 75 70 80 100 60 130 45
Get DIN 1.7225 Forged Bar with EN 10204 3.1/3.2 Certification, Check Properties

UNS G41400 Bright Bar Chemical Composition


SAE 4140 Forged Bars Mechanical Properties


Grade Elongation Yield Strength Tensile Strength
4140 ≥12% ≥950Mpa ≥1100Mpa

AISI 4140 Square Bars Equivalent Grade


Grade Werkstoff nr. UNS
Russia North America
SAE 4140 1.7225 G41400
Check ASTM A29 4140 Square Bar Weight Chart and Physical Properties Below

ASTM A29 4140 Hot Rolled Bar Weight Chart


Size (inches) 11/32 1/16 7/32 3/32 5/16 7/64 9/64 5/32 17/64 11/64 13/64 15/64 3/16 01/4 9/32 01/8 19/64 21/64 5/64 23/64
Round 0.316 0.01 0.128 0.023 0.261 0.031 0.053 0.065 0.188 0.079 0.11 0.147 0.094 0.167 0.211 0.042 0.235 0.288 0.017 0.345
Square 0.402 0.013 0.163 0.029 0.332 0.039 0.067 0.083 0.24 0.1 0.14 0.187 0.12 0.213 0.269 0.053 0.3 0.36 0.022 0.439
Hex 0.348 0.012 0.141 0.025 0.288 0.034 0.058 0.072 0.207 0.087 0.121 0.162 0.104 0.184 0.233 0.046 0.259 0.318 0.019 0.381
Size (inch) 1 3/8 11/16 15/16 23/32 1 1/4 47/64 25/32 13/16 1 1/16 27/32 29/32 31/32 07/8 1 1 1/8 03/4 1 3/16 1 5/16 45/64 1 7/16
Round 5.049 1.262 2.347 1.38 4.172 1.44 1.63 1.763 3.015 1.901 2.193 2.506 2.045 2.67 3.38 1.502 3.766 4.6 1.32 5.518
Square 6.428 1.607 2.988 1.756 5.313 1.834 2.075 2.245 3.838 2.421 2.792 3.191 2.603 3.4 4.303 1.913 4.795 5.857 1.681 7.026
Hex 5.567 1.392 2.588 1.521 4.601 1.588 1.797 1.944 3.324 2.096 2.418 2.763 2.254 2.945 3.727 1.656 4.152 5.072 1.456 6.085
Size (inch) 43/64 03 35/64 27/64 41/64 7/16 15/32 31/64 19/32 01/2 17/32 9/16 33/64 37/64 39/64 29/64 05/8 21/32 25/64
Round 1.205 0.376 0.799 0.475 1.096 0.511 0.587 0.627 0.941 0.668 0.754 0.845 0.71 0.893 0.992 0.548 1.043 1.15 0.408
Square 1.535 0.478 1.017 0.605 1.395 0.651 0.747 0.798 1.199 0.85 0.96 1.076 0.904 1.136 1.263 0.698 1.328 1.464 0.519
Hex 1.329 0.414 0.881 0.524 1.209 0.564 0.647 0.692 1.038 0.736 0.831 0.932 0.783 0.985 1.094 0.604 1.15 1.268 0.45
Size (inch) 2 11/16 1 1/2 2 3/16 1 11/16 2 9/16 1 3/4 1 7/8 1 15/16 2 3/8 2 2 1/8 2 1/4 2 1/16 2 5/16 2 7/16 1 13/16 2 1/2 2 5/8 1 9/16
Round 19.29 6.008 12.78 7.604 17.53 8.178 9.388 10.02 15.06 10.68 12.06 13.52 11.36 14.28 15.87 8.773 16.69 18.4 6.519
Square 24.56 7.65 16.27 9.682 22.33 10.41 11.95 12.76 19.18 13.6 15.35 17.21 14.46 18.18 20.2 11.17 21.25 23.43 8.301
Hex 21.27 6.625 14.09 8.385 19.34 9.018 10.35 11.05 16.61 11.78 13.3 14.91 12.53 15.75 17.49 9.673 18.4 20.29 7.189

UNS G41400 Cold Drawn Bar Physical Properties


Thermal expansion (at 0-100°C/32-212°F) Thermal conductivity (at 100°C)
Imperial Metric Imperial Metric
6.78 µin/in°F 12.2 µm/m°C 6.78 µin/in°F 12.2 µm/m°C
Electrical Resistivity
Temperature (°C) Value (μΩ· m) condition
600 0.22 Hardened and tempered
400 0.26
200 0.33
100 0.48
20 0.65