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SAE/AISI 4140

Home ALLOY STEELS SAE/AISI 4140

4140 ROUND BAR STOCKIST, SUPPLIER, EXPORTER

SAE 4140 / AISI 4140 Round Bar


AISI / SAE 4140 Alloy Steel Round Bar & Rods

 

What is 4140 Steel?

SAE / AISI 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. Not many grades can match the versatility and usefulness of 4140.

AISI/SAE 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. It shows good overall combinations of strength, toughness, wear resistance and fatigue strength.

Presinox Impex is a Major Stockist, Suppliers, Wholesaler of AISI / SAE 4140 Round Bars, Rods, Shafts Etc. We also provide cut piece as per as customers requirement. we also keep Big Diameter Round Bar in Stock.

 

4140 Chemical Composition :
Element % Min Max
Carbon C 0.38 0.43
Manganese Mn 0.75 1.00
Phosphorus P  - 0.035
Sulfur S -  0.040
Silicon Si 0.20 0.35
Chromium Cr 0.80 1.10
Molybdenum Mo 0.15 0.25

 

 

Related Specifications or Equivalent of 4140:
Australia  AS 1444-1996-4140
Germany  DIN 17212 W.Nr 1.7223 Type 41CrMo4
 DIN 17200-1654 W.Nr 1.7225 Type 42CrMo4
 DIN 17200 W.Nr 1.7227 Type 42CrMoS4
Great Britain   BS970-1955 EN19A
 BS970 Part 3:1991 709M40
International   ISO 683/II Type 3
 ISO 683/IV Type 3a
 ISO 683/IV Type 3b
Japan  JIS G 4103 SNCM4
 JIS G 4105 SCM4
 JIS G 4105 SCM440
USA  AISI 4140
 ASTM A29/A29M-91 4140
 ASTM A322 4140
 ASTM A331 4140 (Cold Finish)
 SAE 4140

 

 

Chemical Compostion of 4140 and Equivalent Grades :
Grade C Si Mn Cr Mo P S
4140 0.38 - 0.43 0.15 - 0.35 0.75 - 1.00 0.80 - 1.10 0.15 - 0.25 ≤0.035 ≤0.040
DIN WN-r 1.7225 0.38 - 0.45  ≤0.40 0.60 - 0.90 0.90 - 1.20 0.15 - 0.30 ≤0.035 ≤0.035
GB/T - 42CrMo 0.38 - 0.45 0.17 - 0.37 0.50 - 0.80 0.90 - 1.20 0.15 - 0.25 ≤0.030 ≤0.030
BS 708M40 0.36 - 0.44 0.10 - 0.35 0.70 - 1.00 0.90 - 1.20 0.15 - 0.25 ≤0.035 ≤0.035
JIS SCM440 0.38 - 0.43 0.15 - 0.35 0.60 - 0.85 0.90 - 1.20 0.15 - 0.30 ≤0.030 ≤0.030

 

 

Applications of 4140 Round Bar :

This alloy finds many applications as forgings for the aerospace and oil and gas industries, along with myriad uses in the automotive, agricultural and defense industries, Typical uses are forged gears and shafts, spindles, fixtures, jigs and collars, Drill collars, high temperature bolts, sprockets, kelly bars, reamer bodies, rotary table shafting, oil well tool joints, spindles, stay bolts, tractor axles, tractor arms, axle shafts, valves, bolts, subs, couplings, trailer axles, winch shafts, piston rods, rams, hydraulic machinery shafts, precision lead screws, chain links, zinc die-casting dies.

 

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