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Help CenterCD COLD DRAWN AISI 4140 / 4142 ALLOY STEEL BAR
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CD 4140 / 4142 alloy bar’s chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. This alloy responds well to heat treatment. In the annealed condition it machines at 110 sfm. It also has good wear resistance, toughness, and good ductility in the quenched and tempered condition. This grade can also be supplied as turned ground and polished for tighter dimensional tolerances for bearing fitting applications.
APPLICATIONS
Typical applications are highly stressed parts or parts subject to severe wear.
SIZES
- Diameter: 0.125" thru 12"
- Stock Lengths: 10' thru 24'
TYPICAL CHEMICAL PROPERTIES
Carbon |
0.38 - 0.45 |
Manganese |
0.75 - 1.00 |
Phosphorus, Max % |
0.035 |
Sulfur, Max % |
0.040 |
Silicon |
0.15 - 0.35 |
Chromium |
0.80 - 1.10 |
Molybdenum |
0.15 - 0.25 |
TYPICAL MECHANICAL PROPERTIES FOR ANNEALED
Tensile Strength ksi |
105 - 120 |
Yield Strength |
85k - 95k |
Elongation in 2" |
15% - 25% |
Reduction of area |
45% - 55% |
Brinelle Hardness |
215-235 |
TYPICAL MECHANICAL PROPERTIES FOR HEAT TREATED
Tensile Strength ksi |
130 |
Yield Strength |
110 |
Elongation in 2" |
16% |
Reduction of area |
50% |
Brinelle Hardness |
269-321 |
We mainly produce and deal with carbon steel pipes and alloy steel pipes. In addition, steel rods, steel sheets, steel building materials and machinery parts are also our general trading products. We are not only a manufacturer but also a stock keeper. We normally keep more than 5,000 tons of pipes in various sizes and standards. Our stock pipe size ranges from 20mm to 406mm in outside diameter and from 2mm to 70mm in wall thickness.
Export to: With competitive price and excellent quality our products have been exported to America, Japan, Greece, Russia,Spain, Chile and many other countries. I hope we can establish business relationship with you and expand your business scale. we are professional and experienced supplier of steel products in china. We will provide you with high quality and low price, and we also offer good service. If our products can meet your needs, please contact us freely. We are looking forward to cooperating with you, and welcome your inquiry!
Jay Hou
Sales department
Liaocheng Kuncheng steel pipe CO., Ltd.
Room A0816 ChuangYe Building,
Liaocheng City,Shandong Province,China
Tel&Fax:0635-2930669
Mobile&Whatsapp:008613184174934
Send Inquiry to This Supplier
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