Carbon Steels A333 Grade 3 is stocked by 6 North American distributors and produced by 4 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Tubular Products by 5 distributors but is also available to a lesser extent in Piping Components.
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Specifications
The following specifications cover Carbon Steels A333 Grade 3
- ASTM A333 Grade 3
- UNS K31918
Property Results
Chemistry Data : [top]
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MSO currently has no data available for this grade.
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Principal Design Features
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This ASTM specification covers low temperature application seamless and welded steel pipe made from nickel , manganese, silicon carbon steel.
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Applications
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Used for piping applications at ambient or low temperature service down to minus 150 F.
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Machinability
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Machinability is fair similar to that for 4820 low alloy steel.
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Forming
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This is a piping product form. Forming may be done by conventional methods.
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Welding
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The piping products covered by this specification are readily weldable by conventional means.
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Heat Treatment
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Piping products are supplied in the normalized 1500 F and air cooled condition. Quenched and tempered product form is heated to 1475 F and quenched in water followed by reheating to 1075 F and air cool or water quench. Piping may also be specified as "Double Normalized and Tempered".
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Forging
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Product is in the form of piping and not subsequently forged.
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Hot Working
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Hot working of seamless piping may be done at temperatures of 2000 F down to 1600 F. Do not hot work below 1550 F. The hot worked product should be cooled from a temperature above 1550 F in a controlled atmosphere furnace.
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Cold Working
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The steel is readily cold worked by conventional methods.
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Annealing
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Anneal or normalize at 1500 to 1600 F and air cool.
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Tempering
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See "Heat Treatment".
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Hardening
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Hardens due to cold working. Also would harden by heating and quenching, but that is not covered in this specification.
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Other Comments
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A333 Grade 3 steel is similar to 4820 alloy steel in properties. Grade 3 has a minimum tensile requirement of 65 ksi and notched bar impact requirement of 4 to 13 ft. lb. depending upon section size.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.284
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Specific Gravity
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7.9
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.104
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Melting Point (Deg F)
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2740
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Thermal Conductivity
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360
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Mean Coeff Thermal Expansion
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6.3
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Modulus of Elasticity Tension
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30
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Modulus of Elasticity Torsion
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11
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
