Howco Group Technical Guide Mechanical Tube & OCTG A4130

Mechanical Tube & OCTG

 

925 Tube

4130 / 4140 / 4145 Tube

825 & 28 Cr. Tube

304L / 316L
S32760 & S31803 Tube Carbon Steels (1018-1040)
Super 13 Cr. & 13-5-2 Tube OCTG
9 Cr / 1MB Tube    

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UNS ASTM A519 (V01.01)  


GENERAL SCOPE
 

Stocked through a wide range of sizes, through mechanical tube, casing and DOM (drawn over mandrel) product forms.

These grades of low alloy steel containing Chromium and Molybdenum are the most widely used alloy for oil patch applications. Usually supplied in the hardened and tempered condition at 22 HRC max. They also find favour in many applications requiring higher strength levels up to 150 KSI 0.2% PS. The grade is not NACE MR0175 approved in these conditions, and should not be used in environments containing H2S.

The hardenability limitations of this grade (depth to which it will harden / obtain the specified mechanical properties after heat treatment) must always be taken into account when designing and selecting equipment.

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