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Data Sheet:

ER 309 / 309L

Alloy ER 309 / 309L

Weight % C Mn Si Cr Ni S P Mo Cu

ER 309L

0.03

max

1.0-  2.5

0.30- 0.65 23-25 12-14

0.03

max

0.03

max

0.75

max

0.75

max

   

Alloy ER 309L is of similar composition as ER 309 except for the carbon content being lower than 0.03%.  This lower carbon content reduces the possibility of intergranular carbide precipitation.  This increases the resistance of intergranular corrosion without the use of stabilizers such as columbium (niobium) or titanium.  Strength of this low-carbon alloy; however, may not be as great at elevated temperatures as that of the columbium (niobium)-stabilized alloys or ER309.  ER 309L is preferred over ER 309 for cladding over carbon or low alloy steels, as well as for dissimilar joints that undergo heat treatment.

    

AVAILABILITY

Alloy ER 309L is a stainless steel TIG, MIG and SUB-ARC wire used for welding

    

SPECIFICATIONS

AWS 5.9

ASME SFA 5.9

AWS ER309/309L

UNS S30983

    

TYPICAL MECHANICAL PROPERTIES

Material Ultimate Tensile Strength (psi) 0.2% Offset Yield Strength (psi)

Elongation  (%)

ER 309 / 309L 85,550 (590 MPa) 58,000 (400 MPa) 40

  

Disclaimer    

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

   

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