email

Stainless Steel ER 309 / ER 309LMo


Technical Data Sheet

 

Chemical Composition Limits
Weight% C Mn Si Cr Ni S P Mo Cu
ER 309
ER 309LMo
0.03 max 1.0-2.5 0.30-0.65 23-25 12-14 0.03 max 0.03 max 2-3 0.75 max

Alloy ER 309LMO is used for the welding of dissimilar materials between stainless and low alloy steels, as well as for overlay cladding. This alloy is well suited for austenitic ferritic joints with a maximum application temperature of 300ºC. It is also suited for stainless with wet corrosion up to 350ºC. Alloy 309LMO is also used for depositing buffer layers when welding clad products. ER309LMO can be used for joining unalloyed/low-alloy steels/cast steel grades or stainless/heat-resistance chromium steels/cast steel grades to austenitic steels/ cast steel grades.

Typical Mechanical Properties

Material Ultimate Tensile Strength Offset Yield Strength 0.2 % Elongation (%)
psi MPa psi MPa
ER 309/ ER 309LMo 89,900 620 63,800 440 42


Availability
Alloy ER 309/309LMo is a Stainless Steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

Specifications
AWS 5.9
ASME SFA 5.9
AWS ER 309/309LMo
UNS S30986

Return to Main Welding Page

Services
At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (aog@aircraftmaterials.com), the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

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.