GEN 309LMO Overview
GEN 309LMO is similar to ER309LMo a with lower chromium and higher nickel content which is typically used
to weld type 316 clad steels on the first pass in cladding steel as well as to weld dissimilar metals such as molybdenum-bearing stainless steels to carbon or low alloy steels.
AWS 化学成分（典型）
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
| 0.03 max | 20.5 – 21.5 | 14.2 – 15.0 | 2.0 – 3.0 | 1.5 – 2.25 |
| %Si | %P | %S | %Cu |
|---|---|---|---|
| 0.30 – 0.60 | 0.025 max | 0.005 – 0.02 | 0.30 max |
典型的焊接金属机械性能
| 屈服强度 | 56,000 psi |
| 抗拉强度 | 85,000 psi |
| 伸长 | 35 % |
Typical Welding Parameters
| 过程 | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| 氩弧焊 (GTAW) | 1/16” 1.6 mm | 14 – 17 | 90 – 130 | 100% Ar |
| 氩弧焊 (GTAW) | 3/32” 2.4 mm | 15 – 20 | 120 – 175 | 100% Ar |
| 米格 (GMAW) | .035” 0.9 mm | 29 – 33 | 160 – 190 | 98%Ar – 2%O2 |
| 米格 (GMAW) | .045” 1.1 mm | 29 – 33 | 180 – 220 | 98%Ar – 2%O2 |
| Sub Arc (SAW) | .093” 2.4 mm | 28 – 33 | 250 – 450 | |
| Sub Arc (SAW) | .125” 3.2 mm | 29 – 34 | 300 – 500 |