The welding electrode identification system for stainless steel arc welding is set up as follows: E indicates electrode for arc welding. The first three digits indicated the American Iron and Steel type of stainless steel. The last two digits indicate the current and position used. 5.11.0.5 Another common use of stainless steel filler metals is the overlaying or cladding of less expensive steels with a layer of stainless. Mild steel tanks designed to hold corrosive liquids may be lined with stainless steel in this manner. Usually, continuous bare or flux cored electrodes are used with an automated welding setup. Current and penetration must be controlled closely to.
Welding electrodes classification for Shielded Metal Arc Welding (SMAW) by American Welding Society (AWS) is as follows.
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Mild Steel Coated Electrodes
Example Electrode Designation : Ps cs6 download full version free.
E7018-X
E – Indicates that this is an Electrode.
70 – Indicates tensile strength. Measured in thousands of pounds per square inch.
1 – Indicates welding position.
8 – Indicates the coating, penetration, and current type used. (See Classification Table below)
X – Indicates that there are more requirements. (See Additional Requirements below)
WELDING POSITIONS
| 1 | All positions (Flat, Horizontal, Vertical (up), Overhead) |
| 2 | Flat, Horizontal |
| 4 | Flat, Horizontal, Overhead, Vertical (down) |
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Mild Steel Coated Electrodes
Example Electrode Designation : Ps cs6 download full version free.
E7018-X
E – Indicates that this is an Electrode.
70 – Indicates tensile strength. Measured in thousands of pounds per square inch.
1 – Indicates welding position.
8 – Indicates the coating, penetration, and current type used. (See Classification Table below)
X – Indicates that there are more requirements. (See Additional Requirements below)
WELDING POSITIONS
| 1 | All positions (Flat, Horizontal, Vertical (up), Overhead) |
| 2 | Flat, Horizontal |
| 4 | Flat, Horizontal, Overhead, Vertical (down) |
Stainless Steel Electrode Classification Gauge
CLASSIFICATION TABLE
| Class | Electrode Coating | Penetration | Current Type |
| Exxx0 | Cellulose, Sodium | Deep | DCEP |
| Exxx1 | Cellulose, Potassium | Deep | AC, DCEP |
| Exxx2 | Rutile, Sodium | Medium | AC, DCEN |
| Exxx3 | Rutile, Potassium | Light | AC, DCEP, DCEN |
| Exxx4 | Rutile, Iron Powder | Medium | AC, DCEP, DCEN |
| Exxx5 | Basic, Low Hydrogen, Sodium | Medium | DCEP |
| Exxx6 | Basic, Low Hydrogen, Potassium | Medium | AC, DCEP |
| Exxx7 | Basic, Iron Powder, Iron Oxide | Medium | AC, DCEN |
| Exxx8 | Basic, Low Hydrogen, Iron Powder | Medium | AC, DCEP |
| Exxx9 | Basic, Iron Oxide, Rutile, Potassium | Medium | AC, DCEP, DCEN |
ADDITIONAL REQUIREMENTS
| Suffix | Additional Requirement |
| -1 | Increased toughness (impact strength). |
| -M | Meets most military requirements – greater toughness, lower moisture content as received after exposure, diffusible hydrogen limits for weld metal. |
| -H4, -H8, -H16 | Indicates the maximum diffusible hydrogen limit measured in millimeters per 100 grams (mL/100g). The 4, 8, and 16 indicates what the limit is. Example: -H4 = 4mL per 100 grams |
LOW ALLOY STEEL COATED ELECTRODES
Stainless Steel Electrode Classification Calculator
SUFFIX TABLE
Stainless Steel Stick Welding Electrodes
| Suffix | Steel Alloy Type | Suffix Number Description |
| -A1 | Carbon-Molybdenum | 0.40 – 0.65 Mo |
| -B1 | Chromium-Molybdenum | 0.40 – 0.65 Cr 0.40 – 0.65 Mo |
| -B2 | Chromium-Molybdenum | 1.00 – 1.50 Cr 0.40 – 0.65 Mo |
| -B2L | Chromium-Molybdenum | Lower Carbon B2 |
| -B3 | Chromium-Molybdenum | 2.00 – 2.50 Cr 0.90 – 1.20 Mo |
| -B3L | Chromium-Molybdenum | Lower Carbon B3 |
| -B4L | Chromium-Molybdenum | 1.75 – 2.25 Cr 0.40 – 0.65 Mo |
| -B5 | Chromium-Molybdenum | 0.40 – 0.60 Cr 1.00 – 1.25 Mo |
| -B6 | 4.6 – 6.0 Cr 0.45 – 0.65 Mo | |
| -B8 | 8.0 – 10.5 Cr 0.8 – 1.2 Mo | |
| -C1 | Nickel Steel | 2.00 – 2.75 Ni |
| -C1L | Nickel Steel | Lower Carbon C1 |
| -C2 | Nickel Steel | 3.00 – 3.75 Ni |
| -C2L | Nickel Steel | Lower Carbon C2 |
| -C3 | Nickel Steel | 0.80 – 1.10 Ni |
| -NM | Nickel-Molybdenum | 0.80 – 1.10 Ni 0.40 – 0.65 Mo |
| -D1 | Manganese-Molybdenum | 1.00 – 1.75 Mn 0.25 – 0.45 Mo |
| -D2 | Manganese-Molybdenum | 1.65 – 2.00 Mn 0.25 – 0.45 Mo |
| -D3 | Manganese-Molybdenum | 1.00 – 1.80 Mn 0.40 – 0.65 Mo |
| -W | Weathering Steel | Ni, Cr, Mo, Cu |
| -G | No required chemistry | |
| -M | Military grade May have more requirements |
Stainless Steel Stick Electrodes
CHEMICAL SYMBOLS FOR THE ELEMENTS
Stainless Steel Electrode Classification Definition
| C | Carbon Most effective hardening element in steel |
| Mn | Manganese Hardening element second to carbon |
| Si | Silicon Deoxidizer, moderate strengthener |
| P | Phosphorus Causes cracking if too high |
| S | Sulfur Aids in machining – Cracking problems like P |
| Cr | Chromium Hardness (low) – corrosion resistance (high) |
| Ni | Nickel Hardening element – better cold toughness |
| Mo | Molybdenum Hardenability – high temp tensile – creep strength |
| B | Boron Very small amounts increase hardness |
| Cu | Copper Corrosion resistance (low) – cracking (high) |
| Al | Aluminum Deoxidizer – improves mechanical properties |
| Ti | Titanium Removes: Oxygen, S, N, and C |
| N | Nitrogen Improves strength – lowers toughness |
| Cb | Columbium Hardness – Improves mechanical properties |
| V | Vanadium Hardness – Improves mechanical properties |
