E309L-16 vs E316L-16: 61% composition overlap. Moderate differences, generally not direct substitutes.
E309L-16 vs E316L-16
Side-by-side chemical composition and mechanical property comparison.
Overview
E309L-16
Rutile-coated stainless steel SMAW electrode for welding dissimilar joints (stainless to carbon steel), stainless steel cladding and overlay welding. 23% Cr, 13% Ni ensures austenitic weld deposit even with dilution from carbon steel base. Low carbon (≤0.03%) for intergranular corrosion resistance. AC or DCEP. Smooth arc, easy slag removal. Used for first layer cladding on pressure vessels, repair of stainless castings and transition joints in process piping.
E316L-16
Rutile-coated austenitic stainless steel SMAW electrode matching 316L (1.4404). 18.5% Cr, 12% Ni, 2.5% Mo, max 0.03% C. Smooth arc, fine ripple bead, easy slag removal. AC or DCEP. For welding 316, 316L and similar Mo-bearing austenitics in food/pharma/chemical processing. Resistant to intergranular corrosion after welding. Used for tanks, vessels, piping and equipment in contact with acids, chlorides and process media.
| E309L-16 | E316L-16 | |
|---|---|---|
| Material Number | — | — |
| Category | Welding | Welding |
| Standard | AWS A5.4 | AWS A5.4 |
Chemical composition (wt%)
| Element | E309L-16 | E316L-16 | Overlap |
|---|---|---|---|
| C | ≤ 0.03% | ≤ 0.03% | OK |
| Si | ≤ 0.9% | ≤ 0.9% | OK |
| Mn | ≤ 2.5% | ≤ 2.5% | OK |
| Cr | 22–25% | 17–20% | No overlap |
Mechanical properties
| Property | E309L-16 | E316L-16 | Unit |
|---|---|---|---|
| Tensile Strength | ≥ 550 | ≥ 490 | MPa |
| Yield Strength | ≥ 320 | ≥ 320 | MPa |
| Elongation | ≥ 30 | ≥ 30 | % |
Compatibility Assessment
E309L-16 and E316L-16 have moderate differences (61% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is E309L-16 the same as E316L-16?
E309L-16 and E316L-16 have a 61% composition overlap. They are generally not directly interchangeable.
Can I replace E309L-16 with E316L-16?
Generally not recommended. The compositions differ significantly (61% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between E309L-16 and E316L-16?
The main differences are in the following elements: Cr, Mo. E309L-16 is a Welding grade, while E316L-16 is a Welding grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.