Stainless Steel E2595 -16
Grade
UNS W39595 · ASTM A5.4
-16 = e2595-16
Most commonly stocked coating type: good all-position operability with adequate toughness for seawater piping.
Values for the -16 condition
Other E2595 tempers and conditions
E2595 is listed in 5 conditions; see the grade overview at E2595.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution Annealed | Pick when the weldment (e.g. super duplex casting repair) is re-solution annealed and quenched to restore phase balance and maximum corrosion resistance. | 620 | 830 | 30 | 24 HRC | 2 % IACS |
E2595-17 | Use where bead appearance, slag release and easy flat/horizontal welding matter more than peak toughness. | 670 | 875 | 24 | 27 HRC | 2 % IACS |
AWDefault As-welded deposit | Standard supplied/qualified condition for E2595 deposits; use for site and shop welds on Zeron 100-type super duplex. | 680 | 880 | 25 | 27 HRC | 2 % IACS |
-16This page E2595-16 | Most commonly stocked coating type: good all-position operability with adequate toughness for seawater piping. | 680 | 880 | 25 | 27 HRC | 2 % IACS |
E2595-15 | Choose for lowest hydrogen/oxygen deposit and best low-temperature toughness in restrained or thick-section joints. | 700 | 890 | 25 | 28 HRC | 2 % IACS |
What is E2595 -16?
E2595 -16 is E2595 in the -16 grade — most commonly stocked coating type: good all-position operability with adequate toughness for seawater piping. E2595 -16 has a yield strength of 680 MPa (98.6 ksi) and a tensile strength of 880 MPa (128 ksi) — stronger than 91% of stainless steel grades. Elongation at break is 25% and the elastic modulus is 200 GPa (29 Msi). E2595 -16 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,350°C (2,462 °F). AW is the default condition FabDigit quotes; -16 is available on request or by drawing note.
Advantages
- Good corrosion resistance — 90/100, better than 99% of stainless steel grades
- High strength — 680 MPa (98.6 ksi), better than 91% of stainless steel grades
Limitations
- Limited service temperature — 275°C (527 °F), worse than 98% of stainless steel grades
- Difficult to machine — 22/100, worse than 95% of stainless steel grades
- High embodied carbon — 5.8 kg CO₂/kg, worse than 86% of stainless steel grades
- Low electrical conductivity — 2 % IACS, worse than 77% of stainless steel grades
E2595 -16 properties
Typical room-temperature values for E2595 -16; 22 are specific to this condition. Other listed values are E2595 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
E2595 -16 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,350°C (2,462 °F).
Mechanical17
E2595 -16 has a yield strength of 680 MPa (98.6 ksi) and a tensile strength of 880 MPa (128 ksi) — stronger than 91% of stainless steel grades. Elongation at break is 25% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
E2595 -16 is rated for continuous service to 275°C (527 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 13 µm/m·K (7.22 µin/in·°F).
Electrical3
E2595 -16 conducts electricity at 2 % IACS, worse than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is excellent (90/100), better than 99% of stainless steel grades.
Sustainability4
Producing a kilogram of E2595 -16 takes about 62 MJ of energy and emits 5.8 kg of CO₂ — more than 75% of stainless steel grades. Typical recycled content is 55%.
Manufacturability7
E2595 -16's machinability is poor (22/100, worse than 95% of stainless steel grades); weldability very good (72/100); formability fair (35/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with E2595 -16
Is E2595 easy to machine?
Weld deposit is tough and work-hardening — use rigid setups, sharp carbide tools, low speed/high feed and flood coolant; expect ~20 % of AISI 1212.
Can E2595 be welded?
Deposit with DCEP (AC for -16/-17), heat input roughly 0.5–1.5 kJ/mm, interpass ≤ 150 °C, no preheat needed above 5 °C, redry electrodes 250–300 °C to keep hydrogen low and preserve 35–55 % ferrite.
Can E2595 be formed, bent or molded?
Consumable — not formed; deposited weld metal has high yield strength and springback, so any cold straightening of weldments must be limited to avoid cracking.
What surface finishes work on E2595?
Remove slag fully, then grind, pickle (HNO3/HF) and passivate to restore the chromium-rich film; leaving heat tint sharply lowers pitting resistance.
E2595 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Cmax per AWS A5.4 | ≤ 0.04 | 0.03 |
| Cr | 24 – 27 | 25 |
| Ni | 8 – 10.5 | 9.5 |
| Mo | 2.5 – 4.5 | 3.6 |
| Wtungsten addition, Zeron 100 type | 0.4 – 1 | 0.7 |
| Cu | 0.4 – 1.5 | 0.7 |
| N | 0.2 – 0.3 | 0.25 |
| Mn | ≤ 2.5 | 0.8 |
| Si | ≤ 1.2 | 0.8 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.03 | 0.01 |
| Fe | balance | — |
E2595 -16 — frequently asked
What is E2595 -16 used for?
E2595 -16 is typically used for high-chloride marine equipment, seawater pumps and valves and offshore critical components. In short: highest corrosion resistance duplex; tungsten-alloyed weld metal; for Zeron 100-type base metal.
What is the yield strength of E2595 -16?
E2595 -16 has a typical yield strength of 680 MPa (98.6 ksi) and a tensile strength of 880 MPa (128 ksi) — stronger than 91% of stainless steel grades. Strength varies by condition: see the 5 listed tempers.
Is E2595 -16 easy to machine?
Not especially — machinability is rated poor (22/100, worse than 95% of stainless steel grades). Weld deposit is tough and work-hardening — use rigid setups, sharp carbide tools, low speed/high feed and flood coolant; expect ~20 % of AISI 1212.
Can E2595 -16 be welded?
Yes — weldability is rated very good (72/100). Deposit with DCEP (AC for -16/-17), heat input roughly 0.5–1.5 kJ/mm, interpass ≤ 150 °C, no preheat needed above 5 °C, redry electrodes 250–300 °C to keep hydrogen low and preserve 35–55 % ferrite.
What surface finishes work on E2595 -16?
Remove slag fully, then grind, pickle (HNO3/HF) and passivate to restore the chromium-rich film; leaving heat tint sharply lowers pitting resistance.
Can E2595 -16 be formed, bent or molded?
Consumable — not formed; deposited weld metal has high yield strength and springback, so any cold straightening of weldments must be limited to avoid cracking.
What is the maximum service temperature of E2595 -16?
E2595 -16 is rated for continuous use to about 275°C (527 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between E2595-AW and E2595-SA?
AW is the default condition — standard supplied/qualified condition for E2595 deposits; use for site and shop welds on Zeron 100-type super duplex. SA: pick when the weldment (e.g. super duplex casting repair) is re-solution annealed and quenched to restore phase balance and maximum corrosion resistance. Yield strength is 680 MPa in AW versus 620 MPa in SA.
Sources
- AWS A5.4/A5.4M — Stainless Steel Electrodes for Shielded Metal Arc Welding — American Welding Society (2012)
- ISO 3581 — Welding consumables, covered electrodes for stainless and heat-resisting steels — ISO (2016)
- ASTM A890/A890M & ASTM A182 (UNS S32760 base metal) — ASTM (2022)
- Super duplex SMAW electrode datasheets (25 9 4 Cu W N type) — Böhler Welding / Sandvik / Metrode (2023)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (duplex stainless welding) — ASM International (1993)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.