Stainless Steel E316LT-1 AW-SR
Heat-treated state
GB E316LT1-1
AW-SR = as-welded + stress relief / solution anneal
Only for components solution annealed after welding — dissolves delta ferrite and carbides, softening the deposit and making it essentially non-magnetic.
Values for the AW-SR condition
Other E316LT-1 tempers and conditions
E316LT-1 is listed in 4 conditions; see the grade overview at E316LT-1.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AW-SRThis page As-welded + stress relief / solution anneal | Only for components solution annealed after welding — dissolves delta ferrite and carbides, softening the deposit and making it essentially non-magnetic. | 300 | 520 | 45 | 150 HB | 2.3 % IACS |
As-welded, all-position with Ar-CO₂ mixed gas | Same wire classified/qualified with 75–80 % Ar / bal CO₂ — lower spatter and fume, marginally lower carbon pick-up and slightly better toughness and ductility. | 415 | 555 | 39 | 178 HB | 2.3 % IACS |
AW-T1-1Default As-welded, all-position | Default all-position rutile flux-cored wire run under 100 % CO₂ — the most widely stocked configuration for shop and site FCAW of 316L. | 420 | 560 | 37 | 180 HB | 2.3 % IACS |
As-welded, flat/horizontal only | Higher-deposition flat-and-horizontal-only version of the same 316L flux-cored wire, chosen for long shop fillets and plate welding. | 430 | 570 | 35 | 185 HB | 2.3 % IACS |
What is E316LT-1 AW-SR?
E316LT-1 AW-SR is E316LT-1 heat treated to AW-SR — only for components solution annealed after welding — dissolves delta ferrite and carbides, softening the deposit and making it essentially non-magnetic. E316LT-1 AW-SR has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 195 GPa (28.3 Msi). E316LT-1 AW-SR has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,385°C (2,525 °F). AW-T1-1 is the default condition FabDigit quotes; AW-SR is available on request or by drawing note.
Advantages
- Readily welded — 92/100, better than 98% of stainless steel grades
- Good corrosion resistance — 80/100, better than 88% of stainless steel grades
- Tough — resists crack growth — 190 MPa·√m (172.9 ksi·√in), better than 77% of stainless steel grades
- Ductile — tolerates forming and impact — 45%, better than 76% of stainless steel grades
Limitations
- High embodied carbon — 5.5 kg CO₂/kg, worse than 77% of stainless steel grades
E316LT-1 AW-SR properties
Typical room-temperature values for E316LT-1 AW-SR; 23 are specific to this condition. Other listed values are E316LT-1 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
E316LT-1 AW-SR has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,385°C (2,525 °F).
Mechanical16
E316LT-1 AW-SR has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
E316LT-1 AW-SR is rated for continuous service to 425°C (797 °F). It conducts heat at 15.5 W/m·K (8.96 BTU/hr·ft·°F), better than 53% of stainless steel grades. Thermal expansion is 16.5 µm/m·K (9.17 µin/in·°F).
Electrical3
E316LT-1 AW-SR conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 88% of stainless steel grades.
Sustainability4
Producing a kilogram of E316LT-1 AW-SR takes about 62 MJ of energy and emits 5.5 kg of CO₂ — more than 75% of stainless steel grades. Typical recycled content is 55%.
Manufacturability6
E316LT-1 AW-SR's machinability is fair (42/100, better than 79% of stainless steel grades); weldability excellent (92/100); formability good (65/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with E316LT-1 AW-SR
Is E316LT-1 easy to machine?
Deposit machines like 316L — work-hardens fast; use sharp carbide, positive rake, heavy feed and flood coolant, and remove slag/oxide before cutting.
Can E316LT-1 be welded?
DCEP, 100 % CO₂ (–1) or 75–80 % Ar/CO₂ (–4), 20–30 L/min, 15–25 mm stickout; keep interpass ≤ 150 °C, no preheat, redry damp spools per producer instructions and deslag every pass.
Can E316LT-1 be formed, bent or molded?
Not a formable product form; weld beads may be lightly peened or ground but heavy cold work of the deposit is not recommended.
What surface finishes work on E316LT-1?
Grind/blast to remove slag and heat tint, then pickle and passivate (HNO₃-HF paste) to restore full 316L-level corrosion resistance; polishes to a bright finish.
E316LT-1 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 |
|---|---|---|
| Clow-carbon 'L' grade | ≤ 0.04 | 0.03 |
| Cr | 18 – 20.5 | 19 |
| Ni | 11 – 14 | 12.3 |
| Mo | 2 – 3 | 2.5 |
| Mn | 0.5 – 2.5 | 1.4 |
| Si | ≤ 1 | 0.7 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.03 | 0.01 |
| Cu | ≤ 0.5 | 0.1 |
| Nnot specified in A5.22; typical pick-up | ≈ 0.05 | 0.05 |
| Febalance, undiluted weld metal | balance | — |
E316LT-1 AW-SR — frequently asked
What is E316LT-1 AW-SR used for?
E316LT-1 AW-SR is typically used for FCAW welding of 316/316L process equipment, chemical plant piping and tanks, marine and coastal structural fabrication, pulp and paper digesters and vessels, pharmaceutical and brewery process tanks and seawater cooling and effluent handling systems. In short: mo-bearing flux-cored 316L; best corrosion of the T1 austenitics; high-deposition all-position wire.
What is the yield strength of E316LT-1 AW-SR?
E316LT-1 AW-SR has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 68% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is E316LT-1 AW-SR easy to machine?
Not especially — machinability is rated fair (42/100, better than 79% of stainless steel grades). Deposit machines like 316L — work-hardens fast; use sharp carbide, positive rake, heavy feed and flood coolant, and remove slag/oxide before cutting.
Can E316LT-1 AW-SR be welded?
Yes — weldability is rated excellent (92/100). DCEP, 100 % CO₂ (–1) or 75–80 % Ar/CO₂ (–4), 20–30 L/min, 15–25 mm stickout; keep interpass ≤ 150 °C, no preheat, redry damp spools per producer instructions and deslag every pass.
What surface finishes work on E316LT-1 AW-SR?
Grind/blast to remove slag and heat tint, then pickle and passivate (HNO₃-HF paste) to restore full 316L-level corrosion resistance; polishes to a bright finish.
Can E316LT-1 AW-SR be formed, bent or molded?
Not a formable product form; weld beads may be lightly peened or ground but heavy cold work of the deposit is not recommended.
What is the maximum service temperature of E316LT-1 AW-SR?
E316LT-1 AW-SR is rated for continuous use to about 425°C (797 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between E316LT-1 AW-T1-1 and E316LT-1 AW-SR?
AW-T1-1 is the default condition — default all-position rutile flux-cored wire run under 100 % CO₂ — the most widely stocked configuration for shop and site FCAW of 316L. AW-SR: only for components solution annealed after welding — dissolves delta ferrite and carbides, softening the deposit and making it essentially non-magnetic. Yield strength is 420 MPa in AW-T1-1 versus 300 MPa in AW-SR.
Sources
- AWS A5.22/A5.22M — Stainless Steel Flux Cored and Metal Cored Welding Electrodes and Rods — American Welding Society (2012)
- ASME BPVC Section II Part C SFA-5.22 — ASME (2023)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering — ASM International (1993)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- Stainless flux-cored wire 316L deposit data (typical all-weld-metal properties) — Major consumables producers (ESAB/Lincoln/Kobelco class data) (2023)
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.