Stainless Steel SUS317J2 1/2H
Supply condition
JIS SUS317J2
1/2H = half hard
Strip/wire condition for springy parts and clamps where corrosion resistance must stay high.
Values for the 1/2H condition
Other SUS317J2 tempers and conditions
SUS317J2 is listed in 6 conditions; see the grade overview at SUS317J2.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled No.1 | Heavy plate condition for FGD absorbers, scrubbers and pressure-vessel shells. | 380 | 710 | 50 | 175 HB | 2 % IACS |
AnnealedDefault solution annealed and quenched (JIS ) | Standard supply condition for plate, sheet, pipe and bar where maximum corrosion resistance is required. | 390 | 720 | 48 | 180 HB | — |
Cold drawn | Bar stock with better straightness, tolerance and strength for shafts, fasteners and valve stems. | 570 | 830 | 30 | 22 HRC | 2 % IACS |
Quarter hard | Light cold work when higher yield strength is needed with retained formability. | 600 | 860 | 25 | 24 HRC | 2 % IACS |
1/2HThis page Half hard | Strip/wire condition for springy parts and clamps where corrosion resistance must stay high. | 760 | 1,000 | 15 | 30 HRC | 2 % IACS |
Full hard | Maximum strength cold-worked strip or wire; forming is limited to simple bends. | 1,000 | 1,250 | 6 | 38 HRC | 2 % IACS |
What is SUS317J2 1/2H?
SUS317J2 1/2H is SUS317J2 supplied in the 1/2H condition — strip/wire condition for springy parts and clamps where corrosion resistance must stay high. SUS317J2 1/2H has a yield strength of 760 MPa (110 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 94% of stainless steel grades. Elongation at break is 15% and the elastic modulus is 195 GPa (28.3 Msi). SUS317J2 1/2H has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,370°C (2,498 °F). Annealed is the default condition FabDigit quotes; 1/2H is available on request or by drawing note.
Advantages
- High strength — 760 MPa (110 ksi), better than 94% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
- Good corrosion resistance — 78/100, better than 84% of stainless steel grades
Limitations
- Limited service temperature — 300°C (572 °F), worse than 90% of stainless steel grades
- Limited ductility — 15%, worse than 89% of stainless steel grades
- Poor heat conductor — 13 W/m·K (7.51 BTU/hr·ft·°F), worse than 85% of stainless steel grades
- Low electrical conductivity — 2 % IACS, worse than 77% of stainless steel grades
SUS317J2 1/2H properties
Typical room-temperature values for SUS317J2 1/2H; 23 are specific to this condition. Other listed values are SUS317J2 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
SUS317J2 1/2H has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,370°C (2,498 °F).
Mechanical14
SUS317J2 1/2H has a yield strength of 760 MPa (110 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 94% of stainless steel grades. Elongation at break is 15% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
SUS317J2 1/2H is rated for continuous service to 300°C (572 °F). It conducts heat at 13 W/m·K (7.51 BTU/hr·ft·°F), worse than 85% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
SUS317J2 1/2H conducts electricity at 2 % IACS, worse than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 84% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS317J2 1/2H takes about 60 MJ of energy and emits 4.5 kg of CO₂ — more than 70% of stainless steel grades. Typical recycled content is 55%.
Manufacturability7
SUS317J2 1/2H's machinability is poor (28/100, worse than 79% of stainless steel grades); weldability good (60/100); formability poor (30/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with SUS317J2 1/2H
Is SUS317J2 easy to machine?
Gummy and strongly work-hardening — use rigid setups, positive-rake carbide, heavy feeds, low-to-moderate speed and flood coolant; avoid dwelling.
Can SUS317J2 be welded?
Readily welded by GTAW/GMAW with over-alloyed filler (ER317L, ER385/904L or Ni-base 625); keep interpass low and heat input modest to avoid σ/χ phase, no PWHT normally required.
Can SUS317J2 be formed, bent or molded?
Cold forms well but needs ~50 % more press force than 304 and generous springback allowance; hot work at 1100–1200 °C followed by rapid cooling from solution temperature.
What surface finishes work on SUS317J2?
Pickle and passivate (or electropolish) after welding to restore the passive film; not anodizable, mechanical polishing to mirror finish is straightforward.
SUS317J2 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 |
|---|---|---|
| C | ≤ 0.06 | 0.03 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2 | 1.2 |
| P | ≤ 0.05 | — |
| S | ≤ 0.03 | — |
| Ni | 15 – 17 | 16 |
| Cr | 23 – 26 | 24.5 |
| Mo | 4 – 6 | 5 |
| Nnitrogen commonly added by producers to raise PREN; check mill spec | ≤ 0.2 | 0.12 |
| Fe | balance | — |
SUS317J2 1/2H — frequently asked
What is SUS317J2 1/2H used for?
SUS317J2 1/2H is typically used for seawater desalination, chemical processing and flue gas equipment. In short: most corrosion-resistant 317 variant; chloride-service austenitic; high strength, hard to form.
What is the yield strength of SUS317J2 1/2H?
SUS317J2 1/2H has a typical yield strength of 760 MPa (110 ksi) and a tensile strength of 1,000 MPa (145 ksi) — stronger than 94% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is SUS317J2 1/2H easy to machine?
Not especially — machinability is rated poor (28/100, worse than 79% of stainless steel grades). Gummy and strongly work-hardening — use rigid setups, positive-rake carbide, heavy feeds, low-to-moderate speed and flood coolant; avoid dwelling.
Can SUS317J2 1/2H be welded?
Yes — weldability is rated good (60/100). Readily welded by GTAW/GMAW with over-alloyed filler (ER317L, ER385/904L or Ni-base 625); keep interpass low and heat input modest to avoid σ/χ phase, no PWHT normally required.
What surface finishes work on SUS317J2 1/2H?
Pickle and passivate (or electropolish) after welding to restore the passive film; not anodizable, mechanical polishing to mirror finish is straightforward.
Can SUS317J2 1/2H be formed, bent or molded?
Cold forms well but needs ~50 % more press force than 304 and generous springback allowance; hot work at 1100–1200 °C followed by rapid cooling from solution temperature.
What is the maximum service temperature of SUS317J2 1/2H?
SUS317J2 1/2H is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between SUS317J2 Annealed and SUS317J2-FH?
Annealed is the default condition — standard supply condition for plate, sheet, pipe and bar where maximum corrosion resistance is required. FH: maximum strength cold-worked strip or wire; forming is limited to simple bends. Yield strength is 390 MPa in Annealed versus 1,000 MPa in FH.
Sources
- JIS G 4304 / G 4305 — Hot rolled and cold rolled stainless steel plate, sheet and strip — Japanese Standards Association (2021)
- JIS G 4303 — Stainless steel bars — Japanese Standards Association (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- High-molybdenum austenitic stainless steel product literature — Nippon Steel Stainless / Outokumpu (2022)
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.