Stainless Steel 1.4301-C1000
Supply condition
EN 1.4301 · UNS S30400 · AISI/SAE 304 · JIS SUS304 · GB 06Cr19Ni10, 0Cr18Ni9
Cold-rolled strip temper for spring clips, shims and stamped parts requiring high yield and flatness.
Values for the C1000 condition
Other 1.4301 tempers and conditions
1.4301 is listed in 10 conditions; see the grade overview at 1.4301.
Compare all 10 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ATDefault solution annealed (solution treated, quenched) | Standard supply condition for sheet, plate, tube and bar — softest, most ductile, fully austenitic and most corrosion resistant. | 260 | 600 | 55 | 155 HB | — |
lightly cold drawn / smooth-turned bar (near-annealed properties) | Bright bar drawn only enough to size and straighten — pick when tight tolerance and good surface are wanted without losing much ductility. | 350 | 650 | 40 | 200 HB | — |
cold worked to minimum tensile strength 700 MPa | Light cold-drawn/cold-rolled temper for shafts, fasteners and springs needing roughly double the annealed yield with useful remaining ductility. | 450 | 760 | 25 | 230 HB | — |
Quarter hard | US-market quarter-hard sheet temper (Rm ≥ 860 MPa) for structural panels and brackets that still need moderate bending. | 590 | 900 | 14 | 27 HRC | 2.4 % IACS |
cold worked to minimum tensile strength 800 MPa | Medium cold-worked bar/wire temper when higher yield is needed and only moderate bending/forming will follow. | 600 | 860 | 18 | 26 HRC | — |
cold worked to minimum tensile strength 900 MPa | Heavily cold-drawn bar/wire for high-strength fasteners and springs where formability is no longer required. | 700 | 960 | 12 | 30 HRC | — |
C1000This page cold rolled strip, minimum tensile strength 1000 MPa (≈ half hard) | Cold-rolled strip temper for spring clips, shims and stamped parts requiring high yield and flatness. | 820 | 1,060 | 9 | 34 HRC | — |
Half hard | Half-hard sheet (Rm ≥ 1035 MPa) for high-strength stampings, clamps and structural strip. | 830 | 1,080 | 8 | 32 HRC | 2.4 % IACS |
Full hard | Maximum-strength sheet temper (Rm ≥ 1275 MPa) for flat springs, blades and wear strip; bend only across the rolling direction. | 1,030 | 1,320 | 4 | 41 HRC | 2.4 % IACS |
cold rolled strip / spring wire, minimum tensile strength 1300 MPa | Full-hard strip and spring wire condition — maximum strength, essentially no cold formability beyond simple bending. | 1,100 | 1,350 | 3 | 42 HRC | 2.4 % IACS |
What is 1.4301-C1000?
1.4301-C1000 is 1.4301 supplied in the C1000 condition — cold-rolled strip temper for spring clips, shims and stamped parts requiring high yield and flatness. 1.4301-C1000 has a yield strength of 820 MPa (119 ksi) and a tensile strength of 1,060 MPa (154 ksi) — stronger than 97% of stainless steel grades. Elongation at break is 9% and the elastic modulus is 200 GPa (29 Msi). 1.4301-C1000 has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F). AT is the default condition FabDigit quotes; C1000 is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 88/100, better than 100% of stainless steel grades
- High strength — 820 MPa (119 ksi), better than 97% of stainless steel grades
- Readily welded — 90/100, better than 95% of stainless steel grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
Limitations
- Limited ductility — 9%, worse than 99% of stainless steel grades
- Limited service temperature — 300°C (572 °F), worse than 90% of stainless steel grades
1.4301-C1000 properties
Typical room-temperature values for 1.4301-C1000; 11 are specific to this condition. Other listed values are 1.4301 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
1.4301-C1000 has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical15
1.4301-C1000 has a yield strength of 820 MPa (119 ksi) and a tensile strength of 1,060 MPa (154 ksi) — stronger than 97% of stainless steel grades. Elongation at break is 9% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4301-C1000 is rated for continuous service to 300°C (572 °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 16 µm/m·K (8.89 µin/in·°F).
Electrical3
1.4301-C1000 conducts electricity at 2.4 % IACS, better than 67% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (65/100), better than 56% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4301-C1000 takes about 53 MJ of energy and emits 4.2 kg of CO₂ — less than 67% of stainless steel grades. Typical recycled content is 65%.
Manufacturability7
1.4301-C1000's machinability is fair (42/100, better than 79% of stainless steel grades); weldability excellent (90/100); formability poor (30/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 1.4301-C1000
Is 1.4301 easy to machine?
Gummy and work-hardening: use rigid setups, sharp positive-rake carbide, heavy positive feed (never dwell), 80–150 m/min with flood coolant; expect ~45 % of 1212 free-machining rate.
Can 1.4301 be welded?
Excellent by GTAW/GMAW/laser/resistance with 308L or 316L filler, no preheat and low interpass (<150 °C); for thick multipass welds prefer low-carbon 1.4307 to avoid sensitisation.
Can 1.4301 be formed, bent or molded?
Very high work-hardening rate gives outstanding deep-drawing and stretch forming, but needs ~50 % more press force than mild steel, generous springback allowance and interstage annealing for severe draws.
What surface finishes work on 1.4301?
Cannot be anodized — pickle and passivate (ASTM A967) after welding or forming, then choose 2B, BA, No.4 brush, mirror polish, bead blast or PVD colour coating.
1.4301 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≤0.07 % per EN 10088-2; ASTM 304 allows ≤0.08 % | ≤ 0.07 | 0.05 |
| Si | ≤ 1 | 0.45 |
| Mn | ≤ 2 | 1.4 |
| P | ≤ 0.05 | 0.03 |
| S≤0.030 % in ASTM A240 304 | ≤ 0.02 | 0.01 |
| N | ≤ 0.11 | 0.05 |
| Cr | 17.5 – 19.5 | 18.2 |
| Ni | 8 – 10.5 | 8.5 |
| Fe | balance | — |
1.4301-C1000 — frequently asked
What is 1.4301-C1000 used for?
1.4301-C1000 is typically used for food processing equipment, architectural panels, tanks and general fabrication. In short: baseline austenitic stainless; highly weldable and formable; widest stock availability.
What is the yield strength of 1.4301-C1000?
1.4301-C1000 has a typical yield strength of 820 MPa (119 ksi) and a tensile strength of 1,060 MPa (154 ksi) — stronger than 97% of stainless steel grades. Strength varies by condition: see the 10 listed tempers.
Is 1.4301-C1000 easy to machine?
Not especially — machinability is rated fair (42/100, better than 79% of stainless steel grades). Gummy and work-hardening: use rigid setups, sharp positive-rake carbide, heavy positive feed (never dwell), 80–150 m/min with flood coolant; expect ~45 % of 1212 free-machining rate.
Can 1.4301-C1000 be welded?
Yes — weldability is rated excellent (90/100). Excellent by GTAW/GMAW/laser/resistance with 308L or 316L filler, no preheat and low interpass (<150 °C); for thick multipass welds prefer low-carbon 1.4307 to avoid sensitisation.
What surface finishes work on 1.4301-C1000?
Cannot be anodized — pickle and passivate (ASTM A967) after welding or forming, then choose 2B, BA, No.4 brush, mirror polish, bead blast or PVD colour coating.
Can 1.4301-C1000 be formed, bent or molded?
Very high work-hardening rate gives outstanding deep-drawing and stretch forming, but needs ~50 % more press force than mild steel, generous springback allowance and interstage annealing for severe draws.
What is the maximum service temperature of 1.4301-C1000?
1.4301-C1000 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 1.4301-AT and 1.4301-C1300?
AT is the default condition — standard supply condition for sheet, plate, tube and bar — softest, most ductile, fully austenitic and most corrosion resistant. C1300: full-hard strip and spring wire condition — maximum strength, essentially no cold formability beyond simple bending. Yield strength is 260 MPa in AT versus 1,100 MPa in C1300.
Sources
- EN 10088-1/-2/-3 Stainless steels — technical delivery conditions — CEN (2014)
- ASTM A240/A240M & ASTM A666 — ASTM International (2023)
- GB/T 20878 / GB/T 3280 (06Cr19Ni10) — SAC (2015)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Outokumpu Steel Grade Datasheet 4301/304 — Outokumpu (2022)
- Total Materia / MatWeb austenitic stainless data — Key to Metals AG (2024)
- SMM / Mysteel (2025)
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.