Stainless Steel 1.4371
EN 1.4371
1.4371 (X2CrMnNiN17-7-5) is a low-carbon, nitrogen-alloyed CrMnNi austenitic stainless developed as a low-nickel alternative to 301 and 304 for cost-sensitive structural sheet.
Reference datasheet — 1.4371 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the CR-2B condition
1.4371 tempers and conditions
1.4371 is supplied in 7 conditions, soft to hard. CR-2B is the default FabDigit quotes; the values on this page are for it.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled, Annealed & Pickled | Choose for thicker plate/coil (>3 mm) and welded structural work where surface finish is secondary. | 390 | 720 | 48 | 185 HB | — |
CR-2BDefault Cold Rolled, Annealed & Pickled | Default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication. | 420 | 750 | 50 | 195 HB | — |
Cold worked to Rm ≥ 700 MPa | Light temper roll for flatness and modest strength gain while keeping useful bendability. | 460 | 760 | 28 | 21 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 850 MPa | Mid temper for light structural sections, clips and formed panels needing higher proof stress. | 620 | 910 | 16 | 28 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1000 MPa | High-strength strip for roll-formed rails, clamps and lightweight transport profiles. | 820 | 1,060 | 10 | 33 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1150 MPa | Full-hard strip where strength-to-weight matters and only simple large-radius bending is required. | 980 | 1,210 | 6 | 38 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1300 MPa | Spring-temper strip/wire for flat springs and clips; essentially no cold formability beyond gentle bends. | 1,150 | 1,360 | 3 | 42 HRC | 2.4 % IACS |
What is 1.4371?
1.4371 (X2CrMnNiN17-7-5) is a low-carbon, nitrogen-alloyed CrMnNi austenitic stainless developed as a low-nickel alternative to 301 and 304 for cost-sensitive structural sheet. The low carbon plus nitrogen gives roughly 420 MPa yield, 750 MPa tensile, 50 % elongation and 195 HB (94 HRB) with good weldability (score 78) and formability (82), and it is stocked as CR-2B and HR-1D sheet plus C700 to C1300 cold-worked tempers. Corrosion resistance is the limit — score 48, clearly below 304 — and service temperature is capped near 550 °C, so coat or upgrade to 1.4301 (304) for chloride or outdoor exposure. 1.4371 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F). 1.4371 has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi).
What is 1.4371 used for?
- structural sheet components
- consumer appliance panels
- railings
- trim and hardware
Advantages
- Forms and bends easily — 82/100, better than 94% of stainless steel grades
- Low embodied carbon — 3.4 kg CO₂/kg, better than 91% of stainless steel grades
- Ductile — tolerates forming and impact — 50%, better than 90% of stainless steel grades
Limitations
- Needs corrosion protection — 48/100, worse than 80% of stainless steel grades
1.4371 properties
Typical room-temperature values for 1.4371-CR-2B; bars are the position among stainless steel grades.
Physical3
1.4371 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical16
1.4371 has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4371 is rated for continuous service to 550°C (1,022 °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 16.5 µm/m·K (9.17 µin/in·°F).
Electrical3
1.4371 conducts electricity at 2.4 % IACS, better than 67% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 80% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4371 takes about 46 MJ of energy and emits 3.4 kg of CO₂ — less than 88% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
1.4371's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability very good (78/100); formability very good (82/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 1.4371 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4371
Is 1.4371 easy to machine?
Machines like a tough 200-series austenitic: rigid setups, sharp positive-rake carbide, heavy constant feed and flood coolant to avoid the severe work-hardened skin.
Can 1.4371 be welded?
Readily welded by GTAW/GMAW/resistance methods without preheat or post-weld anneal; use 307/308L-type or over-alloyed filler and keep interpass temperature low, avoid arc-air gouging fume issues from Mn.
Can 1.4371 be formed, bent or molded?
Excellent deep-drawing and roll-forming behaviour but very high work-hardening rate — expect 20–30 % higher press loads and greater springback than 304, and generous bend radii in cold-worked tempers.
1.4371 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 — sensitisation resistant | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.5 |
| Mnaustenite stabiliser replacing Ni | 6 – 8 | 7 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.02 | 0.01 |
| Cr | 16 – 17 | 16.5 |
| Ni | 3.5 – 5.5 | 4.5 |
| Nsolid-solution strengthening + austenite stability | 0.15 – 0.2 | 0.17 |
| Fe | balance |
What surface finishes work on 1.4371?
Supplied as 2B/BA/No.4; pickle and passivate after welding, electropolish for hygiene or decorative work — not anodisable, and chloride-exposed surfaces should be coated.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 1.4371 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X2CrMnNiN17-7-5
How much does 1.4371 cost?
1.4371 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1.4371 — frequently asked
What is 1.4371 used for?
1.4371 is typically used for structural sheet components, consumer appliance panels, railings and trim and hardware. In short: low-nickel 301/304 substitute; good weldability for 200-series; limited corrosion resistance.
What is the yield strength of 1.4371?
1.4371 has a typical yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is 1.4371 easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Machines like a tough 200-series austenitic: rigid setups, sharp positive-rake carbide, heavy constant feed and flood coolant to avoid the severe work-hardened skin.
Can 1.4371 be welded?
Yes — weldability is rated very good (78/100). Readily welded by GTAW/GMAW/resistance methods without preheat or post-weld anneal; use 307/308L-type or over-alloyed filler and keep interpass temperature low, avoid arc-air gouging fume issues from Mn.
What surface finishes work on 1.4371?
Supplied as 2B/BA/No.4; pickle and passivate after welding, electropolish for hygiene or decorative work — not anodisable, and chloride-exposed surfaces should be coated.
Can 1.4371 be formed, bent or molded?
Excellent deep-drawing and roll-forming behaviour but very high work-hardening rate — expect 20–30 % higher press loads and greater springback than 304, and generous bend radii in cold-worked tempers.
What is the maximum service temperature of 1.4371?
1.4371 is rated for continuous use to about 550°C (1,022 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4371 CR-2B and 1.4371-C1300?
CR-2B is the default condition — default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication. C1300: spring-temper strip/wire for flat springs and clips; essentially no cold formability beyond gentle bends. Yield strength is 420 MPa in CR-2B versus 1,150 MPa in C1300.
How much does 1.4371 cost?
1.4371 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10088-1 Stainless steels — List of stainless steels — CEN (2014)
- EN 10088-2 Stainless steels — Sheet/plate and strip for general purposes — CEN (2014)
- EN 10151 Stainless steel strip for springs (cold-worked tempers) — CEN (2002)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Low-nickel CrMnNi austenitic stainless strip datasheets (201LN / 1.4371 class) — Outokumpu / Acerinox / Aperam (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.