What Grade Is EN 1.4016 Equivalent To? X6Cr17 vs AISI 430

What Is EN 1.4016 (X6Cr17)?

EN 1.4016, also designated X6Cr17, is a ferritic stainless steel that combines a 16–18% chromium content with a very low carbon level. The grade is fully ferritic and therefore magnetic in all conditions, contains no deliberate nickel addition, and is one of the lowest-cost stainless steels available in sheet, strip, coil, plate and bar. Its chromium content gives good resistance to atmospheric, fresh-water and mildly corrosive media, while the absence of nickel makes it both cheaper and noticeably more thermally conductive than austenitic grades such as 304. It also resists oxidation at elevated temperature, which is why it appears in exhaust and heating components.

Grade Equivalents Across Standards

Standard	Designation
EN 10088 / EN 10095	1.4016 - X6Cr17
AISI / ASTM A240	430
UNS	S43000
JIS G4305	SUS430
GB/T 3280	10Cr17

These equivalents share similar chemical composition and mechanical properties and are interchangeable in the great majority of applications, although the exact carbon limit differs slightly between the European and American specifications.

Chemical Composition of EN 1.4016 / AISI 430

Element	EN 1.4016 (X6Cr17)	ASTM A240 grade 430 (S43000)
Carbon (C)	0.08% max	0.12% max
Chromium (Cr)	16.00–18.00%	16.00–18.00%
Manganese (Mn)	1.00% max	1.00% max
Silicon (Si)	1.00% max	1.00% max
Phosphorus (P)	0.040% max	0.040% max
Sulfur (S)	0.015% max	0.030% max
Nickel (Ni)	No deliberate addition; residual only	0.75% max

Mechanical Properties

Values below are the annealed-condition requirements for grade 430 (UNS S43000) sheet and strip; EN 10088-2 specifies comparable minima for 1.4016 in the soft-annealed condition.

Property	Requirement (annealed)
Tensile strength, Rm	450 MPa min
0.2% proof strength, Rp0.2	205 MPa min
Elongation, A50	22% min
Hardness	89 HRB (200 HV) max
Density	7.7 g/cm³
Modulus of elasticity	about 200 GPa

EN 1.4016 vs 304 and Typical Applications

Compared with 304, EN 1.4016 is less corrosion-resistant, does not tolerate chloride-bearing or strongly acidic environments, and cannot be deep drawn as severely, but it is significantly cheaper, magnetic, and more resistant to high-temperature oxidation and thermal fatigue. That balance makes it the standard choice for dry, indoor or mildly corrosive duties.

Automotive trim, grilles and exhaust system components.

Kitchen appliances, oven liners, dishwasher fronts and cookware exteriors.

Architectural panels, cladding and indoor decorative elements.

Furniture, sanitary ware trim and general hardware.

Heat-exchanger and furnace parts where oxidation resistance rather than chloride resistance is required.

Grade 430 is not recommended for coastal, marine, swimming-pool or chemical-process service; in those environments grade 304 or a molybdenum-bearing grade should be specified instead.

Frequently Asked Questions

Q: Is EN 1.4016 exactly the same as 430 stainless steel?
In practice yes. EN 1.4016 (X6Cr17) is equivalent to AISI/ASTM 430 (UNS S43000) in composition and performance, with only a small difference in the permitted carbon level between the European and American specifications.

Q: Is 1.4016 stainless steel magnetic?
Yes. It is a ferritic grade with a body-centred cubic structure, so it is fully magnetic in the annealed, cold-worked and welded condition.

Q: What is the chemical composition of 1.4016?
It contains 16.0–18.0% chromium, 0.08% maximum carbon, up to 1.00% manganese and silicon, and no deliberate nickel addition; the low carbon and high chromium combination provides the corrosion and oxidation resistance of the grade.

Q: How strong is EN 1.4016 / AISI 430 in the annealed condition?
Annealed sheet typically meets a minimum tensile strength of 450 MPa, a 0.2% proof strength of 205 MPa and 22% elongation, with hardness capped at 89 HRB / 200 HV.

Q: What are the typical applications of X6Cr17?
Automotive trim and exhaust parts, kitchen appliances, architectural panels and indoor decorative components - anywhere moderate corrosion resistance, good heat resistance and an attractive finish are required.

Q: Can 1.4016 replace 304 stainless steel?
Only in dry or mildly corrosive service. It is less corrosion-resistant and unsuitable for chloride-rich or strongly acidic environments, although it is cheaper, magnetic and more oxidation-resistant at high temperature.