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ASTM A959 S21800 vs NF A35-574 Z7CN18-09

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

ASTM A959 S21800 (ASTM A959:2011) and NF A35-574 Z7CN18-09 (NF A35-574:1990) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 S21800 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while NF A35-574 Z7CN18-09 is commonly used for used for food processing equipment, kitchen equipment, chemical tanks, piping, architectural components, and fasteners.. ASTM A959 S21800 is defined under ASTM International, originating from United States, while NF A35-574 Z7CN18-09 is defined under Association Francaise de Normalisation (NF), originating from France.

As per chemical composition, ASTM A959 S21800 vs NF A35-574 Z7CN18-09 is a 70.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With ASTM A959 S21800:
GOST 5632 08X18H10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10 EN 10088-1 1.4401
Match Breakdown
CHEMISTRY MATCH
70.4%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property ASTM A959 S21800 NF A35-574 Z7CN18-09
Standard ASTM A959:2011 NF A35-574:1990
Category Stainless Steel Stainless Steel
C (%) <=0.10 0.08 max
Cr (%) 16.0-18.0 17.00-19.00
Mn (%) 7.0-9.0 2.00 max
N (%) 0.08-0.18 Not specified
Ni (%) 8.0-9.0 8.00-10.50
P (%) <=0.060 0.045 max
S (%) <=0.030 0.030 max
Si (%) 3.5-4.5 1.00 max
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A959 S21800 NF A35-574 Z7CN18-09
Tensile Strength Not specified 500-700 MPa
Yield Strength Not specified 190-250 MPa
Elongation Not specified 40-55%
Hardness Not specified 140-210 HB
Typical Applications
ASTM A959 S21800
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
NF A35-574 Z7CN18-09
Used for food processing equipment, kitchen equipment, chemical tanks, piping, architectural components, and fasteners.
Key Differences
Can ASTM A959 S21800 Be Substituted With NF A35-574 Z7CN18-09?
ASTM A959 S21800 and NF A35-574 Z7CN18-09 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
ASTM A959 S21800
No active listings currently.
NF A35-574 Z7CN18-09
Sheet → (2 listings)
Thickness: 6–6 mm (0.24–0.24 in)
Width: 1250–1250 mm (49.21–49.21 in)
Length: 2600–2900 mm (102.36–114.17 in)
On M-EX Right Now
ASTM A959 S21800
0 active listings and RFQs →
NF A35-574 Z7CN18-09
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A959 S21800 and NF A35-574 Z7CN18-09?
ASTM A959 S21800 specifies N which is not specified for NF A35-574 Z7CN18-09.
Can ASTM A959 S21800 be substituted with NF A35-574 Z7CN18-09?
ASTM A959 S21800 and NF A35-574 Z7CN18-09 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.