Post Stock Login Register

ASTM A387/A387M Grade 12 vs NF A35-565 100C6

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

ASTM A387/A387M Grade 12 (ASTM A387/A387M:2011) and NF A35-565 100C6 are both steel grades. Both fall under the Alloy Steel category. ASTM A387/A387M Grade 12 is typically used for welded boilers and pressure vessels for elevated temperature service, while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts. ASTM A387/A387M Grade 12 is defined under ASTM International, originating from United States, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.

As per chemical composition, ASTM A387/A387M Grade 12 vs NF A35-565 100C6 is a 67.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A387/A387M Grade 12:
IS 1570 (Part 7) 12Cr4Mo5H IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
67.9%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A387/A387M Grade 12 NF A35-565 100C6
Standard ASTM A387/A387M:2011 NF A35-565
Category Alloy Steel Alloy Steel
C (%) 0.05-0.17 0.95-1.05
Mn (%) 0.40-0.65 0.25-0.45
P (%) <=0.025 <=0.027
S (%) <=0.025 <=0.025
Si (%) 0.15-0.40 0.15-0.35
Cr (%) 0.80-1.15 1.35-1.65
Mo (%) 0.45-0.60 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A387/A387M Grade 12 NF A35-565 100C6
Tensile Strength 380-550 MPa 850-1100 MPa
Yield Strength >=230 MPa Not specified
Elongation >=22% Not specified
Condition Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length Not specified
Hardness Not specified 60-66 HRC
Typical Applications
ASTM A387/A387M Grade 12
Welded boilers and pressure vessels for elevated temperature service
NF A35-565 100C6
ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts
Key Differences
Can ASTM A387/A387M Grade 12 Be Substituted With NF A35-565 100C6?
ASTM A387/A387M Grade 12 and NF A35-565 100C6 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 A387/A387M Grade 12
No active listings currently.
NF A35-565 100C6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6700–6700 mm (263.78–263.78 in)
On M-EX Right Now
ASTM A387/A387M Grade 12
0 active listings and RFQs →
NF A35-565 100C6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A387/A387M Grade 12 and NF A35-565 100C6?
ASTM A387/A387M Grade 12 specifies Mo which is not specified for NF A35-565 100C6.
Can ASTM A387/A387M Grade 12 be substituted with NF A35-565 100C6?
ASTM A387/A387M Grade 12 and NF A35-565 100C6 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.