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ASTM A387/A387M Grade 5 vs UNI 11234 100Cr6

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

ASTM A387/A387M Grade 5 (ASTM A387/A387M:2011) and UNI 11234 100Cr6 (UNI 11234:2007) are both steel grades. Both fall under the Alloy Steel category. ASTM A387/A387M Grade 5 is typically used for welded boilers and pressure vessels for elevated temperature service, while UNI 11234 100Cr6 is commonly used for ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components. ASTM A387/A387M Grade 5 is defined under ASTM International, originating from United States, while UNI 11234 100Cr6 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy.

As per chemical composition, ASTM A387/A387M Grade 5 vs UNI 11234 100Cr6 is a 67.6% 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 5:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 103Cr6
Match Breakdown
CHEMISTRY MATCH
67.6%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A387/A387M Grade 5 UNI 11234 100Cr6
Standard ASTM A387/A387M:2011 UNI 11234:2007
Category Alloy Steel Alloy Steel
C (%) <=0.15 0.93-1.05
Mn (%) 0.30-0.60 0.25-0.45
P (%) <=0.025 <=0.025
S (%) <=0.025 <=0.025
Si (%) <=0.50 0.15-0.35
Cr (%) 4.00-6.00 1.35-1.65
Mo (%) 0.45-0.65 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 5 UNI 11234 100Cr6
Tensile Strength 415-585 MPa 750-1000 MPa
Yield Strength >=205 MPa 400-600 MPa
Elongation >=18% 10-14 %
Condition Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length Not specified
Hardness Not specified 60-64 HRC
Typical Applications
ASTM A387/A387M Grade 5
Welded boilers and pressure vessels for elevated temperature service
UNI 11234 100Cr6
ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components
Key Differences
Can ASTM A387/A387M Grade 5 Be Substituted With UNI 11234 100Cr6?
ASTM A387/A387M Grade 5 and UNI 11234 100Cr6 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 5
No active listings currently.
UNI 11234 100Cr6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5700–6800 mm (224.41–267.72 in)
On M-EX Right Now
ASTM A387/A387M Grade 5
0 active listings and RFQs →
UNI 11234 100Cr6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A387/A387M Grade 5 and UNI 11234 100Cr6?
ASTM A387/A387M Grade 5 specifies Mo which is not specified for UNI 11234 100Cr6.
Can ASTM A387/A387M Grade 5 be substituted with UNI 11234 100Cr6?
ASTM A387/A387M Grade 5 and UNI 11234 100Cr6 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.