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IS 1570 (Part 4) 21Cr4Mo2 vs UNI 11234 100Cr6

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

IS 1570 (Part 4) 21Cr4Mo2 (IS 1570 (Part 4):1988) and UNI 11234 100Cr6 (UNI 11234:2007) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 21Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while UNI 11234 100Cr6 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy.

As per chemical composition, IS 1570 (Part 4) 21Cr4Mo2 vs UNI 11234 100Cr6 is a 64.6% match. As per mechanical properties, the match is 40%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 1570 (Part 4) 21Cr4Mo2:
IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 12Cr4Mo5H IS 1570 (Part 7) 10Mo6H IS 1570 (Part 7) 12Cr2Mo5V2H IS 11169 (Part 1) 12Cr4Mo2 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 12Cr9Mo10H GOST 4543 12HN3A IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
64.6%
MECHANICAL MATCH
40%
OVERALL
35%
Specifications
Property IS 1570 (Part 4) 21Cr4Mo2 UNI 11234 100Cr6
Standard IS 1570 (Part 4):1988 UNI 11234:2007
Category Alloy Steel Alloy Steel
C (%) <=0.26 0.93-1.05
Si (%) 0.10-0.35 0.15-0.35
Mn (%) 0.60-0.90 0.25-0.45
Cr (%) 0.90-1.20 1.35-1.65
Mo (%) 0.15-0.30 Not specified
P (%) Not specified <=0.025
S (%) Not specified <=0.025
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 4) 21Cr4Mo2 UNI 11234 100Cr6
Tensile Strength 790-990 MPa 750-1000 MPa
Yield Strength >=610 MPa 400-600 MPa
Condition Sheet and strip, hardened and tempered or cold rolled and tempered Not specified
Elongation Not specified 10-14 %
Hardness Not specified 60-64 HRC
Typical Applications
IS 1570 (Part 4) 21Cr4Mo2
Not documented
UNI 11234 100Cr6
ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components
Key Differences
Can IS 1570 (Part 4) 21Cr4Mo2 Be Substituted With UNI 11234 100Cr6?
IS 1570 (Part 4) 21Cr4Mo2 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
IS 1570 (Part 4) 21Cr4Mo2
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
IS 1570 (Part 4) 21Cr4Mo2
0 active listings and RFQs →
UNI 11234 100Cr6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 21Cr4Mo2 and UNI 11234 100Cr6?
IS 1570 (Part 4) 21Cr4Mo2 specifies Mo which is not specified for UNI 11234 100Cr6. UNI 11234 100Cr6 specifies P, S which are not specified for IS 1570 (Part 4) 21Cr4Mo2.
Can IS 1570 (Part 4) 21Cr4Mo2 be substituted with UNI 11234 100Cr6?
IS 1570 (Part 4) 21Cr4Mo2 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.