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IS 1570 (Part 7) 20CrNiMoNbVH vs UNI 11234 100Cr6

Minimal Match — 30.7% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 7) 20CrNiMoNbVH (IS 1570 (Part 7):1992) and UNI 11234 100Cr6 (UNI 11234:2007) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 7) 20CrNiMoNbVH is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while UNI 11234 100Cr6 is commonly used for ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components. IS 1570 (Part 7) 20CrNiMoNbVH 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 7) 20CrNiMoNbVH vs UNI 11234 100Cr6 is a 40.5% match. As per mechanical properties, the match is 11.1%. Combined, this makes them a minimal match overall at 30.7%.

Frequently Compared With IS 1570 (Part 7) 20CrNiMoNbVH:
IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
40.5%
MECHANICAL MATCH
11.1%
OVERALL
30.7%
Specifications
Property IS 1570 (Part 7) 20CrNiMoNbVH UNI 11234 100Cr6
Standard IS 1570 (Part 7):1992 UNI 11234:2007
Category Alloy Steel Alloy Steel
C (%) 0.16-0.24 0.93-1.05
Si (%) 0.10-0.50 0.15-0.35
Mn (%) 0.30-1.00 0.25-0.45
P (%) <=0.040 <=0.025
S (%) <=0.030 <=0.025
Cr (%) 10-12 1.35-1.65
Ni (%) 0.3-1.00 Not specified
Mo (%) 0.5-1.0 Not specified
V (%) 0.1-0.30 Not specified
Nb (%) 0.2-0.50 Not specified
B (%) <=0.008 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 IS 1570 (Part 7) 20CrNiMoNbVH UNI 11234 100Cr6
Tensile Strength 900-1050 MPa 750-1000 MPa
Yield Strength >=750 MPa (0.2 % proof stress) 400-600 MPa
Elongation >=10% 10-14 %
Condition Bars, forgings, Q+T, thickness up to 250 (first row of Table 3) Not specified
Hardness Not specified 60-64 HRC
Typical Applications
IS 1570 (Part 7) 20CrNiMoNbVH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
UNI 11234 100Cr6
ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components
Key Differences
Can IS 1570 (Part 7) 20CrNiMoNbVH Be Substituted With UNI 11234 100Cr6?
IS 1570 (Part 7) 20CrNiMoNbVH 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 7) 20CrNiMoNbVH
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 7) 20CrNiMoNbVH
0 active listings and RFQs →
UNI 11234 100Cr6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 7) 20CrNiMoNbVH and UNI 11234 100Cr6?
IS 1570 (Part 7) 20CrNiMoNbVH specifies Ni, Mo, V, Nb which are not specified for UNI 11234 100Cr6.
Can IS 1570 (Part 7) 20CrNiMoNbVH be substituted with UNI 11234 100Cr6?
IS 1570 (Part 7) 20CrNiMoNbVH 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.