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IS 1570 (Part 7) 20Mo5H vs IS 11169 (Part 1) 21C13BT

Related Material — 68.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 7) 20Mo5H (IS 1570 (Part 7):1992) and IS 11169 (Part 1) 21C13BT (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 7) 20Mo5H is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while IS 11169 (Part 1) 21C13BT is commonly used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c). IS 1570 (Part 7) 20Mo5H is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 21C13BT is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 7) 20Mo5H vs IS 11169 (Part 1) 21C13BT is a 68.4% 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 68.4%.

Frequently Compared With IS 1570 (Part 7) 20Mo5H:
IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
68.4%
MECHANICAL MATCH
No shared data
OVERALL
68.4%
Specifications
Property IS 1570 (Part 7) 20Mo5H IS 11169 (Part 1) 21C13BT
Standard IS 1570 (Part 7):1992 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.15-0.25 0.18-0.23
Si (%) 0.10-0.35 Not specified
Mn (%) 0.90-1.40 1.10-1.40
P (%) <=0.04 <=0.040
S (%) <=0.04 <=0.050
Cr (%) <=0.30 <=0.20
Ni (%) <=0.30 <=0.25
Mo (%) 0.40-0.60 <=0.060
Al (metallic) (%) <=0.02 Not specified
Cu (%) <=0.30 <=0.35
B (%) Not specified 0.0005-0.003
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) 20Mo5H IS 11169 (Part 1) 21C13BT
Tensile Strength 510-660 MPa Not specified
Yield Strength >=355 MPa (0.2 % proof stress) Not specified
Elongation >=21% Not specified
Condition Steel plates, N+T, thickness over 3 to 16 (first row of Table 3) Not specified
Typical Applications
IS 1570 (Part 7) 20Mo5H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
IS 11169 (Part 1) 21C13BT
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
Key Differences
Can IS 1570 (Part 7) 20Mo5H Be Substituted With IS 11169 (Part 1) 21C13BT?
IS 1570 (Part 7) 20Mo5H and IS 11169 (Part 1) 21C13BT 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.
On M-EX Right Now
IS 1570 (Part 7) 20Mo5H
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IS 11169 (Part 1) 21C13BT
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Frequently Asked Questions
What is the difference between IS 1570 (Part 7) 20Mo5H and IS 11169 (Part 1) 21C13BT?
IS 1570 (Part 7) 20Mo5H specifies Si, Al (metallic) which are not specified for IS 11169 (Part 1) 21C13BT. IS 11169 (Part 1) 21C13BT specifies B which is not specified for IS 1570 (Part 7) 20Mo5H.
Can IS 1570 (Part 7) 20Mo5H be substituted with IS 11169 (Part 1) 21C13BT?
IS 1570 (Part 7) 20Mo5H and IS 11169 (Part 1) 21C13BT 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.