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GB/T 3077 30Cr2Ni2Mo vs IS 1570 (Part 5) X108Cr17Mo

Related Material — 65% match based on chemical composition and mechanical property overlap.

GB/T 3077 30Cr2Ni2Mo (GB/T 3077:2015) and IS 1570 (Part 5) X108Cr17Mo (IS 1570 (Part 5):1985) are both steel grades. GB/T 3077 30Cr2Ni2Mo is classified under Alloy Steel, while IS 1570 (Part 5) X108Cr17Mo is classified under Stainless Steel — a different category, which is worth noting alongside the chemistry match below. GB/T 3077 30Cr2Ni2Mo is defined under Guobiao Standards (GB/T), originating from China, while IS 1570 (Part 5) X108Cr17Mo is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 3077 30Cr2Ni2Mo vs IS 1570 (Part 5) X108Cr17Mo is a 57.3% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 65%.

Frequently Compared With GB/T 3077 30Cr2Ni2Mo:
IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 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 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
57.3%
MECHANICAL MATCH
100%
OVERALL
65%
Specifications
Property GB/T 3077 30Cr2Ni2Mo IS 1570 (Part 5) X108Cr17Mo
Standard GB/T 3077:2015 IS 1570 (Part 5):1985
Category Alloy Steel Stainless Steel
C (%) 0.26-0.34 0.95-1.20
Si (%) 0.17-0.37 <=1.0
Mn (%) 0.50-0.80 <=1.0
Cr (%) 1.80-2.20 16.0-18.0
Mo (%) 0.30-0.50 <=0.75
Ni (%) 1.80-2.20 <=0.50
P (%) <=0.030 <=0.045
S (%) <=0.030 <=0.030
Cu (%) <=0.30 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 GB/T 3077 30Cr2Ni2Mo IS 1570 (Part 5) X108Cr17Mo
Tensile Strength >=980 MPa Not specified
Yield Strength >=835 MPa Not specified
Elongation >=10% Not specified
Hardness <=269 HB <=269 HB
Condition Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered Annealed, quenched or solution treated plates, sheets and strips (Table 2)
Typical Applications
GB/T 3077 30Cr2Ni2Mo
Hot-rolled or forged structural alloy steel bars
IS 1570 (Part 5) X108Cr17Mo
Not documented
Key Differences
Can GB/T 3077 30Cr2Ni2Mo Be Substituted With IS 1570 (Part 5) X108Cr17Mo?
GB/T 3077 30Cr2Ni2Mo and IS 1570 (Part 5) X108Cr17Mo 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.
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GB/T 3077 30Cr2Ni2Mo
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IS 1570 (Part 5) X108Cr17Mo
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Frequently Asked Questions
What is the difference between GB/T 3077 30Cr2Ni2Mo and IS 1570 (Part 5) X108Cr17Mo?
Different category: GB/T 3077 30Cr2Ni2Mo is Alloy Steel, IS 1570 (Part 5) X108Cr17Mo is Stainless Steel. GB/T 3077 30Cr2Ni2Mo specifies Cu which is not specified for IS 1570 (Part 5) X108Cr17Mo.
Can GB/T 3077 30Cr2Ni2Mo be substituted with IS 1570 (Part 5) X108Cr17Mo?
GB/T 3077 30Cr2Ni2Mo and IS 1570 (Part 5) X108Cr17Mo 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.