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IS 1570 (Part 6) XT33W9Cr3V4 vs BS 4659 BH21

Close Alternative — 79.3% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 6) XT33W9Cr3V4 (IS 1570 (Part 6):1996) and BS 4659 BH21 (BS 4659:1989) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) XT33W9Cr3V4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 4659 BH21 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 6) XT33W9Cr3V4 vs BS 4659 BH21 is a 79.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 79.3%.

Frequently Compared With IS 1570 (Part 6) XT33W9Cr3V4:
GOST 5950 3H2W8F GOST 5950 4H5MFS1 EN ISO 4957 1.2316 GOST 5950 4H5MFS EN ISO 683-17 100Cr6 IS 1570 (Part 6) 103T3 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV
Match Breakdown
CHEMISTRY MATCH
79.3%
MECHANICAL MATCH
No shared data
OVERALL
79.3%
Specifications
Property IS 1570 (Part 6) XT33W9Cr3V4 BS 4659 BH21
Standard IS 1570 (Part 6):1996 BS 4659:1989
Category Tool & Die Steels Tool & Die Steels
C (%) 0.25-0.40 0.26–0.36
Si (%) 0.10-0.35 Not specified
Mn (%) 0.20-0.40 0.15–0.40
Cr (%) 2.80-3.30 3.00–3.75
V (%) 0.25-0.50 0.30–0.60
W (%) 8.0-10.0 8.50–10.00
P (%) <=0.035 Not specified
S (%) <=0.035 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 6) XT33W9Cr3V4 BS 4659 BH21
Hardness HRC (hardened) Not specified 36–54
Hardness HB (annealed) Not specified ≤229
Typical Applications
IS 1570 (Part 6) XT33W9Cr3V4
Not documented
BS 4659 BH21
Hot extrusion dies, brass/bronze forging dies
Key Differences
Can IS 1570 (Part 6) XT33W9Cr3V4 Be Substituted With BS 4659 BH21?
IS 1570 (Part 6) XT33W9Cr3V4 and BS 4659 BH21 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
IS 1570 (Part 6) XT33W9Cr3V4
No active listings currently.
BS 4659 BH21
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 4400–4600 mm (173.23–181.1 in)
On M-EX Right Now
IS 1570 (Part 6) XT33W9Cr3V4
0 active listings and RFQs →
BS 4659 BH21
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 6) XT33W9Cr3V4 and BS 4659 BH21?
IS 1570 (Part 6) XT33W9Cr3V4 specifies Si, P, S which are not specified for BS 4659 BH21.
Can IS 1570 (Part 6) XT33W9Cr3V4 be substituted with BS 4659 BH21?
IS 1570 (Part 6) XT33W9Cr3V4 and BS 4659 BH21 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.