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ASTM A681 O6 vs GB/T 1299 3Cr2W8V

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

ASTM A681 O6 (ASTM A681:2008) and GB/T 1299 3Cr2W8V (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 O6 is typically used for tools, dies and fixtures (clause 1.2), while GB/T 1299 3Cr2W8V is commonly used for used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.. ASTM A681 O6 is defined under ASTM International, originating from United States, while GB/T 1299 3Cr2W8V is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, ASTM A681 O6 vs GB/T 1299 3Cr2W8V is a 52.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A681 O6:
EN ISO 683-17 100Cr6 GOST 5950 3H2W8F DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 IS 1570 (Part 6) 103T3 GOST 5950 4H5MFS1 IS 1570 (Part 6) 133T3
Match Breakdown
CHEMISTRY MATCH
52.6%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A681 O6 GB/T 1299 3Cr2W8V
Standard ASTM A681:2008 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 1.25-1.55 0.30-0.40
Mn (%) 0.30-1.10 0.20-0.50
P (%) <=0.030 0.030 max
S (%) <=0.030 0.030 max
Si (%) 0.55-1.50 0.20-0.40
Cr (%) <=0.30 2.20-2.70
Mo (%) 0.20-0.30 Not specified
W (%) Not specified 7.50-9.00
V (%) Not specified 0.20-0.50
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A681 O6 GB/T 1299 3Cr2W8V
Hardness <=229 HB 48-54 HRC
Condition Annealed (maximum Brinell hardness) Not specified
Tensile Strength Not specified 1180-1380 MPa
Yield Strength Not specified 980-1180 MPa
Elongation Not specified 10-14%
Typical Applications
ASTM A681 O6
Tools, dies and fixtures (clause 1.2)
GB/T 1299 3Cr2W8V
Used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.
Key Differences
Can ASTM A681 O6 Be Substituted With GB/T 1299 3Cr2W8V?
ASTM A681 O6 and GB/T 1299 3Cr2W8V 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
ASTM A681 O6
No active listings currently.
GB/T 1299 3Cr2W8V
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–2900 mm (110.24–114.17 in)
On M-EX Right Now
ASTM A681 O6
0 active listings and RFQs →
GB/T 1299 3Cr2W8V
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 O6 and GB/T 1299 3Cr2W8V?
ASTM A681 O6 specifies Mo which is not specified for GB/T 1299 3Cr2W8V. GB/T 1299 3Cr2W8V specifies W, V which are not specified for ASTM A681 O6.
Can ASTM A681 O6 be substituted with GB/T 1299 3Cr2W8V?
ASTM A681 O6 and GB/T 1299 3Cr2W8V 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.