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ASTM A681:2008 P6 Steel: Specifications & Listings

ASTM A681:2008 P6: P6: mold steel (UNS T51606). Specified in A681:2008.

Category: Tool & Die Steels
Grade Details
GradeASTM A681:2008 P6
Standard ASTM A681:2008
ApplicationsTools, dies and fixtures (clause 1.2)
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 1570 (Part 6) T30Ni16Cr5 IS 1570 (Part 6):1996 Close Alternative
IS 1570 (Part 6) T60Ni5 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) T40Ni14 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) T55Ni6Cr3 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 60T6 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 65T6 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 70T6 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 75T6 IS 1570 (Part 6):1996 Related Material
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn P S Si Cr Ni
0.05-0.15 0.35-0.70 <=0.030 <=0.030 0.10-0.40 1.25-1.75 3.25-3.75
Mechanical Properties
Hardness <=212 HB
Condition Annealed (maximum Brinell hardness)

More data from ASTM A681:2008

From the standard
Maximum hardness in delivery condition 1 condition
ConditionMaximum hardness (HB)
Annealed212
Maximum Brinell hardness (BHN).
Source: A681:2008, Table 2

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