A681 Type L3 T61203 - ASTM A681-2024

A681 Type L3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	V	More
Minimum Value	0.95	0.1	0.25	-	-	1.3	0.1	Ni+Cu≤0.75
Maximum Value	1.1	0.5	0.8	0.03	0.03	1.7	0.3	Ni+Cu≤0.75

A681 Type L3 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
condition of delivery	Cold Drawing	BHN ≤241
condition of delivery	Annealing	BHN ≤201
specimen	Preheat at 649±14 ℃, heat at 843±5.6℃(controlled atmosphere) or 829℃(salt bath), hold for 5 to 15 min, oil cool. Temper at 204±5.6℃ once for 2 h	HRC ≥62

Approximate Comparison Table Plastic Mold Steel

A681TypeL3 Corresponding Standards(Same grade name, different standards)

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