Carbon Plate - C1020
/ C1045 - ASTM A 830
Standard specification for Carbon steel Plate Furnished to
Chemical
Composition Requirements
ASTM A 830 was first issued in 1984; prior to that the C1020
and C1045 chemistries were defined by AISI specifications.
This specification covers structural quality carbon steel plates
furnished to chemical composition requirements only. There are
no tensile requirements or other mechanical property requirements
for this specification.
The ASTM A 830 specification covers 48 standard chemistries.
Oliver Steel offers two of these chemistry-only plate grades.
C1020 offers better machinability than the normal low carbon
commercial alternative of A36. C1045 provides higher strength
and hardness levels and is readily flame hardened. Both have
a much lower cost than free-machining grades of similar carbon
levels.
General requirements for delivery
Material shall conform to the requirements of ASTM A 6.
Chemical Requirements
Single values are maximums.
Tensile Requirements
There are no mechanical property requirements for these grades.
Generally, low carbon steels with 0.20% nominal carbon have
a hardness of about 120 – 170 Bhn; medium carbon steels
have hardness of around 170 – 230 Bhn.
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