Oil Wash
1
Low carbon steel specification ranges from LTP’s steel mills are as
below. LTP uses the steel for plain oil
finish products (oil wash) for general purpose applications, electro-zinc
plated products for applications that require excellent corrosion resistance,
and hot-dipped galvanized products that provide corrosion resistance for harsh
environments.
Ø Products will meet the
chemical and physical requirements for SAE J429 Grade 1 and metric Property
Class 4.6 (ASTM F568 1979), but LTP does not provide the mechanical testing
results. Products 3/4-10 and larger will
meet the tensile requirements of SAE J429 Grade 2.
Ø Products will meet
specifications for ASTM A108 and for the tensile of ASTM A307 grade A only.
Ø LTP relies upon the steel
mills and suppliers to provide tensile and chemical tests only.
Ø LTP will not sell products
certified to SAE Grade 1, metric Property Class 4.6 or A307.
Ø Steel designations are 1008
through 1022 and may vary depending on product diameter. LTP normally uses C1018 for all
applications. LTP may use other grades
upon customer requirement or approval or general industry standards.
2
Rod sizes: range from 1/4-20 through 3/4-10 pitch diameter sizes
cold-drawn from hot-rolled coil
3
Bar sizes: above 3/4-16 through 2-4 1/2 pitch diameter sizes
4
Wire diameter sizes: sizes 4-40 through 12-24
5
Low carbon non-resulferized steel chemistry and minimum tensile varies on
material designation and amount of cold-drawing in the process. Raw material melt specifications are as
follows (per Gerdau Ameristeel, restricted within AISI spec. as of
6
Chemical and physical information per IFI manual (except C1008-C1022 which
LTP determined with its suppliers).
7
Chemical Analysis for C, MN, P, S required to
be in spec.
Grade 1008:
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.050 |
0.30 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
|
Max |
.100 |
0.50 |
,040 |
.050 |
.200 |
.400 |
.400 |
.400 |
.200 |
.060 |
.020 |
.000 |
.000 |
.000 |
.000 |
Grade
1018
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.150 |
0.60 |
.000 |
.000 |
.150 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
.000 |
|
Max |
.200 |
0.90 |
.040 |
.050 |
.250 |
.270 |
.150 |
.150 |
.100 |
.025 |
.010 |
.000 |
.000 |
.000 |
.000 |
Grade
1038
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.350 |
0.60 |
.000 |
.000 |
.000 |
|
|
|
|
|
|
|
|
|
|
|
Max |
.420 |
0.90 |
.040 |
.050 |
.300 |
|
|
|
|
|
|
|
|
|
|
Grade
1040
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.370 |
0.60 |
.000 |
.000 |
|
|
|
|
|
|
|
|
|
|
|
|
Max |
.440 |
0.90 |
.040 |
.050 |
|
|
|
|
|
|
|
|
|
|
|
Grade
1045
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.430 |
0.60 |
.000 |
.000 |
|
|
|
|
|
|
|
|
|
|
|
|
Max |
.500 |
0.90 |
.040 |
.050 |
|
|
|
|
|
|
|
|
|
|
|
Grade 4140
|
|
C |
MN |
P |
S |
SI |
CU |
NI |
CR |
MO |
SN |
N |
B |
|
V |
CB |
|
Min |
.380 |
0.75 |
.000 |
.000 |
.150 |
|
|
.080 |
|
|
|
|
|
|
|