|
Standard Tolerances--AMERICAN Ceram-Spun Tubes
AMC Standard Tolerances--AMERICAN Ceram-Spun Tubes
| As-Cast Surfaces |
Size
Range-O.D. |
Outside
Diameter |
Inside (3" Minimum)
Diameter For These Thickness Ranges: |
| |
|
Up to 1.25" |
1.26/2.00" |
2.01/3.50" |
| 4.00/12.00" |
± .10" |
± .10" |
± .15" |
± .20" |
| 12.01/24.50" |
± .12" |
± .12" |
± .18" |
± .24" |
| 24.51/36.00" |
± .16" |
± .16" |
± .24" |
± .32" |
| 36.01/55.00" |
± .25" |
± .20" |
± .30" |
± .38" |
Notes:
All sizes and tolerances are based on diametrical dimensions or overall lengths in inches. For thicknesses greater than 3.50", tolerances will be furnished on specific request. * Torch cut lengths should be specified 1" longer than finished length.
AMC Typical Machining Tolerances--All Sizes
| Typical Machining Tolerances--All Sizes |
Diametrical Tolerances:
Rough Turned or Bored: ± .030"
Finished Turned or Bored: ± .010"
Honed as Specified |
Length Tolerances:*
Abrasive Saw Cut: + .25" -.00"
Machine Cut: + .12" -.00"
Closer tolerances available if required. |
AMERICAN Standard Metal Compositions
. . . any ferrous castable alloy.
One of the unique benefits available to customers of AMERICAN CENTRIFUGAL is the many metal types available. All ferrous castable alloys can be melted and poured at AMERICAN CENTRIFUGAL. One of the standard compositions, shown on the following pages, may be selected or metal may be melted to meet the specific needs of the customer.
Heat sizes are appropriate to the weight of the castings to be poured. Thus, it is not necessary to confine selection to available material, nor is it necessary to pay a premium if only a small heat is required.
Quicker shipments and other economies may result from the selection of one of the standard compositions shown on the following pages. However, if metal compositions or properties are needed which are not shown, consideration can be given to other specifications.
If preferable, the tensile or yield strengths may be specified, or hardness may be specified. Greater economy is achieved if the customer will list the desired properties and allow our metallurgical staff to suggest the appropriate composition and/or heat treatment to achieve the desired results.
Carbon and Low Alloy Steels
AMC Carbon and Low Alloy Steels
AMERICAN
Type
|
Representative Mechancial
Properties for tubes of 1" wall thickness. Properties of other
tubes or castings will be furnished on request. |
Chemical Compositions %
Maximum unless otherwise shown |
|
Tensile
psi |
Yield
psi |
Elong.
% |
R.A. % |
C |
Mn |
P |
S |
Si
Min. |
Cr |
Mo |
Ni |
| 1005 |
48,000 |
25,000 |
35 |
55 |
0.08 |
.30-.60 |
0.05 |
0.05 |
0.15 |
(.35 % maximum total of Cr, Mo, Ni) |
(.35 % maximum total of Cr, Mo, Ni) |
(.35 % maximum total of Cr, Mo, Ni) |
| 1015 |
55,000 |
30,000 |
30 |
48 |
.10-.20 |
.30-.70 |
0.05 |
0.05 |
0.15 |
|
|
|
| 1020 |
60,000 |
30,000 |
24 |
35 |
.15-.25 |
.30-.70 |
0.05 |
0.05 |
0.15 |
|
|
|
| 1025 |
65,000 |
35,000 |
25 |
40 |
.20-.30 |
.30-.70 |
0.05 |
0.05 |
0.15 |
|
|
|
| 1035 |
75,000 |
40,000 |
20 |
30 |
.30-.40 |
.50-.90 |
0.05 |
0.05 |
0.15 |
|
|
|
| 1045 |
85,000 |
45,000 |
15 |
25 |
.40-.50 |
.50-.90 |
0.05 |
0.05 |
0.15 |
|
|
|
| 4130 |
80,000 |
50,000 |
18 |
35 |
.25-.35 |
.40-.70 |
0.05 |
0.05 |
0.15 |
.80-1.15 |
.15-.25 |
|
| 4140 |
90,000 |
60,000 |
16 |
30 |
.35-.45 |
.60-1.00 |
0.05 |
0.05 |
0.15 |
.80-1.15 |
.15-.25 |
|
| 4330 |
100,000 |
60,000 |
16 |
30 |
.25-.35 |
.40-.70 |
0.05 |
0.05 |
0.15 |
.60-.90 |
.20-.30 |
1.65-2.00 |
| 5015 |
60,000 |
30,000 |
24 |
35 |
.10-.20 |
.30-.60 |
0.04 |
0.04 |
0.15 |
.30-.50 |
|
|
| 8620 |
70,000 |
40,000 |
22 |
40 |
.15-.25 |
.60-1.00 |
0.05 |
0.05 |
0.15 |
.40-.70 |
.15-.25 |
.40-.70 |
| 52100 |
Furnished spheroidized annealed for best machinability |
Furnished spheroidized annealed for best machinability |
Furnished spheroidized annealed for best machinability |
Furnished spheroidized annealed for best machinability |
.98-1.10 |
.20-.50 |
0.03 |
0.03 |
0.15 |
1.30-1.60 |
|
|
AMC Ductile Irons and Cast Irons
| Specification |
Mechanical Properties--Minimum |
| Specification |
Grade |
Tensile
Strength
psi |
Yield
Strength
psi |
Elong.
in 2"
% |
P
Max. |
S
Max. |
| Ductile Irons |
|
|
|
|
|
|
| ASTM A536 |
60-42-10 |
60,000 |
42,000 |
10 |
-- |
-- |
| |
65-45-12 |
65,000 |
45,000 |
12 |
|
|
| |
70-50-05 |
70,000 |
50,000 |
5 |
|
|
| |
80-60-03 |
80,000 |
60,000 |
3 |
-- |
-- |
| Cast Irons |
|
|
|
|
|
|
| AMERICAN |
25 |
25,000 |
-- |
-- |
0.25 |
0.12 |
| AMERICAN |
30 |
30,000 |
-- |
-- |
0.25 |
0.12 |
| AMERICAN |
40 |
40,000 |
-- |
-- |
(alloy as necessary) |
(alloy as necessary) |
Government Specifications
| FEDERAL |
Federal Specification QQ-S-681F, Steel Castings, August 29, 1974 |
| ABS |
Am. Bur. of Shipping, Steel Vessels--1988 Rules Edition-- Machinery and Hull Castings |
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