| A1061/8″ – 26″ | Covers SEAMLESS nominal size and wall pipe for high-temperature service, suitable for bending, flanging, and similar forming operations. |
| STD, XS AND | |
| XXS ANSI B36.10 |
|
| Heat treated cold drawn pipe may be furnished to this specification. Optional supplementary requirements may be specified when pipe 8 inch and larger is intended for use where a superior grade is required. | |
| Other sizes and dimensions may be furnished | |
|
Hydrostatic Testing
|
|
|
|
|
| Hydrostatic test pressures are calculated using the Barlow formula. Each pipe shall be tested to 60 percent of specified minimum yield strength, but not exceeding 2500 psi for 3 inch nominal size or smaller, or 2800 psi for sizes over 3 inch. | |
|
Permissible Variations in Weights Per Foot
|
|
|
|
|
| Pipe shall not vary more than 6.5 percent over and 3.5 percent under weights shown in ANSI B36.10. | |
| Sizes 4 inch and smaller are weighed in convenient lots. Pipe in sizes larger than 4 inch is weighed separately. | |
PIPE SPECIFICATIONS
|
Permissible Variations in OD |
|||
|
|
|||
| A106 | OUTSIDE DIAMETER shall not exceed variations as listed below: | ||
| 1/8″ – 26″ |
Nominal Pipe Size |
Over, Inch |
Under, Inch |
|
|
|||
| STD, XS and XXS ANSI B36.10 Other sizes and
dimensions may be furnished |
1/8 to 1-1/2, incl
Over 1-1/2 to 4, incl Over 4 to 8, incl Over 8 to 18, incl Over 18 to 26, incl |
1/64 (0.015)
1/32 (0.031) 1/16 (0.062) 3/32 (0.093) 1/8 (0.125) |
1/64 (0.015)
1/32 (0.031) 1/32 (0.031) 1/32 (0.031) 1/32 (0.031) |
|
Permissible Variations in Wall Thickness
|
|
|
| Minimum wall thickness at any point shall not be more than 12.5 percent under nominal wall thickness specified. Specification contains a table of minimum wall thicknesses on inspection calculated as 0.875 x nominal wall. |
|
Chemical Requirements
|
||||||
|
|
||||||
| Composition, max. percent | ||||||
|
C
max. |
Mn
|
P
max. |
S
max. |
Si
min. |
||
|
|
||||||
| Grade A |
0.25
|
0.27/0.93
|
0.035
|
0.035
|
0.10
|
|
| Grade B |
0.30
|
0.29/1.06
|
0.035
|
0.035
|
0.10
|
|
| Grade C |
0.35
|
0.29/1.06
|
0.035
|
0.035
|
0.10
|
|
|
Tensile Requirements
|
|||
|
|
|||
|
Tensile Strength
min, psi |
Yield Point
min, psi |
||
|
|
|||
|
Grade A
|
48,000
|
30,000
|
|
|
Grade B
|
60,000
|
35,000
|
|
|
Grade C
|
70,000
|
40,000
|
|
| Table lists minimum elongation values. | |||
PIPE SPECIFICATIONS
|
Mechanical Tests Specified |
|
|
|
|
| A1061/8″ – 26″ | TENSILE TEST Required on all sizes. |
| STD, XS AND XXS ANSI B36.10 |
|
| BEND TEST Required on sizes 2 inch and smaller. Pipe shall stand cold bending through 90 degrees around a mandrel with a diameter twelve times the nominal diameter of the pipe without cracking. If for close coiling bend shall be 180 degrees around diameter eight times the nominal diameter of pipe. |
|
| Other sizes and dimensions may be furnished | |
| FLATTENING TEST Required on sizes over 2 inch in nominal diameter. |
|
