WELDED HYDRAULIC TUBING
SAE J2467
SCOPE
This specification covers electric resistance welded, cold drawn, normalized, single-wall, SAE 1021 carbon steel pressure tubing. It is intended for use in pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, forming and brazing.
TESTING
Tubing produced to this specification will be submitted to the following test procedures according to SAE J1677; Flattening Test, Flaring Test, Reverse Flattening Test, Expansion Test, Hardness Test, Tensile Test, Pressure Proof Test, and a Nondestructive Electronic Test.
COMPARISON TO SAE J525
The grade of steel used to produce tubing to this specification differs from that of SAE J525 because it has higher carbon and manganese content. It is intended to service “high pressure” applications not recommended for SAE J525 tubing. Due to the chemistry, the forming characteristics will be somewhat diminished as compared to SAE J525.
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TUBING DIAMETER TOLERANCES
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Nominal Tube OD
(Inches) |
Tube OD Tolerance
(+/- Inches) |
Tube ID Tolerance
(+/- Inches) |
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Up to 3/8
|
.002
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.0020
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Over 3/8 to 5/8
|
.0025
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.0025
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Over 5/8 to 2
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.003
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.0030
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Over 2 to 2-1/2
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.004
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.0040
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Over 2-1/2 to 3
|
.005
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.0050
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Over 3 to 4
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.006
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.0060
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TUBING WALL THICKNESS TOLERANCES
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Nominal Wall
Thickness (Inches) |
Nominal Tube OD
Through 7/8” (+/- Inches) |
Nominal Tube OD
Over 7/8” Through 1-7/8” (+/- Inches) |
Nominal Tube OD
Over 1-7/8” (+/- Inches) |
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.035 (20 Ga)
|
.002/.002
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.002/.002
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.002/.002
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.042 (19 Ga)
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.002/.002
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.002/.003
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.002/.003
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.049 (18 Ga)
|
.002/.002
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.002/.003
|
.002/.003
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.058 (17 Ga)
|
.002/.002
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.002/.003
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.002/.003
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.065 (16 Ga)
|
.002/.002
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.002/.003
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.003/.003
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.072 (15 Ga)
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.002/.002
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.002/.003
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.003/.003
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.083 (14 Ga)
|
.002/.002
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.002/.003
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.003/.003
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.095 (13 Ga)
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.002/.002
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.002/.003
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.003/.003
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.100
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.002/.003
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.002/.004
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.003/.003
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.109 (12 Ga)
|
.002/.003
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.002/.004
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.003/.003
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.118
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.003/.003
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.002/.004
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.003/.003
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.120 (11 Ga)
|
.003/.003
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.002/.004
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.003/.003
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.134 (10 Ga)
|
—
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.002/.004
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.003/.003
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.148 (9 Ga)
|
—
|
.002/.004
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.003/.003
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.156 (5/32)
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—
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.003/.004
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.003/.004
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.165 (8 Ga)
|
—
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.003/.004
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.003/.004
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.180 (7 Ga)
|
—
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.004/.004
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.004/.005
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.197
|
—
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.004/.005
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.004/.005
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.203 (6 Ga)
|
—
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.004/.005
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.004/.005
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.219 (7/32)
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—
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.004/.006
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.004/.006
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.236
|
—
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.005/.006
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.005/.006
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.238 (4 GA)
|
—
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.005/.006
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.005/.006
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.259 (3 Ga)
|
—
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.005/.006
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.005/.006
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CHEMICAL REQUIREMENTS
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Element
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Cast or Heat Analysis: Weight %
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Carbon
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0.17 Min/0.23 Max
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Manganese
|
0.60 Min/0.90 Max
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Phosporus
|
0.04 Max
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Sulfur
|
0.05 Max
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MECHANICAL PROPERTIES
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Properties
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Values
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Yield Strength (Min)
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40,000 PSI
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Tensile Strength (Min)
|
60,000 PSI
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Elongation in 2” (Min)
|
25%
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Hardness (Rockwell B) (Max)
|
75 *
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* The hardness test shall not be required on tubing with a nominal wall thickness of less than .065” (16 Ga).