ASTM A252 Steel Pipe Pile Specifications

Scope

Steel pipe piling for permanent, structural load-carrying member or as a shell to form cast-in-place concrete piles.

Specification

ASTM A252, Grades 2 and 3/modified to 50 ksi min. yield

Manufacturing Process

Straight-seam electric resistance weld (ERW)

Size (OD)

8.625, 10.750 and 12.750

Gauge/Wall Thickness

0.250, 0.313, 0.375 and 0.500 (nominal)

Strength/Elongation Properties

Yield: 50 ksi min., 60 ksi min., 75 ksi min., 80 ksi min. Aim to.

Tensile: 66 ksi min. Elongation: 20% min.

Straightness Tolerance

1/8”x length (in feet), divided by five

Weight Tolerance

Weight must not vary more than 15% over or 5% under.

Piling weight controlled by utilizing minimum-gauge coil stock.

Searing does not weigh each individual length of pipe.

Chemical Composition

Carbon: 0.23 max. Manganese: 1.35 max. Meets ASTM A252

Carbon Equivalent (CE)

0.45 max (per AWS D1.1)

Weldability

AWD D1.1 base metal

Can be welded with AWS prequalified welding procedures

Testing

ASTM A370: In-house flattening and cone test per heat

Material Test Reports

Material test reports are furnished for each length of pipe.

Steel mill coil certifications/gauge certifications available upon request.

Marking/ID Stamp

Ink stenciling on one side of the OD, ID stamping when requested

STRENGTH LEVELS

GRADE 2

GRADE 3

Yield Strength

35,000 psi min.

45,000 psi min.

Tensile Strength

60,000 psi min.

66,000 psi min.

Elongation % in 2”Min.

25

20

Meets AWS D1.1 Base Metal Welding requirements

Yes

Yes

CHEMISTRY LEVELS

ALL GRADES

Carbon

N/A

Manganese

N/A

Phosphorus

0.050 max.

Sulphur

N/A

Silicon

N/A

Grain Refining Elements

N/A

TOLERANCES

ALL GRADES

OD Size

>1.9 - 2.5 incl.

+/- 1%

>2.5 - 3.5 incl.

+/- 1%

>3.5 - 5.5 incl.

+/- 1%

>5.5

+/- 1%

Wall Thickness

–12.5%

Weight

+15% /–5%

Straightness (max. allowed)

Not specified