A999 — Ovality / OD / Wall Tolerance

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Size Schedule

Measured OD Min (mm)

Measured OD Max (mm)

Measured Wall Min (mm)

Measured Wall Max (mm)

Nominal OD (mm)

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Nominal Wall (mm)

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Nominal ID (mm)

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Weight (kg/m)

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Check	Spec	Measured	Status
OD Min (mm)	—	—	—
OD Max (mm)	—	—	—
Ovality (%)	≤ 1.5	—	—
Wall Min (mm)	—	—	—
Wall Max (mm)	—	—	—
Mean Diameter (thin-wall calc)	—	—	—

“Thin Wall ?” flag matches Sheet2: (Nominal Wall / Nominal OD) × 100 < 3 → YES.

ASTM A358 (Spec reference)

Based on Sheet2 logic: OD tolerance ±0.5% of nominal OD. Wall “Min” = nominal wall − 0.30 mm.

A358 OD MIN (mm)

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A358 OD MAX (mm)

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A358 Wall Min (mm)

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