What is ASTM A 312?

ASTM A312 is an American Standard specification which covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. The most common grades are 304/304L Stainless Steel and 316/316L Stainless Steel .

How do you measure tube size?

Tubing is measured by the OUTSIDE DIAMETER (O.D.), specified in inches (e.g., 1.250) or fraction of an inch (eg. 1-1/4″). Pipe is usually measured by NOMINAL PIPE SIZE (NPS). Although it is related to the outside diameter, it is significantly different.

What is the inside diameter of tubing?

Tube ID (Inner Diameter) Smart Chart

OD (Inch)Tube ID (Inner Diameter) In Decimal Inches
21.3201.400
2 1/21.8201.900
32.2302.400
43.3203.400

How strong is 2x2x1 4 square tubing?

Minimum mechanical properties: Tensile strength = 58,000psi, Yield Strength = 46,000psi, %Elongation in 2” = 23%.

What does TP mean in TP304?

A312 TP304 TP = tubular product. A403 WP304 WP = wrought product.

What are tubular steel piles?

Tubular steel piles consist of segmental lengths of heavy walled steel sections of nominal lengths of 3m – 12m. These sections are driven into the ground for any length and transfer the superstructure loads to an underlying founding strata of suitable strength.

What are large diameter RR and Rd piles?

Large diameter RR and RD piles are based on spirally welded high quality steel pipes. The pile range covers sizes 400 to 1200 mm. Large diameter RR and RD piles can also be made in customer specific diameters and wall thicknesses.

What sizes do SSAB piles come in?

The pile range covers sizes 400 to 1200 mm. Large diameter RR and RD piles can also be made in customer specific diameters and wall thicknesses. For more detailed sectional properties and steel grades of the piles see SSAB’s RR and RD piles design and installation manual.

What type of piles does bbge offer?

BASIC TECHNIQUE BBGE offer driven steel tube piles and steel H-Piles. The open-ended steel tubes are typically former oil casings and either 177mm or 244mm in diameter and up to 13mm in section (sections up to 768mm diameter can be driven).

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