PIPES

HOLLOW STEEL PIPES

Hollow steel pipes are available in rectangular, square and circular shape. These hollow steel pipes are used in various industries vigorously. Our Sizes range from OD32-60.3, RT max 50x100mm, SQ75-75mm and thickness 1.2-4.0mm

Specification & Technical Info

Supply References:

A) Grade designation

• Grade A

• Grade B

B) Length

• Standard mill length 6 meter

• Cut-to-length upon customer request

C) Pipe Surface Finishing

• Black

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

TOLERANCES

Outside Dimensions

Any side < 2? (63.5mm)

± 0.020 in (0.51mm)

2 ½ (63.5mm) < any side ≤ 3 ½ (88.9mm)

± 0.025 in (0.64mm)

3 ½ (88.9mm) < any side ≤ 5 ½ (139.7mm)

± 0.030 in (0.76mm)

5? (139.7mm) < any side

± 1%

Length

≤ 22ft (6.7M)

+ ½ in (12.7mm) / -1/4 in (6.4mm)

22ft (6.7M) < length ≤ 44ft (13.4M)

+ ¾ in (19.0mm) / -1/4 In (6.4mm)

Wall Thickness

±10%

Straightness

1/8 in x total length (ft) / 5 or 10.4mm x total length (m) / 5
Squareness

Squareness

Adjustment sides may deviate from 90° with tolerance of ± 2° max

Supply References:

A) Grade designation

• Grade A

• Grade B

B) Length

• Standard mill length 6 meter

• Cut-to-length upon customer request

C) Pipe Surface Finishing

• Black

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

TOLERANCES

Outside Dimensions

Any side < 2? (63.5mm)

± 0.020 in (0.51mm)

2 ½ (63.5mm) < any side ≤ 3 ½ (88.9mm)

± 0.025 in (0.64mm)

3 ½ (88.9mm) < any side ≤ 5 ½ (139.7mm)

± 0.030 in (0.76mm)

5? (139.7mm) < any side

± 1%

Length

≤ 22ft (6.7M)

+ ½ in (12.7mm) / -1/4 in (6.4mm)

22ft (6.7M) < length ≤ 44ft (13.4M)

+ ¾ in (19.0mm) / -1/4 In (6.4mm)

Wall Thickness

±10%

Straightness

1/8 in x total length (ft) / 5 or 10.4mm x total length (m) / 5
Squareness

Squareness

Adjustment sides may deviate from 90° with tolerance of ± 2° max

Supply References:

A) Grade designation

● STK 290

● STK 400

● STK 490

● STK 500

● STK 540

B) Length

● Standard mill length 6 meter

● Cut-to-length upon customer request

C) Pipe Surface Finishing

● Black

● GI pre-zinc

D)     Pipe End Finishing

● Plain End

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

TOLERANCES

Wall thickness

± 0.3mm (Wall Thickness < 3mm)

± 10% (3mm ≤ Wall Thickness < 12mm)

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