Taper-flange I sections for profile-matched fabrication and replacement work
We supply IPN steel beams for material schedules and replacement members that retain the tapered-flange I series. The inner flange slope affects seating, hole details and matching to existing steelwork. Our supply quotation keeps the complete IPN size, material grade, cut length and any end preparation together.
| Product | Hot-rolled tapered-flange I section |
|---|---|
| Designation | Complete IPN size retained on the material and piece schedule |
| Flange geometry | Tapered inner faces and profile-specific root radii |
| Material | Named steel grade and ordered testing requirements |
| End work | Plain cut ends or drawing-defined connection details |
| Finish | Bare, primed or specified surface treatment |
Compare the complete profile when replacing an existing member or preparing a connection.
| Section | Depth h (mm) | Flange b (mm) | Web tw (mm) | Flange tf (mm) | Nominal mass (kg/m) |
|---|---|---|---|---|---|
| IPN 100 | 100 | 50 | 4.5 | 6.8 | 8.3 |
| IPN 120 | 120 | 58 | 5.1 | 7.7 | 11.1 |
| IPN 140 | 140 | 66 | 5.7 | 8.6 | 14.3 |
| IPN 160 | 160 | 74 | 6.3 | 9.5 | 17.9 |
| IPN 180 | 180 | 82 | 6.9 | 10.4 | 21.9 |
| IPN 200 | 200 | 90 | 7.5 | 11.3 | 26.2 |
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Selected nominal dimensions and steel mass from the ArcelorMittal section reference. Use the complete designation for profile geometry. Our quotation identifies the material grade, supplied lengths and quantities; the project design establishes member resistance and connection requirements. IPN flange thickness uses the section standard’s reference position because the inner face is tapered.
The IPN series has a nominal 14% inner flange slope. Thickness is checked at the specified reference position; the outer edge has its own, thinner dimension.
The section reference describes IPN geometry separately from the steel grade. The order identifies both the profile and the material acceptance requirements.
A site member can have corrosion, coating buildup or nonstandard alterations. A measured depth is useful, but width, flange shape and available markings complete the identification.
Tapered washers or another designed seating arrangement may be needed where bolts bear on an inclined flange. Hardware selection belongs to the connection detail.
An end connection must accommodate the web-to-flange roots and the sloping faces. Plates, weld preparations and local cuts are defined from the actual IPN profile.
The dimensional schedule identifies beam length, installation gaps and bearing details. The released drawing locates any existing site holes or notches to be reproduced.
Matching an established IPN frame can preserve the intended interfaces. The replacement package keeps the section identity and any new connection work separate for review.
IPN lengths can be grouped with connection plates and other scheduled members. Assembly marks distinguish raw beam supply from a finished fabricated component.
Checks distinguish the tapered-flange IPN shape from parallel-flange I sections. Nominal thickness observations use the applicable reference position.
Prepared seating and attachment details are checked against the actual sloping flange and connection drawing. Their contact and clearance requirements remain visible in the finished-part inspection.
Surface and examination records retain a readable member reference through treatment or repair. Ordered acceptance criteria accompany the released piece.
IPN bundles retain their full section designation on the packing list. IPE and other I-series lengths have their own identified groups.
Dunnage preserves handling access and separates attached plates or vulnerable prepared edges. Loose connection items are packed and counted separately.
Our offer shows the specified IPN section, material and length quantities. Drawing-defined preparation, finish and delivery terms are listed with the requested supply scope.
The section standard gives a reference position across the tapered flange. The outer edge thickness is a different dimension, so inspection uses the stated reference location.
The order names the material grade, quality and any impact-toughness requirement alongside the IPN designation. Material records identify the properties of the supplied heat.
The connection schedule lists their type, size and quantity as accessory items. The quote separates those parts from the beam lengths and any prepared connection work.
Measured depth, flange width, web and flange thickness, available markings and an end-profile photograph establish the reference. The drawing records the connection details needed for the replacement.
The review compares flange width, slope, root radii and thickness with the existing pattern. The approved connection detail establishes the hole and seating arrangement for the selected replacement.
Yes. Loose plates and fasteners have individual marks and counts. The supply schedule distinguishes those parts from any completed welded assembly included in the order.
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Send the IPN designation, material grade, lengths and quantities. For replacement or prepared members, attach the measured section and connection drawing with the delivery destination.