45° Butt-Weld Elbow, 1.5D and 3D Radius

Butt-welding 45° elbow to gently redirect flow. Available in 1.5D radius to ASME B16.9 (A234 WPB, STD or XS, painted) and in 3D radius to EN 10253-1 (S235, seamless or welded, black or galvanized).

ASME B16.9EN 10253-1

Angle: 45°
Bend radius: 1.5D / 3D
Size range: Ø 21.3 to 323.8 mm
Wall thickness: 2 to 7.1 mm, STD, XS
Steel grade: A234WPB, S235
Standard: ASME B16.9, EN 10253-1
Manufacturing: Seamless, Welded
Finish: Black, Galvanized, Painted
Catalog references: 84

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To get around an obstacle without breaking the flow

A 45° elbow offsets a line, takes it around a beam or another network, or creates an angled branch. Two 45° elbows in a row often replace a 90° elbow when the change of direction should be gentler.

The 1.5D version is made in A234 WPB to ASME B16.9, STD or XS wall, painted. The 3D version is made in S235 to EN 10253-1, seamless or welded, black or galvanized. Choose the same standard as the rest of your line.

For a full change of direction, see the 90° 1.5D elbow and the 90° 3D elbow.

Technical data

Sizes, grades, wall thicknesses and finishes come straight from our catalog of orderable references.

Steel grades

A234WPBS235

Wall thicknesses

2 to 7.1 mmSTDXS

Coating and finish

BlackGalvanizedPainted

Certificates

EN 10204 3.1 inspection certificate with every shipment. NDT, hardness and hydrostatic test reports on request.

84 references available

Every orderable reference of this product type, with its full designation. Open a reference for its technical page and compatible fittings.

Reference	Designation	Dimensions (mm)	Standard · grade	Type · finish
C4S21STDP	Butt-weld elbow 45° 1.5D, Ø21.3 mm STD, A234WPB, seamless, ASME B16.9, painted	21.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S21XSP	Butt-weld elbow 45° 1.5D, Ø21.3 mm XS, A234WPB, seamless, ASME B16.9, painted	21.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S26STDP	Butt-weld elbow 45° 1.5D, Ø26.7 mm STD, A234WPB, seamless, ASME B16.9, painted	26.7 STD	ASME B16.9A234WPB	SeamlessPainted
C4S26XSP	Butt-weld elbow 45° 1.5D, Ø26.7 mm XS, A234WPB, seamless, ASME B16.9, painted	26.7 XS	ASME B16.9A234WPB	SeamlessPainted
C4S33STDP	Butt-weld elbow 45° 1.5D, Ø33.4 mm STD, A234WPB, seamless, ASME B16.9, painted	33.4 STD	ASME B16.9A234WPB	SeamlessPainted
C4S33XSP	Butt-weld elbow 45° 1.5D, Ø33.4 mm XS, A234WPB, seamless, ASME B16.9, painted	33.4 XS	ASME B16.9A234WPB	SeamlessPainted
C4S42STDP	Butt-weld elbow 45° 1.5D, Ø42.2 mm STD, A234WPB, seamless, ASME B16.9, painted	42.2 STD	ASME B16.9A234WPB	SeamlessPainted
C4S42XSP	Butt-weld elbow 45° 1.5D, Ø42.2 mm XS, A234WPB, seamless, ASME B16.9, painted	42.2 XS	ASME B16.9A234WPB	SeamlessPainted
C4S48STDP	Butt-weld elbow 45° 1.5D, Ø48.3 mm STD, A234WPB, seamless, ASME B16.9, painted	48.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S48XSP	Butt-weld elbow 45° 1.5D, Ø48.3 mm XS, A234WPB, seamless, ASME B16.9, painted	48.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S60STDP	Butt-weld elbow 45° 1.5D, Ø60.3 mm STD, A234WPB, seamless, ASME B16.9, painted	60.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S60XSP	Butt-weld elbow 45° 1.5D, Ø60.3 mm XS, A234WPB, seamless, ASME B16.9, painted	60.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S73STDP	Butt-weld elbow 45° 1.5D, Ø73 mm STD, A234WPB, seamless, ASME B16.9, painted	73 STD	ASME B16.9A234WPB	SeamlessPainted
C4S73XSP	Butt-weld elbow 45° 1.5D, Ø73 mm XS, A234WPB, seamless, ASME B16.9, painted	73 XS	ASME B16.9A234WPB	SeamlessPainted
C4S88STDP	Butt-weld elbow 45° 1.5D, Ø88.9 mm STD, A234WPB, seamless, ASME B16.9, painted	88.9 STD	ASME B16.9A234WPB	SeamlessPainted
C4S88XSP	Butt-weld elbow 45° 1.5D, Ø88.9 mm XS, A234WPB, seamless, ASME B16.9, painted	88.9 XS	ASME B16.9A234WPB	SeamlessPainted
C4S114STDP	Butt-weld elbow 45° 1.5D, Ø114.3 mm STD, A234WPB, seamless, ASME B16.9, painted	114.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S114XSP	Butt-weld elbow 45° 1.5D, Ø114.3 mm XS, A234WPB, seamless, ASME B16.9, painted	114.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S141STDP	Butt-weld elbow 45° 1.5D, Ø141.3 mm STD, A234WPB, seamless, ASME B16.9, painted	141.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S141XSP	Butt-weld elbow 45° 1.5D, Ø141.3 mm XS, A234WPB, seamless, ASME B16.9, painted	141.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S168STDP	Butt-weld elbow 45° 1.5D, Ø168.3 mm STD, A234WPB, seamless, ASME B16.9, painted	168.3 STD	ASME B16.9A234WPB	SeamlessPainted
C4S168XSP	Butt-weld elbow 45° 1.5D, Ø168.3 mm XS, A234WPB, seamless, ASME B16.9, painted	168.3 XS	ASME B16.9A234WPB	SeamlessPainted
C4S219STDP	Butt-weld elbow 45° 1.5D, Ø219.1 mm STD, A234WPB, seamless, ASME B16.9, painted	219.1 STD	ASME B16.9A234WPB	SeamlessPainted
C4S219XSP	Butt-weld elbow 45° 1.5D, Ø219.1 mm XS, A234WPB, seamless, ASME B16.9, painted	219.1 XS	ASME B16.9A234WPB	SeamlessPainted
C4S273STDP	Butt-weld elbow 45° 1.5D, Ø273 mm STD, A234WPB, seamless, ASME B16.9, painted	273 STD	ASME B16.9A234WPB	SeamlessPainted
C4S273XSP	Butt-weld elbow 45° 1.5D, Ø273 mm XS, A234WPB, seamless, ASME B16.9, painted	273 XS	ASME B16.9A234WPB	SeamlessPainted
C4S323STDP	Butt-weld elbow 45° 1.5D, Ø323.8 mm STD, A234WPB, seamless, ASME B16.9, painted	323.8 STD	ASME B16.9A234WPB	SeamlessPainted
C4S323XSP	Butt-weld elbow 45° 1.5D, Ø323.8 mm XS, A234WPB, seamless, ASME B16.9, painted	323.8 XS	ASME B16.9A234WPB	SeamlessPainted
C4S21G	Butt-weld elbow 45° 3D, Ø21.3 × 2 mm, S235, seamless, EN 10253-1, galvanized	21.3×2	EN 10253-1S235	SeamlessGalvanized
C4S26G	Butt-weld elbow 45° 3D, Ø26.9 × 2.3 mm, S235, seamless, EN 10253-1, galvanized	26.9×2.3	EN 10253-1S235	SeamlessGalvanized
C4S33G	Butt-weld elbow 45° 3D, Ø33.7 × 2.6 mm, S235, seamless, EN 10253-1, galvanized	33.7×2.6	EN 10253-1S235	SeamlessGalvanized
C4S42G	Butt-weld elbow 45° 3D, Ø42.4 × 2.6 mm, S235, seamless, EN 10253-1, galvanized	42.4×2.6	EN 10253-1S235	SeamlessGalvanized
C4S48G	Butt-weld elbow 45° 3D, Ø48.3 × 2.6 mm, S235, seamless, EN 10253-1, galvanized	48.3×2.6	EN 10253-1S235	SeamlessGalvanized
C4S60G	Butt-weld elbow 45° 3D, Ø60.3 × 2.9 mm, S235, seamless, EN 10253-1, galvanized	60.3×2.9	EN 10253-1S235	SeamlessGalvanized
C4S76G	Butt-weld elbow 45° 3D, Ø76.1 × 2.9 mm, S235, seamless, EN 10253-1, galvanized	76.1×2.9	EN 10253-1S235	SeamlessGalvanized
C4S88G	Butt-weld elbow 45° 3D, Ø88.9 × 3.2 mm, S235, seamless, EN 10253-1, galvanized	88.9×3.2	EN 10253-1S235	SeamlessGalvanized
C4S114G	Butt-weld elbow 45° 3D, Ø114.3 × 3.6 mm, S235, seamless, EN 10253-1, galvanized	114.3×3.6	EN 10253-1S235	SeamlessGalvanized
C4S139G	Butt-weld elbow 45° 3D, Ø139.7 × 4 mm, S235, seamless, EN 10253-1, galvanized	139.7×4	EN 10253-1S235	SeamlessGalvanized
C4S168G	Butt-weld elbow 45° 3D, Ø168.3 × 4.5 mm, S235, seamless, EN 10253-1, galvanized	168.3×4.5	EN 10253-1S235	SeamlessGalvanized
C4S219G	Butt-weld elbow 45° 3D, Ø219.1 × 6.3 mm, S235, seamless, EN 10253-1, galvanized	219.1×6.3	EN 10253-1S235	SeamlessGalvanized
C4S273G	Butt-weld elbow 45° 3D, Ø273 × 6.3 mm, S235, seamless, EN 10253-1, galvanized	273×6.3	EN 10253-1S235	SeamlessGalvanized
C4S323G	Butt-weld elbow 45° 3D, Ø323.8 × 7.1 mm, S235, seamless, EN 10253-1, galvanized	323.8×7.1	EN 10253-1S235	SeamlessGalvanized
C4S21N	Butt-weld elbow 45° 3D, Ø21.3 × 2 mm, S235, seamless, EN 10253-1, black	21.3×2	EN 10253-1S235	SeamlessBlack
C4S26N	Butt-weld elbow 45° 3D, Ø26.9 × 2.3 mm, S235, seamless, EN 10253-1, black	26.9×2.3	EN 10253-1S235	SeamlessBlack
C4S33N	Butt-weld elbow 45° 3D, Ø33.7 × 2.6 mm, S235, seamless, EN 10253-1, black	33.7×2.6	EN 10253-1S235	SeamlessBlack
C4S42N	Butt-weld elbow 45° 3D, Ø42.4 × 2.6 mm, S235, seamless, EN 10253-1, black	42.4×2.6	EN 10253-1S235	SeamlessBlack
C4S48N	Butt-weld elbow 45° 3D, Ø48.3 × 2.6 mm, S235, seamless, EN 10253-1, black	48.3×2.6	EN 10253-1S235	SeamlessBlack
C4S60N	Butt-weld elbow 45° 3D, Ø60.3 × 2.9 mm, S235, seamless, EN 10253-1, black	60.3×2.9	EN 10253-1S235	SeamlessBlack
C4S76N	Butt-weld elbow 45° 3D, Ø76.1 × 2.9 mm, S235, seamless, EN 10253-1, black	76.1×2.9	EN 10253-1S235	SeamlessBlack
C4S88N	Butt-weld elbow 45° 3D, Ø88.9 × 3.2 mm, S235, seamless, EN 10253-1, black	88.9×3.2	EN 10253-1S235	SeamlessBlack
C4S114N	Butt-weld elbow 45° 3D, Ø114.3 × 3.6 mm, S235, seamless, EN 10253-1, black	114.3×3.6	EN 10253-1S235	SeamlessBlack
C4S139N	Butt-weld elbow 45° 3D, Ø139.7 × 4 mm, S235, seamless, EN 10253-1, black	139.7×4	EN 10253-1S235	SeamlessBlack
C4S168N	Butt-weld elbow 45° 3D, Ø168.3 × 4.5 mm, S235, seamless, EN 10253-1, black	168.3×4.5	EN 10253-1S235	SeamlessBlack
C4S219N	Butt-weld elbow 45° 3D, Ø219.1 × 6.3 mm, S235, seamless, EN 10253-1, black	219.1×6.3	EN 10253-1S235	SeamlessBlack
C4S273N	Butt-weld elbow 45° 3D, Ø273 × 6.3 mm, S235, seamless, EN 10253-1, black	273×6.3	EN 10253-1S235	SeamlessBlack
C4S323N	Butt-weld elbow 45° 3D, Ø323.8 × 7.1 mm, S235, seamless, EN 10253-1, black	323.8×7.1	EN 10253-1S235	SeamlessBlack
C4W21G	Butt-weld elbow 45° 3D, Ø21.3 × 2 mm, S235, welded, EN 10253-1, galvanized	21.3×2	EN 10253-1S235	WeldedGalvanized
C4W26G	Butt-weld elbow 45° 3D, Ø26.9 × 2.3 mm, S235, welded, EN 10253-1, galvanized	26.9×2.3	EN 10253-1S235	WeldedGalvanized
C4W33G	Butt-weld elbow 45° 3D, Ø33.7 × 2.6 mm, S235, welded, EN 10253-1, galvanized	33.7×2.6	EN 10253-1S235	WeldedGalvanized
C4W42G	Butt-weld elbow 45° 3D, Ø42.4 × 2.6 mm, S235, welded, EN 10253-1, galvanized	42.4×2.6	EN 10253-1S235	WeldedGalvanized
C4W48G	Butt-weld elbow 45° 3D, Ø48.3 × 2.6 mm, S235, welded, EN 10253-1, galvanized	48.3×2.6	EN 10253-1S235	WeldedGalvanized
C4W60G	Butt-weld elbow 45° 3D, Ø60.3 × 2.9 mm, S235, welded, EN 10253-1, galvanized	60.3×2.9	EN 10253-1S235	WeldedGalvanized
C4W76G	Butt-weld elbow 45° 3D, Ø76.1 × 2.9 mm, S235, welded, EN 10253-1, galvanized	76.1×2.9	EN 10253-1S235	WeldedGalvanized
C4W88G	Butt-weld elbow 45° 3D, Ø88.9 × 3.2 mm, S235, welded, EN 10253-1, galvanized	88.9×3.2	EN 10253-1S235	WeldedGalvanized
C4W114G	Butt-weld elbow 45° 3D, Ø114.3 × 3.6 mm, S235, welded, EN 10253-1, galvanized	114.3×3.6	EN 10253-1S235	WeldedGalvanized
C4W139G	Butt-weld elbow 45° 3D, Ø139.7 × 4 mm, S235, welded, EN 10253-1, galvanized	139.7×4	EN 10253-1S235	WeldedGalvanized
C4W168G	Butt-weld elbow 45° 3D, Ø168.3 × 4.5 mm, S235, welded, EN 10253-1, galvanized	168.3×4.5	EN 10253-1S235	WeldedGalvanized
C4W219G	Butt-weld elbow 45° 3D, Ø219.1 × 6.3 mm, S235, welded, EN 10253-1, galvanized	219.1×6.3	EN 10253-1S235	WeldedGalvanized
C4W273G	Butt-weld elbow 45° 3D, Ø273 × 6.3 mm, S235, welded, EN 10253-1, galvanized	273×6.3	EN 10253-1S235	WeldedGalvanized
C4W323G	Butt-weld elbow 45° 3D, Ø323.8 × 7.1 mm, S235, welded, EN 10253-1, galvanized	323.8×7.1	EN 10253-1S235	WeldedGalvanized
C4W21N	Butt-weld elbow 45° 3D, Ø21.3 × 2 mm, S235, welded, EN 10253-1, black	21.3×2	EN 10253-1S235	WeldedBlack
C4W26N	Butt-weld elbow 45° 3D, Ø26.9 × 2.3 mm, S235, welded, EN 10253-1, black	26.9×2.3	EN 10253-1S235	WeldedBlack
C4W33N	Butt-weld elbow 45° 3D, Ø33.7 × 2.6 mm, S235, welded, EN 10253-1, black	33.7×2.6	EN 10253-1S235	WeldedBlack
C4W42N	Butt-weld elbow 45° 3D, Ø42.4 × 2.6 mm, S235, welded, EN 10253-1, black	42.4×2.6	EN 10253-1S235	WeldedBlack
C4W48N	Butt-weld elbow 45° 3D, Ø48.3 × 2.6 mm, S235, welded, EN 10253-1, black	48.3×2.6	EN 10253-1S235	WeldedBlack
C4W60N	Butt-weld elbow 45° 3D, Ø60.3 × 2.9 mm, S235, welded, EN 10253-1, black	60.3×2.9	EN 10253-1S235	WeldedBlack
C4W76N	Butt-weld elbow 45° 3D, Ø76.1 × 2.9 mm, S235, welded, EN 10253-1, black	76.1×2.9	EN 10253-1S235	WeldedBlack
C4W88N	Butt-weld elbow 45° 3D, Ø88.9 × 3.2 mm, S235, welded, EN 10253-1, black	88.9×3.2	EN 10253-1S235	WeldedBlack
C4W114N	Butt-weld elbow 45° 3D, Ø114.3 × 3.6 mm, S235, welded, EN 10253-1, black	114.3×3.6	EN 10253-1S235	WeldedBlack
C4W139N	Butt-weld elbow 45° 3D, Ø139.7 × 4 mm, S235, welded, EN 10253-1, black	139.7×4	EN 10253-1S235	WeldedBlack
C4W168N	Butt-weld elbow 45° 3D, Ø168.3 × 4.5 mm, S235, welded, EN 10253-1, black	168.3×4.5	EN 10253-1S235	WeldedBlack
C4W219N	Butt-weld elbow 45° 3D, Ø219.1 × 6.3 mm, S235, welded, EN 10253-1, black	219.1×6.3	EN 10253-1S235	WeldedBlack
C4W273N	Butt-weld elbow 45° 3D, Ø273 × 6.3 mm, S235, welded, EN 10253-1, black	273×6.3	EN 10253-1S235	WeldedBlack
C4W323N	Butt-weld elbow 45° 3D, Ø323.8 × 7.1 mm, S235, welded, EN 10253-1, black	323.8×7.1	EN 10253-1S235	WeldedBlack

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Industries

Petroleum & Oil

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Nuclear Energy

Waste Disposal

Manufacturing standards

Made to the following dimensional and material standards. Inspection certificate to EN 10204.

Standard

ASME B16.9

Factory-made wrought butt-welding fittings. North-American reference for dimensions and tolerances.

Standard

EN 10253-1

European standard for butt-welding pipe fittings, Part 1, carbon steel without specific inspection requirements.

Frequently asked questions

Can I just cut a 90° elbow in half?

It can be done on site, but a factory-made 45° elbow has square, bevelled ends within the standard’s tolerances, which makes welding and inspection easier.

ASME B16.9 or EN 10253-1?

Use the standard of your piping. Lines sized in inches and schedules (oil, gas, industry) usually follow ASME B16.9; European water, heating and fire protection lines usually follow EN 10253-1.

Do you make other angles?

Yes, to drawing: 22.5°, 30°, 60° or a special radius. Send us your specification.

Other butt-weld fittings

Elbows

45° Butt-Weld Elbow