MS Buttweld 'C' Class

Reducing Tee

Mild Steel · ASME B16.9 · 27 sizes

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MS Buttweld 'C' Class

Buttweld Reducing Tee

7307MSRT40C001

Material: Mild Steel (IS 1239 Part 2 / IS 2062 Gr. A)
Type: Welded (ERW)
Form: Reducing (90° Branch)
Schedule: Class C (Heavy)
End Connection: Beveled End
Dimension Standard: ASME B16.9
Temperature: -10°C to 300°C
Pressure Rating: ~63 bar (IS 1239 Class C, Heavy)
HSN Code: 73079300
GST: 18%

Schematic: letters match the table columns

Illustration

6 columns · scroll sideways

SizeNPS	Run OD (D)mm	Branch OD (D1)mm	Wall (t)mm	Run C-T-E (C)mm	Outlet C-T-E (M)mm
1" × 1/2" NB	33.4	21.3	3.5	38	25
1-1/4" × 3/4" NB	42.2	26.7	3.5	48	29
1-1/4" × 1" NB	42.2	33.4	3.5	48	38
1-1/2" × 1" NB	48.3	33.4	4.0	57	38
1-1/2" × 1-1/4" NB	48.3	42.2	4.0	57	48
2" × 1" NB	60.3	33.4	3.5	64	38
2" × 1-1/4" NB	60.3	42.2	3.5	64	48
2" × 1-1/2" NB	60.3	48.3	3.5	64	57
2-1/2" × 1-1/2" NB	73.0	48.3	4.0	76	57
2-1/2" × 2" NB	73.0	60.3	4.0	76	64
3" × 1-1/2" NB	88.9	48.3	4.0	86	57
3" × 2" NB	88.9	60.3	4.0	86	64
3" × 2-1/2" NB	88.9	73.0	4.0	86	76
4" × 2" NB	114.3	60.3	4.5	105	64
4" × 2-1/2" NB	114.3	73.0	4.5	105	76
4" × 3" NB	114.3	88.9	4.5	105	86
5" × 3" NB	141.3	88.9	4.5	124	86
5" × 4" NB	141.3	114.3	4.5	124	105
6" × 3" NB	168.3	88.9	4.5	143	86
6" × 4" NB	168.3	114.3	4.5	143	105
6" × 5" NB	168.3	141.3	4.5	143	124
8" × 4" NB	219.1	114.3	5.5	178	105
8" × 6" NB	219.1	168.3	5.5	178	143
10" × 6" NB	273.0	168.3	5.5	216	143
10" × 8" NB	273.0	219.1	5.5	216	178
12" × 8" NB	323.8	219.1	5.5	254	178
12" × 10" NB	323.8	273.0	5.5	254	216

Pricing: prices for this product are not listed. Request a quotation.

Certification: All relevant test certificates or document will be provided.
Coating: Anticorrosion Paint Charges Included and Hot Dip Galvanizing Coating (GI), Epoxy Coating Charged Extra.
Taxes & Duties: GST and any other statutory levies shall be charged extra at applicable rates.

All dimensions in millimetres. Subject to change without notice. Spotted a mistake or wrong data? Please contact us.

About the reducing tee

A reducing tee has the same run bore at both ends but a smaller branch outlet. It eliminates the need for a weldolet or a separate reducer on the branch: the size reduction is built into the fitting. Available in any run × branch combination on request.

Equal run bore at both ends; reduced branch outlet
Single fitting replaces equal tee + concentric reducer on branch
Dimensions follow ASME B16.9 with reduced branch M dimension
Available in any run × branch size combination

Applicable Standards

Standards governing design, dimensions, and testing

ASME B16.9

Factory-Made Wrought Buttwelding Fittings

Covers the full range of industrial butt weld fittings (elbows, tees, reducers, caps, returns) in carbon steel, alloy steel, and stainless steel from ½" to 48" NB.

Applies to NPS ½" through 48" (DN 15 through DN 1200)
Schedule wall: STD / XS / XXS plus full SCH range
Radius: Long Radius (LR) 1.5D and Short Radius (SR) 1.0D elbows
Dimensional tables are the only source of 'legal' wall thickness
No pressure-temperature rating: use ASME B31.3 / B31.1 with pipe schedule
End prep: per ASME B16.25 bevel

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MS Buttweld 'C' Class

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