Factory-Made Wrought Carbon, Stainless, Alloy Steel & Duplex Buttweld Fittings Certified to ASME B16.9 & MSS SP-43 with EN 10204 3.1 Traceability.
Engineering Specification
Global Manufacturing & Supply of ASME B16.9 Buttweld Pipe Fittings
Rajtilak Metal is one of India’s premier ISO 9001:2015 certified manufacturers and exporters of seamless and welded butt weld fittings, operating modern forging and press lines in Mumbai since 1991. We supply EPC contractors, chemical plants, offshore platforms and power generation facilities across North America, Europe and the Middle East.
Governed by ASME B16.9 (wrought factory-made butt-welding fittings) and MSS SP-43 (for lightweight stainless steel schedules), our fitting range encompasses seamless construction from 1/2″ to 24″ and fabricated welded construction up to 48″. Designed for high-integrity piping systems, butt weld joints offer continuous metal flow, maximum burst resistance and minimal flow turbulence compared to socket weld or threaded alternatives.
Product Gallery
Complete Portfolio of ASME B16.9 Seamless & Welded Fittings
45° LR Elbow
90° LR / SR Elbow
180° Return Bend
Equal Straight Tee
Reducing Branch Tee
Concentric Reducer
Eccentric Reducer
Dished End Cap
Manufacturing Parameters
ASME B16.9 & MSS SP-43 Specification Standards
Standards Scope
ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75, EN 10253-4, DIN 2605, JIS B2312
EN 10204 3.1 Inspection Certificate, NACE MR0175 / ISO 15156, PED 2014/68/EU
Dimensional Verification
ASME B16.9 Reducing Tees: Center-to-End Dimensions (NPS 1/2 to 24)
Nominal Pipe Size (NPS)
Outside Diameter at Bevel (mm)
Center-to-End Distance (mm)
Run
Outlet
Run (OD)
Outlet (OD)
Run (C)
Outlet (M)
1/2″
1/4″ - 3/8″
21.3
13.7 - 17.3
25
25
3/4″
3/8″ - 1/2″
26.7
17.3 - 21.3
29
29
1″
1/2″ - 3/4″
33.4
21.3 - 26.7
38
38
1-1/2″
1/2″ - 1-1/4″
48.3
21.3 - 42.2
57
57
2″
3/4″ - 1-1/2″
60.3
26.7 - 48.3
64
44 - 60
3″
1-1/4″ - 2-1/2″
88.9
42.2 - 73.0
86
70 - 83
4″
1-1/2″ - 3-1/2″
114.3
48.3 - 101.6
105
86 - 102
6″
2-1/2″ - 5″
168.3
73.0 - 141.3
143
121 - 137
8″
3-1/2″ - 6″
219.1
101.6 - 168.3
178
152 - 168
10″
4″ - 8″
273.0
114.3 - 219.1
216
184 - 203
12″
5″ - 10″
323.8
141.3 - 273.0
254
216 - 241
16″
6″ - 14″
406.4
168.3 - 355.6
305
264 - 305
20″
8″ - 18″
508.0
219.1 - 457.0
381
324 - 368
24″
10″ - 22″
610.0
273.0 - 559.0
432
384 - 432
Manufacturing Tolerances
ASME B16.9 Dimensional Tolerances (Inches)
NPS Range
Outside Diameter at Bevel
Inside Diameter at End
Wall Thickness (t)
Center-to-End Distance
Overall Length (Caps)
1/2″ to 2-1/2″
+0.06 / -0.03
±0.03
Not less than 87.5% of nominal thickness
±0.06
±0.12
3″ to 3-1/2″
±0.06
±0.06
±0.06
±0.12
4″
±0.06
±0.06
±0.06
±0.12
5″ to 8″
+0.09 / -0.06
±0.06
±0.06
±0.25
10″ to 18″
+0.16 / -0.12
±0.12
±0.09
±0.25
20″ to 24″
+0.25 / -0.19
±0.19
±0.09
±0.25
Material Equivalents
Material Grades Comparison: ASTM vs. EN/DIN Standards
Category
ASTM Material Grade
Werkstoff Nr.
European Standard Grade
Carbon Steel
ASTM A234 Grade WPA
1.0305
P235GH (EN 10253-2)
Carbon Steel
ASTM A234 Grade WPB
1.0405 / 1.0425
P265GH / St 45.8
Low-Temp Steel
ASTM A420 Grade WPL6
1.0451
P215NL / TTSt 35 N
Alloy Steel (1.25Cr-0.5Mo)
ASTM A234 Grade WP11 Cl.2
1.7335
13CrMo4-5
Alloy Steel (2.25Cr-1Mo)
ASTM A234 Grade WP22 Cl.3
1.7380
10CrMo9-10
Stainless Steel
ASTM A403 Grade WP304L
1.4307
X2CrNi18-9 (EN 10253-4)
Stainless Steel
ASTM A403 Grade WP316L
1.4404
X2CrNiMo17-12-2
Duplex Steel
ASTM A815 UNS S31803
1.4462
X2CrNiMoN 22-5-3
Procuring ASME B16.9 Buttweld Fittings for Critical Projects?
Reach out to our engineering technical sales desk directly. We provide complete mill test certification, dimensional layout compliance reports and export packing solutions.
