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ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings
ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings
Specifications
Brand Name :
Kasugai
Model Number :
ASTM A403 MSS SP-97 Weldolet
Place of Origin :
China
MOQ :
Negotiable
Price :
Negotiable
Payment Terms :
L / C , T / T
Supply Ability :
300 ton per month
Delivery Time :
30 - 60 working days
Packaging Details :
Seaworthy Packng
Product Name :
ASTM A403 MSS SP-97 Weldolet
Size Range :
1/8" to 36"
Wall Thickness :
STD Sch40 Sch160 XS XXS
Standards :
ASTM A403
Grade :
WP304/L WP316/L WP321 WP310S
Manufacturing Standard :
ASME B16.11 MSS SP-97
Type :
Stainless Steel Pipe Fittings
Material :
Stainless Steel,SS304 SS316L
Description

ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

Weldolet are the most common type of branch fitting and are part of the butt welding fixings family and are available in a wide variety of dimensions.

ASTM A403 and MSS SP-97 are two separate standards that are often referenced together when discussing Weldolets. Let's break it down:

ASTM A403:
ASTM A403 is a standard specification for wrought austenitic stainless steel pipe fittings. It covers various types of fittings, including butt-welded, socket-welded, and threaded fittings. This specification defines the requirements for materials, dimensions, mechanical properties, and testing of stainless steel pipe fittings.

A weldolet is a branch butt-weld connection fitting that is attached to an output pipe in order to reduce stress concentrations in the piping region. The most frequent type of branch fitting is the weldolet. They’re a type of butt welding fitting that comes in a number of sizes. They are used as an alternative to fittings such as elbows or tees, which can be more complex to install and may require additional support.

Product Information

Product Name ASTM A403 MSS SP-97 Weldolet
Size Range Dimension: 1/8” to 36”
Wall Thickness STD Sch40 Sch160 XS XXS
Standards ASTM A403
Grade WP304/L WP316/L WP310S WP321
Manufacturing Standards ASME B16.11 Weldolets, MSS SP-97

MSS SP-97 Weldolet Dimensions

“Center of Run to Face” Size

ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

Run Pipe NPS Run Pipe Schedule Weldolet Dimensions
Size SCH. 2″ 3″ 4″ 6″ 8″ 10″ 12″ 14″ 16″ 18″ 20″ 24″
2″ STD-40
XS-80		 70
XXS-160 87
3″ STD-40
XS-80		 84 91
XXS-160 101 119
4″ STD-40
XS-80		 97 103 111
XXS-160 114 132 144
STD-40 124 130 138 148
6″ XS-80 124 130 138 165
XXS-160 141 159 171 192
STD-40 149 156 164 176 183
8″ XS-80 149 156 164 191 197
XXS-160 167 184 197 218 224
STD-40 176 183 191 205 210 218
10″ XS-80 176 183 191 218 238 235
XXS-160 194 211 224 245 251 265
STD 202 208 216 228 255 245 251
12″ XS 202 208 216 243 264 267 265
XXS-160 219 237 249 270 276 291 324
14″ STD 218 224 232 245 251 259 267 270
XS 218 224 231 239 279 270 278 286
16″ STD 243 249 257 270 276 284 292 295 300
XS 243 249 257 284 305 293 303 306 319
18″ STD 268 275 283 295 302 310 318 321 325 335
XS 268 275 283 310 330 321 329 332 338 352
20″ STD 294 300 308 321 327 335 343 346 351 356 376
XS 294 300 308 335 356 346 354 557 364 370 386
24″ STD 345 351 359 372 378 386 394 397 402 406 411 446
XS 345 351 359 386 406 397 405 408 414 421 429 449

Size on Size Weldoet Dimensions and Weight

ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

Sch 40 (sizes in inches, weights in pounds)

Weldolet Size (inch) A B C

Weldolet weight

(lbs)
1/2 3/4 1 3/8 15/16 0.15
3/4 7/8 1 5/8 1 3/16 0.25
1 1 1/16 2 1 7/16 0.4
1 1/4 1 1/4 2 3/8 1 3/4 0.7
1 1/2 1 5/16 2 7/8 2 0.8
2 1 1/2 3 1/2 2 9/16 1.5
2 1/2 1 5/8 4 1/6 3 2.25
3 1 3/4 4 13/16 3 11/16 3.75
3 1/2 2 5 3/8 3 7/8 5
4 2 6 4 3/4 6.7
5 2 1/4 7 1/8 5 9/16 8.5
6 2 3/8 8 1/2 6 11/16 14
8 2 3/4 10 3/8 8 11/16 28
10 3 1/16 12 9/16 10 13/16 39
12 3 3/8 14 7/8 12 13/16 65
14 3 1/2 16 1/8 14 1/16 70
16 3 11/16 18 1/4 16 1/16 92
18 4 1/16 20 3/4 18 5/8 125
20 4 5/8 23 1/16 20 1/16 175
24 5 3/8 27 7/8 25 1/8 280
30 5 3/8 34 1/16 30 7/16 440
36 5 3/8 34 1/16 36 1/2 1180

Sch XS (sizes in inches, weights in pounds)

Weldolet Size (inch) A B C

Weldolet weight

(lbs)
1/2 3/4 1.375 15/16 0.15
3/4 7/8 1.625 1.1875 0.25
1 1.0625 2 1.4375 0.4
1 1/14 1.25 2.4375 1.75 0.7
1.5 1.3125 2.875 2 0.9
2 1.5 3.5 2.5625 1.6
2 1/2 1.625 4.0625 3 2.5
3 1.75 4.8125 3.6875 4.1
3 1/2 2 5.375 3.875 5.1
4 2 6 4.75 7.5
5 2.25 7.125 5.5625 9.5
6 3.0625 8.875 6.6875 15
8 3.875 10.625 8.6875 32
10 3.5 12.875 10.4375 46
12 3.9375 15.1875 13 61
14 4.125 16.6875 14.3125 75
16 4.4375 18.875 16.5 115
18 4.6875 21.125 18.625 130
20 5 23.375 20.8125 187
24 5.5 27.875 25.125 316
26 5.75 30.125 27.25 370

Sch 160/XXS (Sizes in inches, weights in pounds)

Weldolet Size (inch) A B C

Weldolet weight

(lbs)
1/2 1 1/8 1 3/8 9/16 0.25
3/4 1 1/4 1 3/4 3/4 0.70
1 1 1/2 2 1 0.80
1 1/4 1 3/4 2 7/16 1 5/16 1.25
1 1/2 2 2 3/4 1 1/2 1.75
2 2 3/16 3 3/16 1 11/16 2.15
2 1/2 2 7/16 3 13/16 2 1/8 3.40
3 2 7/8 4 3/4 2 7/8 6.35
4 3 5/16 6 3 7/8 10.50
5 3 11/16 7 3/8 4 13/16 14.25
6 4 1/8 8 11/16 5 3/4 30.25

Reducing Weldolet Dimensions

ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

Sch XS (Sizes in inches, weights in pounds)

Weldolet Size (inch) A B C

Weldolet weight

(lbs)
1/8 5/8 1 5/8 0.10
1/4 5/8 1 5/8 0.10
3/8 3/4 1 1/4 3/4 0.15
1/2 3/4 1 3/8 15/16 0.20
3/4 7/8 1 3/4 1 3/16 0.30
1 1 1/16 2 1/8 1 7/16 0.50
1 1/4 1 1/4 2 9/16 1 3/4 0.90
1 1/2 1 5/16 2 7/8 2 1.10
2 1 1/2 3 1/2 2 9/16 1.75
2 1/2 1 5/8 4 1/16 3 2.60
3 1 3/4 4 13/16 3 11/16 4.10
3 1/2 1 7/8 5 1/4 4 5.60
4 2 6 4 3/4 6.40
5 2 1/4 7 1/16 5 9/16 10.40
6 3 1/16 8 5/16 6 11/16 23.00
8 3 7/8 11 1/2 8 11/16 37.00
10 3 11/16 13 3/16 10 7/16 46.00
12 4 1/16 15 5/8 12 1/2 61.00
14 3 15/16 16 13 13/16 70.00
16 4 3/16 18 3/8 15 7/8 102.00
18 4 3/8 20 3/8 17 15/16 130.00
20 4 11/16 22 15/16 20 1/16 158.00
24 5 1/2 28 1/2 24 3/16 290.00
26 5 3/4 30 1/8 27 1/4 350.00

Sch160/XXS (Sizes in inches, weights in pounds)

Weldolet Size (inches) A B C Weldolet weight in lbs
1/2 1 1/8 1 3/8 9/16 0.25
3/4 1 1/4 1 3/4 3/4 0.70
1 1 1/2 2 1 0.85
1 1/4 1 3/4 2 7/16 1 5/16 1.25
1 1/2 2 2 3/4 1 1/2 1.75
2 2 3/16 3 3/16 1 11/16 2.15
2 1/2 2 7/16 3 13/16 2 1/8 3.40
3 2 7/8 4 3/4 2 7/8 6.30
4 3 5/16 6 3 7/8 10.50
5 3 11/16 7 3/8 4 13/16 14.25
6 4 1/8 9 5/16 5 3/4 28.00

Materials Chemical Compositions

ASTM A403 Stainless Steel Pipe Fittings refers to the material of forged and rolled austenitic stainless fittings for pressure pipes. Common grades are WP304/L, WP316/L. They can be used into many fields as engineering industry, energy conversion plants etc.

Grade A Composition (%)
Grade WP UNS Designation C Mn P S Si Ni Cr Mo Ti
WP304 S30400 0.08 2.00 0.045 0.030 1.00 8.0-11.0 18.0-22.0 ﹍ ﹍
WP304L S30403 0.030E 2.00 0.045 0.030 1.00 8.0-12.0 18.0-22.0 ﹍ ﹍
WP310S S31008 0.08 2.00 0.045 0.030 1.00 19.0-22.0 24.0-26.0 ﹍ ﹍
WP316 S31600 0.08 2.00 0.045 0.030 1.00 10.0-14.0 16.0-18.0 2.00-3.00
WP316L S31603 0.030E 2.00 0.045 0.030 1.00 10.0-14.0 16.0-18.0 2.00-3.00 ﹍
Wp321 S32100 0.08 2.00 0.045 0.030 1.00 9.0-12.0 17.0-19.0 ﹍ G

Note:

Where a ellipsis(﹍)appears in the table, there is no requirement and the element need to be analyzed for or reported

The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer

Columbium 0.10-0.30%; Vanadium 0.10-0.30%.

For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.04% is necessary in grades TP304L and TP316L. Small outside diameter tubes are defined as those less than 0.500in.(23.7mm) in outside diameter and light wall tubes as those less than 0.049in.(1.24mm) in average wall thickness

Product tags

alloy pipe fittings

,

steel fittings astm a234

,

ss pipe fittings manufacturer
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ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

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Product Detail
Brand Name :
Kasugai
Model Number :
ASTM A403 MSS SP-97 Weldolet
Place of Origin :
China
MOQ :
Negotiable
Price :
Negotiable
Payment Terms :
L / C , T / T
Contact Supplier
ASTM A403 Size on Size/Reducing Weldolet Stainless Steel Pipe Fittings

Kasugai Shanghai Co., Ltd.

Verified Supplier
3 Years
shanghai, shanghai
Since 1925
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Main Products :
Stainless Steel Pipe Flanges, Seamless Stainless Steel Pipe, Stainless Steel Pipe Fittings
Total Annual :
3000000-60000000
Employee Number :
140~150
Certification Level :
Verified Supplier
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