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Short Stubend

Pipe Fittings

Tees

Reducers

Stub Ends

Elbows

Returns & Bends

Caps

Pipe Nipples

PRODUCT SPECIFICATIONS

Product Type

  • Butt Weld Short Stub End
  • Short Stub End
  • Short Pattern Stub End
  • Butt Welding Stub End
  • Lap Joint Stub End
  • Butt Weld Pipe Fitting

Material Grades

  • ASTM A403 WP304 / WP304L
  • ASTM A403 WP316 / WP316L
  • ASTM A182 F304L / F316L
  • ASTM A815 S31803 / S32205
  • ASTM A234 WPB
  • ASTM A420 WPL6
  • ASTM A234 WP5 / WP9 / WP11 / WP22 / WP91
  • Nickel & Copper Nickel Alloys

Manufacturing Standards

  • ASME / ANSI B16.9
  • ASME B16.25
  • ASME B16.28
  • MSS SP-43
  • API 590-605
  • JIS B2312
  • JIS B2313

Size Range

  • Size: 1/2" to 36"
  • Seamless: Up to 24"
  • Welded: 8" to 36"
  • Nominal Pipe Size (NPS)
  • Custom Sizes Available

Thickness & Schedule

  • Schedule 5S
  • Schedule 10S
  • Schedule 20
  • Schedule 40 / STD
  • Schedule 60
  • Schedule 80 / XS
  • Schedule 100 / 120 / 140
  • Schedule 160 / XXS
  • Custom Thickness

Stub End Configuration

  • Short Pattern Stub End
  • Lap Joint Configuration
  • Butt Weld End
  • Flanged End Compatibility
  • Weld Preparation
  • Short Length Pattern

End Preparation

  • Butt Weld Ends
  • Beveled Welding Ends
  • ASME B16.25 End Preparation
  • Weldable Pipe Connection
  • Suitable for Lap Joint Flanges

Material Categories

  • Stainless Steel
  • Carbon Steel
  • Alloy Steel
  • Duplex & Super Duplex Steel
  • Low Temperature Steel
  • Copper Nickel
  • Nickel Alloys

Inspection & Testing

  • 100% Radiography Testing
  • Dimensional Inspection
  • Material Verification
  • Third Party Inspection
  • Inspection Documentation

Short Stub End Dimensions Chart

NPS Schedule Outside Diameter D (mm) Wall Thickness t (mm) Diameter of Lap G (mm) Length F (mm) Radius R Max. (mm)
½″10S21.32.1134.950.83.18
½″40S21.32.7734.950.83.18
¾″10S26.72.1142.950.83.18
¾″40S26.72.8742.950.83.18
1″10S33.42.7750.850.83.18
1″40S33.43.3850.850.83.18
1¼″10S42.22.7763.550.84.76
1¼″40S42.23.5663.550.84.76
1½″10S48.32.7773.050.86.35
1½″40S48.33.6873.050.86.35
2″10S60.32.7792.163.57.93
2″40S60.33.9192.163.57.93
2½″10S73.03.05104.863.57.93
2½″40S73.05.16104.863.57.93
3″10S88.93.05127.063.59.52
3″40S88.95.49127.063.59.52
3½″10S101.63.05139.776.29.52
3½″40S101.65.74139.776.29.52
4″10S114.33.05157.276.211.11
4″40S114.36.02157.276.211.11
5″10S141.33.40185.776.211.11
5″40S141.36.55185.776.211.11
6″10S168.33.40215.988.912.70
6″40S168.37.11215.988.912.70
8″10S219.13.76269.8101.612.70
8″40S219.18.18269.8101.612.70
10″10S273.04.19323.8127.012.70
10″40S273.09.27323.8127.012.70
12″10S323.84.57381.0152.412.70
12″40S323.810.31381.0152.412.70
14″10S355.66.35412.7152.412.70
14″40S355.611.13412.7152.412.70
16″10S406.46.35469.9152.412.70
16″40S406.412.70469.9152.412.70
18″10S457.06.35533.4152.412.70
18″40S457.014.27533.4152.412.70
20″10S508.06.35584.2152.412.70
20″40S508.015.09584.2152.412.70
22″10S559.06.35641.3152.412.70
22″40S559.015.09641.3152.412.70
24″10S610.06.35692.1152.412.70
24″40S610.017.48692.1152.412.70


MANUFACTURING

Forging Process

Each flange follows a rigorous 8-step forging and quality-control process to ensure conformance with ASTM A182 and ASME standards.

1

Material Selection

Prime 304 stainless steel billet sourced and certified.

2

Billet Preparation

Heat to 1100°C – 1250°C for optimal forgeability.

3

Forging

Shape billet into flange geometry under controlled pressure.

4

Heat Treatment

Solution anneal at 1040°C – 1120°C, then quench.

5

Machining & Finishing

CNC machining, drilling, and surface finishing.

6

Testing & Inspection

Tensile, hardness, PMI, visual and impact tests performed.