ANSI / ASME B16.11
Threaded Full Coupling

Table of Content

Kaizen Steel Industries is a dynamic company that was established over a decade ago to meet the growing demand for ASME B16.11 Threaded Full Coupling standards in fittings like elbows, tees, crosses, reducers, nipples, and couplings made from materials such as stainless steel, carbon steel, and high nickel alloys. 

We manufacture, export, and supply Threaded (THD) Fittings that meet both national and international quality standards. 

Kaizen Steel Industries produce all three types of fittings: Buttweld (BW) fittings, Socket Weld (SW) fittings, and Threaded (THD) fittings according to ASME B16.11 and other international standards. We export our high-quality ASME B16.11 Threaded Full Couplings to countries like USA, UK, and South Africa.

Threaded Reducing Couplings are designed to handle repeated cycles of tightening without the threads loosening during drilling. These Threaded Couplings can either be welded or screwed onto the pipe, depending on the needs, and are made according to both national and international quality standards.

Kaizen Steel Industries also supply Full Couplings under ANSI B16.11, which are used in various industries, including chemical processing, oil refineries, petrochemicals, and more. We maintain a large inventory of Forged Steel Threaded Couplings in custom sizes to meet customer requirements. 

We specialize in manufacturing Threaded Full Couplings in line with ASME B16.11 / BS 3799 standards. These standards cover pressure-temperature ratings, dimensions, marking, tolerances, and material requirements. Be sure to check the Threaded Reducing Coupling dimensions before purchasing to ensure they meet the required sizes.

Threaded Full Coupling Specification

DimensionsASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799
Size1/8″ NB TO 4″ NB
Class3000 LBS, 6000 LBS, 9000 LBS
TypeThreaded (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT   
FormThreaded Full Coupling, Threaded Reducing Coupling
Value Added Services:Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering
Production Grades:Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel

Threaded Full Coupling Dimensions Standrad

ASME:ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799
DIN:DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN:EN10253-1, EN10253-2

Threaded Full Coupling Material & Grades

Type Material Grades/Specifications
Stainless Steel Forged Threaded Full Coupling ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L
ASTM A312/A403 TP304, TP304L, TP316, TP316L
Duplex & Super Duplex Steel Forged Threaded Full Coupling ASTM A 182 F 51, F53, F55 S 31803, S 32205, S 32550, S 32750, S 32760, S 32950
Carbon Steel Forged Threaded Reducing Coupling ASTM/ASME A 105 ASTM/ASME A 350 LF 2, ASTM/ASME A 53 GR. A & B, ASTM A 106 GR. A, B & C
API 5L GR. B, 5L X 42, X 46, X 52, X 60, X 65 & X 70
ASTM/ASME A 691 GR A, B & C
Alloy Steel Forged Threaded Full Coupling ASTM/ASME A 182, A 335 ASTM/ASME A 234 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91
ASTM/ASME A 691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91
Copper Alloy Steel Forged Threaded Reducing Coupling ASTM/ASME SB 111 UNS NO. C 10100, C 10200, C 10300, C 10800, C 12000, C 12200, C 70600, C 71500
ASTM/ASME SB 466 UNS NO. C 70600 (CU-NI-90/10), C 71500 (CU-NI-70/30)
Nickel Alloy Forged Threaded Full Coupling ASTM/ASME SB 336 ASTM/ASME SB 564/160/163/472, UNS 2200 (NICKEL 200), UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8020 (ALLOY 20 / 20 CB 3), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276)

Types of Threaded Full Coupling

ASME B16.11 Threaded Full Coupling

ASME B16.11 Threaded Full Coupling

ASTM A182 SS Threaded Full Coupling

ASME B16.11 Forged Threaded Coupling

ASME B16.11 Forged Threaded Coupling

Threaded Full Coupling Dimensions

asme-b16-11-threaded-full-coupling-dimensions

Forged Screwed Full Coupling 3000LB Threaded

NPSEnd to EndOutside
Diameter
Minimum
Length
of Thread
ADBJ
1/2482810.913.6
3/4513512.713.9
1604414.717.3
1.1/467571718
1.1/2796417.818.4
286761919.2
2.1/2929223.628.9
310810825.930.5
412114027.733

Threaded Reducing Coupling Class 6000 Dimensions NPS 1/2 to 4

NPSEnd to EndOutside
Diameter
Minimum
Length
of Thread
ADBJ
1/2483810.913.6
3/4514412.713.9
1605714.717.3
1.1/467641718
1.1/2797617.818.4
286921919.2
2.1/29210823.628.9
310812725.930.5
412115927.733

Forged Screwed Full Coupling Sizes

DescriptionClass Designation
200030006000

Full-Coupling
1/2 – 41/2 – 21/2 – 2
1/2 – 41/2 – 21/2 – 2
1/2 – 41/2 – 21/2 – 2
Pipe WallSCH 80 / XSSCH 160XXS

ASME B16.11 Threaded Full Coupling Weight Chart

NOMINAL PIPE SIZEEND TO ENDMINIMUM LENGTH OF  THREADOUTSIDE DIAMETER
Inch.Full CouplingHalf Coupling  # 3000# 6000
 AA/2BCDD
1/832A/26.76.41622
1/435A/210.28.11925
3/838A/210.49.12232
1/248A/213.610.92838
3/451A/213.912.73544
160A/217.314.74457
1 1/467A/218175764
1 1/279A/218.417.86476
286A/219.2197692
2 1/292A/228.923.692108
3108A/230.525.9108127
4121A/23327.7140159
 All Dimensions are in mm

ASME B16.11 Threaded Full Coupling Pressure Ratings

Pressure-Temperature ratings for malleable iron threaded fittings (psig) 
TemperatureClass
150300
1/4 – 1 inches1 1/4 – 2 inches2 1/2 – 3 inches
(oF)(oC)
-20 to 150-29 to 66300200015001000
2009326517851350910
25012122515751200825
30014918513601050735
3501771501150900650
400204935750560
450232725600475
500260510450385
550288300300300

Forged Threaded / Screwed Full Coupling Applications

ASME B16.11 Threaded Full Couplings are known for their exceptional performance and are designed to meet various industry needs. We provide a wide range of Forged Screwed Couplings through a global network of stock-keeping branches. These couplings are used in many industries, including:

  • Stainless Steel Forged Threaded Full Coupling: Used in oil and gas pipelines.
  • Forged Threaded Full Coupling: Utilized in the chemical industry.
  • Alloy Steel Threaded Full Coupling: Applied in plumbing.
  • Forged Screwed Full Coupling: Used in heating systems.
  • Threaded Forged Full Coupling: Used in water supply systems.
  • ANSI B16.11 Forged Threaded Full Coupling: Applied in power plants.
  • Threaded Full Coupling: Used in the paper and pulp industry.
  • Forged Screwed Full Coupling: Used for general-purpose applications.
  • Forged Threaded Full Coupling: Used in the fabrication industry.
  • Forged Screwed Full Coupling: Utilized in food processing.
  • Forged Threaded Full Coupling: Applied in structural pipes.

Kaizen Steel Industries Export to

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