Socket-Weld & Threaded Forged Fittings

Small-bore forged fittings in 2000#, 3000# and 6000#: elbows, tees, crosses, caps, couplings, unions, bushings, plugs and hex nipples. Socket-weld and NPT ends from 1/8" to 4" — the workhorses of instrumentation, utility and process small-bore piping.

NPS 1/8" – 4"2000# / 3000# / 6000#ASME B16.11 · NPT per B1.20.1A105 · A350 LF2 · A182

Socket-Weld & Threaded Forged Fittings

Below NPS 4, welding a full-penetration butt joint on small-bore pipe is slow and hard to inspect — so the industry uses forged socket-weld and threaded fittings instead. CREATEEL supplies the complete ASME B16.11 family: 90° and 45° elbows, tees, crosses, couplings, half couplings, caps, unions, bushings, plugs and bar-stock nipples in 2000/3000/6000 (SW) and 2000/3000/6000 (THD) pressure classes.

Fittings are die-forged, heat treated and fully machined in-house, with NPT threads cut or rolled per ASME B1.20.1. Galvanized finish and special grades (low-temp, stainless, duplex) are available for process, instrument and utility piping.

Every CREATEEL fitting is shipped with full heat-number traceability from raw material certificate to the stamped marking on the piece itself. Dimensional reports, heat treatment charts and EN 10204 3.1 inspection certificates are issued as standard, with 3.2 certification by third-party inspection (SGS, BV, TÜV) available on request before shipment.

Technical Specifications

Applicable Standards

Standard	Scope	Note
ASME B16.11	SW & threaded forged fittings	Dimensions/ratings
ASME B1.20.1	NPT threads	Thread form
MSS SP-79 / 83 / 95	SW/THD fittings, nipples	Supplementary
ASTM A105 / A182	Material specs	Carbon/stainless
EN 10241 / 10242	Malleable / forged (Europe)	European
GB/T 14383	Forged steel fittings	Chinese

Dimensions (ASME B16.11)

Family	Sizes	Pressure classes
Socket-weld (SW)	1/8″–4″	2000 / 3000 / 6000#
Threaded (NPT)	1/8″–4″	2000 / 3000 / 6000#
Unions & couplings	1/8″–4″	2000 / 3000 / 6000#
Bushings / plugs / nipples	1/8″–4″	2000 / 3000 / 6000#

Socket and thread dimensions per ASME B16.11 tables; 6000# ~ Sch 160 pipe. Schedules/ratings on request.

Material Grades

Family	Grade	Spec
Carbon steel	A105 / A105N	ASTM A105
Low-temperature	A350 LF2 / LF3	ASTM A350
Stainless	A182 F304/304L, F316/316L, F321	ASTM A182
Alloy	A182 F11 / F22	ASTM A182
Duplex	A182 F51 / F53	ASTM A182

Coating & Surface Treatment

Black / hot-dip galvanized (ASTM A153).
Threads gauged 100% to ASME B1.20.1.
Stainless pickled & passivated.
Anti-rust oil for export.

Packing & Shipping

Cartons, then plywood cases, seaworthy.
Threads capped, barcoded.
EN 10204 3.1 MTC; 3.2 with SGS / BV / TÜV on request.
MOQ 5 t per item; lead time 15–30 days.

Types & Range

Socket-Weld (SW)

Pipe seated in socket, fillet welded — leak-tight small bore.

Threaded (NPT)

Taper-thread assembly for weld-free, low-hazard lines.

Unions & couplings

Break points and connectors within the small-bore system.

Bushings, plugs, nipples

The reduction, blanking and extension items of B16.11.

Materials & Standards

A105 carbon steel as standard, A350 LF2/LF3 for low temperature, A182 F304L/F316L stainless and F51/F53 duplex for corrosive service. Threads cut to ASME B1.20.1 (NPT).

Standards in brief: ASME B16.11 for dimensions, ratings and testing; threads per ASME B1.20.1; EN 10204 3.1 / 3.2 certification available.

Manufacturing Process

Closed-die forging and full machining of ASME B16.11 forged fittings — from certified bar to gauged, marked and galvanized pieces.

Bar Stock & Cutting

Certified A105/A182 bar saw-cut to billet; chemistry and hardness verified per heat.

Hot Closed-Die Forging

Billets forged 1100–1200°C in closed dies for dense, crack-free shapes with good grain flow.

Normalizing / Annealing

Heat treatment per grade; mechanical test coupons forged with each lot.

CNC Machining

Hex flats, sockets and contours machined to B16.11 dimensions in one setup for concentricity.

Threading / Socket Cutting

NPT threads cut or rolled and gauged 100%; SW sockets machined and checked.

Surface Finishing

Shot blasted; hot-dip galvanized where specified; anti-rust oil for bare carbon steel.

Inspection

Dimensional sampling per AQL, thread gauge records, hardness test, visual per MSS SP-55.

Marking & Packing

Class, size and material stamped; boxed and cartoned with barcode labels.

Applications

PRODUCT applications copy

INSTRUMENT

Instrumentation & Utility

Small-bore SW/NPT joints for gauges, valves and analysers.

✓ ASME B16.11 / NPT

PROCESS

Process Skids

Leak-tight fillet-welded joints in compact racks.

✓ A182 F316L / NACE

OIL & GAS

Pipeline Auxiliaries

Branch and sample take-offs on utility headers.

✓ A105 / A350 LF2

POWER

Power Plant Piping

High-pressure instrument and chemical-injection points.

✓ 6000# / ASME B31.1

MARINE

Marine & Offshore

Low-temp forged fittings for platforms.

✓ A350 LF2

CONSTRUCTION

HVAC & Building Services

Plant-room small-bore joints.

✓ A105 / A105N

Frequently Asked Questions

What are forged pipe fittings?

Small-bore fittings machined from forged billet — elbows, tees, couplings, unions, caps, crosses and hex nipples — in socket-weld and threaded types per ASME B16.11, typically NPS 1/8″–4″.

Threaded or socket weld — which should I use?

Threaded for easy assembly and low-criticality lines; socket weld where higher pressure, vibration or leak-tightness matters — there is no thread path to weep.

What do the pressure classes mean?

Class 2000/3000/6000 for threaded and 3000/6000/9000 for socket weld. The class couples to pipe schedule: 3000 ≈ Sch 80, 6000 ≈ Sch 160, 9000 ≈ XXS wall.

What thread standard do you use?

NPT per ASME B1.20.1 as standard; BSPT/BS 21 and other threads on request.

What sizes and materials do you cover?

NPS 1/8″–4″; ASTM A105, A350 LF2, A182 F304/304L/F316/316L, F51/F55 duplex — all heat-number traceable.

How do you control quality?

Tensile and hardness testing per heat, thread gauging (NPT go/no-go), dimensional check, PMI for stainless; EN 10204 3.1 MTC.

What surface finishes are available?

Natural (as-machined), black phosphated, anti-rust oil, or hot-dip galvanized for corrosive environments.

What is your MOQ and lead time?

Very flexible — carton-lot quantities welcome. Stock items ship in 5–10 days; production 15–30 days.

How are forged fittings packed?

Small pieces are sealed in poly bags, then cartoned on pallets with size and grade labels — ready for retail or project distribution.