ASTM A182 F5 Forged Fittings Manufacturer and Supplier
Metinox Overseas is a trusted manufacturer and supplier of ASTM A182 F5 forged fittings in premium 5Cr-0.5Mo alloy steel, specifically designed for socket weld and threaded connections in high temperature and corrosive refinery applications. Supplied under ASTM A182 / ASME SA182, these forged fittings cover 1/4 inch to 4 inch NB in Class 3000, 6000, and 9000 LB per ASME B16.11. F5 forged fittings are a part of our complete Alloy Steel Pipe Fittings range, which is manufactured to order and stocked for quick export to refineries, EPC contractors and distributors across the globe.
A182 F5 and ASTM A234 WP5 have the same chemistry (5Cr-0.5Mo) but are two completely different product forms. F5 is a forged small-bore (1/4"-4") socket weld or threaded fitting and ASTM A234 WP5 Pipe Fittings are large bore, wrought buttweld fittings. For a high-temperature refinery piping system, both are needed, WP5 for the main line and A182 F5 for instrument taps and small-bore connections on the same piping system.
Table of Contents
- ASTM A182 F5 Forged Fittings Manufacturer and Supplier Overview
- ASTM A182 F5 Forged Fittings Specification
- Types of ASTM A182 F5 Forged Fittings
- A182 F5 vs A234 WP5: Same Grade, Different Spec
- ASTM A182 F5 Chemical Composition
- ASTM A182 F5 Mechanical Properties
- ASTM A182 F5 Equivalent Standards
- ASTM A182 F5 Forged Fitting Size Chart
- ASTM A182 F5 Forged Fittings Weight Chart
- ASTM A182 F5 Forged Fittings Pressure Rating Chart
- ASTM A182 F5 Forged Fittings Tolerance Chart
- ASTM A182 F5 Forged Fittings Heat Treatment Chart
- Welding & PWHT Requirements for A182 F5
- F5 vs F11 Forged Fittings: Grade Comparison
- ASTM A182 F5 Forged Fittings Applications
- Related Products
- Frequently Asked Questions
ASTM A182 F5 Forged Fittings Specification
ASTM A182 F5 Forged Fittings Sizes
- Size:1/8 to 4" NB
- Class :2000 to 9000 LBS
- Outlet: 1/2 to 14"
- Method: Forged/CNC
Alloy Steel F5 Threaded Elbow Standards
- ASTM A182
- ASME SA182
- UNS K41545
- ISO 4955-4 P5
Forging Method
- Cold/Hot Forging
- Open /Closed Die Forging
- Impression Die Forging
- Upset Forging
- Drop Forging
Standards Must Meet
- ASME B16.11
- MSS SP-95, MSS SP-79
- MSS SP-97
- MSS SP-83
- BS 3799
Value Added Services
- Age hardening
- Heat Treatment
- Q & T
- Annealed
- Normalizing
Manufacturing Shape
- Elbow
- Cap
- Tee
- Coupling
- Cross
UNS K41545 Branch Fitting Finish
- Proof Machined
- Forged Black
Schedule
- Class 9000: SCH XXS
- Class 6000: SCH 160
- Class 3000 : SCH 80 / XS
Capability
- Forging, Machine
- Heat Treat
- Sawing
Thread
- BSP
- NPTF
- NPT
- BSPT
- Many More
SA182F5 Forged Reducer Testing
- Chemical testing
- PMI/NDT Testing
- Hardness Testing
- Ultrasonic Testing
F5 Steel Forged Tee Packaging
- Carton Box
- Protective Paper
- Wooden Case
- Pallets
Types of ASTM A182 F5 Forged Fittings
Pipe Coupling
Olets
Threaded Elbow
Forged Union
Forged Plug
Socket Weld Inserts
Socket Weld Tee
Forged Reducer
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Request a Quote from Metinox OverseasA182 F5 vs A234 WP5: Same Grade, Different Spec
Procurement engineers frequently ask whether they need A182 F5 or A234 WP5. The answer depends on connection type, not material. Both cover identical 5Cr-0.5Mo chemistry. The table below clarifies the distinction.
| Parameter | ASTM A182 F5 | ASTM A234 WP5 |
|---|---|---|
| Product Form | Forged Fitting | Wrought Buttweld Fitting |
| Connection Type | Socket Weld / Threaded | Butt Weld |
| Typical Size Range | 1/4 inch to 4 inch NB | 1/2 inch to 48 inch NB |
| Dimensional Standard | ASME B16.11 | ASME B16.9 |
| Pressure Classes | 3000 / 6000 / 9000 LB | Schedule-based |
| Chemistry (UNS) | S50200 (5Cr-0.5Mo) | S50200 (5Cr-0.5Mo) |
| Typical Application | Instrument taps, small-bore connections | Main-line large-bore butt-welded joints |
ASTM A182 F5 Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | - | 0.15 |
| Chromium (Cr) | 4.00 | 6.00 |
| Molybdenum (Mo) | 0.44 | 0.65 |
| Manganese (Mn) | 0.30 | 0.60 |
| Silicon (Si) | 0.50 | 1.00 |
| Phosphorus (P) | - | 0.025 |
| Sulphur (S) | - | 0.025 |
| Nickel (Ni) | - | 0.50 |
Values per ASTM A182/A182M Table 1. All values are maximums unless a range is stated. Verify against your controlled copy of the current edition.
ASTM A182 F5 Mechanical Properties
| Property | Metric (MPa) | Imperial (ksi) |
|---|---|---|
| Tensile Strength (min) | 415 MPa | 60 ksi |
| Yield Strength (min, 0.2% offset) | 205 MPa | 30 ksi |
| Elongation in 2 inches (min) | 20% | 20% |
| Reduction of Area (min) | 45% | 45% |
| Hardness (max) | 217 HBW | 217 HBW |
Hardness 217 HBW max corresponds to ≤22 HRC. Confirm NACE MR0175/ISO 15156 applicability with your project specification for sour-service circuits.
ASTM A182 F5 Equivalent Standards
| Standard System | Grade / Designation | Notes |
|---|---|---|
| ASTM / ASME | A182 F5 / SA182 F5 | Forged fittings (this spec) |
| UNS | K41545 | Correct designation for A182 F5 |
| DIN / EN | 1.7362 / 12CrMo19-5 | German / European equivalent |
| ASTM - Pipe | A335 P5 | Same 5Cr-0.5Mo; seamless pipe |
| ASTM - Casting | A217 C5 | Same 5Cr-0.5Mo; valve / fitting castings |
| ASTM - BW Fitting | A234 WP5 | Same 5Cr-0.5Mo; wrought buttweld fittings |
ASTM A182 F5 Forged Fitting Size Chart
| Nominal Pipe Size (NPS) | Outside Diameter OD (in) | Minimum Bore Diameter (in) | Socket Depth (in) |
|---|---|---|---|
| 1/8 | 0.41 | 0.25 | 0.18 |
| 1/4 | 0.54 | 0.38 | 0.25 |
| 3/8 | 0.675 | 0.50 | 0.31 |
| 1/2 | 0.84 | 0.62 | 0.38 |
| 3/4 | 1.05 | 0.82 | 0.44 |
| 1 | 1.315 | 1.05 | 0.56 |
| 1-1/4 | 1.66 | 1.38 | 0.62 |
| 1-1/2 | 1.9 | 1.61 | 0.69 |
| 2 | 2.375 | 2.07 | 0.81 |
| 2-1/2 | 2.875 | 2.47 | 0.94 |
| 3 | 3.5 | 3.07 | 1.06 |
| 4 | 4.5 | 3.97 | 1.25 |
ASTM A182 F5 Forged Fittings Weight Chart
| Nominal Pipe Size (NPS) | Weight (lbs) | Weight (kg) |
|---|---|---|
| 1/4 inch | 0.10 | 0.045 |
| 3/8 inch | 0.12 | 0.054 |
| 1/2 inch | 0.18 | 0.082 |
| 3/4 inch | 0.28 | 0.127 |
| 1 inch | 0.45 | 0.204 |
| 1-1/4 inch | 0.70 | 0.318 |
| 1-1/2 inch | 1.00 | 0.454 |
| 2 inch | 1.50 | 0.682 |
| 2-1/2 inch | 2.30 | 1.045 |
| 3 inch | 3.50 | 1.590 |
| 4 inch | 6.10 | 2.770 |
| 5 inch | 9.50 | 4.318 |
| 6 inch | 13.50 | 6.136 |
ASTM A182 F5 Forged Fittings Pressure Rating Chart
| Class | Temperature (°F) | Pressure (PSI) |
|---|---|---|
| 150 | 100 | 290 |
| 150 | 200 | 260 |
| 150 | 300 | 230 |
| 300 | 100 | 750 |
| 300 | 200 | 680 |
| 300 | 300 | 620 |
| 600 | 100 | 1500 |
| 600 | 200 | 1360 |
| 600 | 300 | 1240 |
| 900 | 100 | 2250 |
| 900 | 200 | 2040 |
| 900 | 300 | 1860 |
| 1500 | 100 | 3750 |
| 1500 | 200 | 3400 |
| 1500 | 300 | 3100 |
ASTM A182 F5 Forged Fittings Tolerance Chart
| Nominal Pipe Size (NPS) | Wall Thickness (in) | Tolerance Wall Thickness (in) | Socket Depth (in) | Tolerance Socket Depth (in) | Socket Bore Diameter (in) | Tolerance Socket Bore (in) |
|---|---|---|---|---|---|---|
| 1/8 | 0.12 | +/- 0.01 | 0.26 | +/- 0.02 | 0.41 | +/- 0.02 |
| 1/4 | 0.14 | +/- 0.02 | 0.35 | +/- 0.03 | 0.54 | +/- 0.02 |
| 3/8 | 0.16 | +/- 0.02 | 0.40 | +/- 0.03 | 0.68 | +/- 0.03 |
| 1/2 | 0.18 | +/- 0.02 | 0.47 | +/- 0.03 | 0.84 | +/- 0.03 |
| 3/4 | 0.20 | +/- 0.02 | 0.53 | +/- 0.03 | 1.05 | +/- 0.03 |
| 1 | 0.22 | +/- 0.02 | 0.58 | +/- 0.03 | 1.32 | +/- 0.03 |
| 1-1/4 | 0.24 | +/- 0.02 | 0.62 | +/- 0.03 | 1.66 | +/- 0.04 |
| 1-1/2 | 0.26 | +/- 0.02 | 0.69 | +/- 0.04 | 1.90 | +/- 0.04 |
| 2 | 0.28 | +/- 0.02 | 0.74 | +/- 0.04 | 2.38 | +/- 0.04 |
| 2-1/2 | 0.30 | +/- 0.03 | 0.82 | +/- 0.04 | 2.88 | +/- 0.04 |
| 3 | 0.32 | +/- 0.03 | 0.86 | +/- 0.04 | 3.50 | +/- 0.04 |
| 4 | 0.34 | +/- 0.03 | 1.00 | +/- 0.04 | 4.50 | +/- 0.05 |
| 5 | 0.36 | +/- 0.03 | 1.12 | +/- 0.04 | 5.56 | +/- 0.05 |
| 6 | 0.38 | +/- 0.03 | 1.25 | +/- 0.04 | 6.62 | +/- 0.05 |
| 8 | 0.42 | +/- 0.03 | 1.50 | +/- 0.05 | 8.62 | +/- 0.06 |
ASTM A182 F5 Forged Fittings Heat Treatment Chart
| Heat Treatment Process | Temperature Range (°C) | Temperature Range (°F) |
|---|---|---|
| Normalizing | 870 to 900 | 1600 to 1650 |
| Annealing | 760 to 815 | 1400 to 1500 |
| Tempering | 675 to 730 | 1250 to 1350 |
| Hardening | 950 to 1050 | 1740 to 1920 |
| Stress Relieving | 540 to 680 | 1000 to 1250 |
Welding & PWHT Requirements for A182 F5
ASTM A182 F5 (5Cr-0.5Mo) is an air-hardening alloy requiring preheat and post-weld heat treatment (PWHT). Preheat to 200-300°C before welding; maintain interpass temperature. Perform PWHT at a minimum of 675°C (1250°F) to relieve residual stress and restore toughness. Use filler metals matching 5Cr-0.5Mo chemistry, such as E/ER80S-B6 or E502. Request Metinox’s PWHT certificates and welding procedure documentation for site fabrication.
F5 vs F11 Forged Fittings: Grade Comparison
When specifying alloy steel forged fittings, engineers often choose between ASTM A182 F5 andASTM A182 F11 Forged Fittings. The key differentiator is chromium content and the service environment.
| Property | A182 F5 (5Cr-0.5Mo) | A182 F11 (1.25Cr-0.5Mo) |
|---|---|---|
| Chromium Content | 4.0 to 6.0% | 1.00 to 1.50% |
| Molybdenum Content | 0.44 to 0.65% | 0.44 to 0.65% |
| UNS Number | S50200 | K11597 |
| Sulphidic Corrosion Resistance | Superior (higher Cr) | Moderate |
| Naphthenic Acid Resistance | Superior | Moderate |
| Oxidation Resistance (max temp) | Up to 600 deg C | Up to 550 deg C |
| Typical Refinery Application | Crude overhead, vacuum tower, hydrotreater | Steam lines, moderate-temp process piping |
| Select F5 When | High sulphur crude, naphthenic acid streams | Lower sulphur environment, cost-sensitive |
For high chromium applications in power generation, see also ASTM A182 F22 Forged Fittings (2.25Cr-1Mo), which targets elevated-temperature creep resistance over sulphidic corrosion resistance. Metinox Overseas supplies both A182 F5 forged fittings and ASTM A234 WP5 buttweld fittings from the same 5Cr-0.5Mo heat, allowing a single certified MTR to cover the entire circuit.
ASTM A182 F5 Forged Fittings Applications
ASTM A182 F5 forged fittings are the specified choice in the following service environments:
- Crude Overhead Systems: Sulphidic corrosion from H2S and mercaptan compounds in atmospheric and vacuum distillation overhead lines.
- Vacuum Tower Internals and Taps: High-temperature, sulphur-laden streams at reduced pressure where naphthenic acid corrosion is a primary concern.
- Hydrotreater and Hydrocracker Circuits: Hydrogen partial pressure environments at 300 to 450 deg C requiring both oxidation and sulphidic attack resistance.
- Instrument Tapping Points: Small-bore half-couplings and tees for pressure, temperature, and flow instruments on alloy steel main lines.
- Chemical Process Plants: Wherever a 5Cr-0.5Mo main line (A335 P5 pipe) requires small-bore branches or instrument connections, A182 F5 fittings maintain alloy continuity.
For broader alloy steel piping needs, visit our Pipe Fittings category hub and our complete Alloy Steel Pipes range.
Get a Fast Quote for ASTM A182 F5 Forged Fittings
Metinox Overseas is a trusted manufacturer and exporter of ASTM A182 F5 forged fittings in Class 3000, 6000, and 9000 LB, covering socket weld and threaded types from 1/4 inch to 4 inch NB. We serve refineries, EPC contractors, and distributors worldwide with full MTR documentation and third-party inspection. Submit your material requisition or bill of materials for a competitive quotation within 24 hours.
Contact Us / Request a QuoteFrequently Asked Questions: ASTM A182 F5 Forged Fittings
Both grades carry identical 5Cr-0.5Mo chemistry (UNS S50200), but the product form differs. A182 F5 covers forged socket weld and threaded fittings per ASME B16.11 for small-bore connections (1/4 inch to 4 inch). ASTM A234 WP5 covers wrought buttweld fittings per ASME B16.9 for large-bore butt-welded main-line joints. A complete refinery piping system typically requires both on the same circuit.
ASTM A182 F5 forged fittings are manufactured per ASME B16.11 in Class 2000 LB (threaded, 1/4 inch to 2 inch), Class 3000 LB (socket weld and threaded, 1/4 inch to 4 inch), Class 6000 LB (socket weld and threaded, 1/4 inch to 4 inch), and Class 9000 LB (socket weld and threaded, 1/4 inch to 2 inch). Class selection is governed by the design pressure, temperature, and piping class of the connected system.
Specify A182 F5 (5Cr-0.5Mo) when the process stream contains significant sulphur compounds, naphthenic acid, or operates above approximately 450 deg C, because the higher chromium content (4 to 6%) provides superior sulphidic and oxidation resistance. Specify A182 F11 (1.25Cr-0.5Mo) for moderate-temperature, lower-sulphur environments such as steam superheater headers and process lines below 550 deg C where the reduced alloy content offers a cost advantage without compromising service life.
Yes. ASTM A182 F5 socket weld fittings share the same 5Cr-0.5Mo chemistry as A335 P5 pipe and are the correct mating component for instrument taps and small-bore branches on P5 piping systems. Metinox Overseas supplies full traceability documentation including EN 10204 3.1 mill test reports (MTRs), heat and lot certificates, dimensional inspection reports, and third-party inspection (TPI) by approved agencies such as Bureau Veritas, SGS, TUV, or Lloyd's Register on request.
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