Womic Stainless Steel Co., Ltd
ASTM B407 covers nickel alloy seamless pipes and tubes manufactured in cold-worked or hot-finished, annealed condition, including the following grades:
UNS N08120, UNS N08800, UNS N08801, UNS N08810, UNS N08811, UNS N08890, and UNS N06811.
Alloys UNS N08800 and UNS N06811 are typically used in service temperatures up to and including 1100°F (593°C), where good oxidation resistance and mechanical stability are required.
Alloys UNS N08120, UNS N08810, UNS N08811, and UNS N08890 are commonly applied in service temperatures above 1100°F (593°C), where superior creep resistance and rupture strength are essential. These alloys are supplied in the annealed condition with a controlled grain size to ensure optimum mechanical and high-temperature performance within this elevated temperature range.
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|
Outside Diameter,mm |
Tolerance,mm |
Wall Thickness Tolerance,% |
|
|
Cold-Finished |
12.7≤OD＜15.8 |
±0.127 |
±15.0 |
- |
|
15.8＜OD≤38.1 |
±0.19 |
±10.0 |
- |
|
|
38.1＜OD≤88.9 |
±0.254 |
±10.0 |
- |
|
|
88.9＜OD≤114.3 |
±0.381 |
±10.0 |
- |
|
|
114.3＜OD≤152.4 |
±0.508 |
±12.5 |
- |
|
|
152.4＜OD≤168.3 |
±0.635 |
±12.5 |
- |
|
|
Hot-Finished |
63.5≤OD＜139.7 |
±0.787 |
±12.5 |
+28.5/-0 |
|
139.7≤OD≤234.9 |
±1.19 |
±12.5 |
+28.5/-0 |
|
|
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on. Max developed length: 32 meters, also U bending can be offered, each leg length can be 15.24 meters. |
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ASTM B407, Nickel-Iron-Chromium Alloy Tube, Seamless Pipe, Seamless Tube, UNS N08120, UNS N08800, UNS N08801, UNS N08810, UNS N08811, UNS N08890, UNS N06811 |
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|
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
|
Specification ASTM B409 (UNS N08120) |
0.02~0.10 |
≤1.0 |
≤1.5 |
≤0.040 |
≤0.03 |
35.0~39.0 |
23.0~27.0 |
≤2.50 |
≤0.50 |
|
|
Al |
Ti |
B |
Co |
W |
N |
Nb |
Fe |
|
|
Specification ASTM B409 (UNS N08120) |
≤0.40 |
≤0.20 |
≤0.010 |
≤3.0 |
≤2.50 |
0.15~0.30 |
0.4~0.9 |
Bal. |
|
|
Density |
[g/cm3] |
|
8.00 |
|
Specific heat |
[J/kg·K] |
|
472 |
|
Electrical resistivity |
[μΩ·cm] |
|
103 |
|
Thermal conductivity |
[W/m·K] |
|
11.5 |
|
Average coefficient of thermal expansion |
[10-6/°C] |
25~200°C |
14.8 |
|
|
|
25~400°C |
15.6 |
|
25~600°C |
16.2 |
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|
25~800°C |
17.0 |
||
|
Young’s modulus |
[MPa] |
|
19.6 x 104 |
|
Magnetism |
[μ] |
|
None |
|
Melting range |
[°C] |
|
1,360~1,391 |
|
|
0.2% proof stress [MPa] |
Tensile strength [MPa] |
Elongation [%] |
Hardness [HBW] |
|
|
Specification ASTM B409 (UNS N08120) |
≥276 |
≥621 |
≥30 |
— |
|
|
Example |
Hot-rolled plate 16mmt |
318 |
726 |
51 |
176 |
|
|
Test condition |
Rupture time [hr] |
Elongation [%] |
|
|
Example |
Hot-rolled plate 16mmt |
816℃,110MPa |
86 |
65 |
Heat Treatment and Grain Size
|
|
Heat treatment |
Crystal grain size |
|
Specification ASTM B409 (UNS N08120) |
≥1,177℃ |
No.5 or coarser |
Test Methods and Rounding of Values
Unless otherwise specified, observed or calculated values shall be rounded in accordance with the following rules:
Chemical Composition, Hardness, and Tolerances
When expressed in decimal form, values shall be rounded to the nearest unit in the last right-hand digit of the specified limit.
Tensile Strength and Yield Strength
Values shall be rounded to the nearest 1000 psi (6.9 MPa).
Elongation
Values shall be rounded to the nearest 1%.
Grain Size of Alloy 20 Pipe & Tube/ASTM B407 Nickel-Iron-Chromium Alloy Seamless Pipe Tube
For grain sizes 0.0024 in. (0.060 mm) or larger:
Rounded to the nearest multiple of 0.0002 in. (0.005 mm)
For grain sizes less than 0.0024 in. (0.060 mm):
Rounded to the nearest multiple of 0.0001 in. (0.002 mm)
Inspection of the material shall be performed as mutually agreed upon between the manufacturer and the purchaser and shall be specified as part of the purchase contract or order.
Rejection and Rehearing
1. Material that does not conform to the requirements of this specification, or to any authorized modifications thereto, shall be subject to rejection.
2. Test samples representing rejected material shall be retained for a minimum of three (3) weeks from the date of the test report.
If dissatisfaction arises concerning the test results, the manufacturer may submit a request for rehearing within this retention period.
Certification
When specified in the purchase order or contract, the manufacturer shall provide a certification stating that the material has been manufactured, tested, and inspected in accordance with this specification and that test results for representative samples meet all specified requirements.
When required, a detailed test report shall also be furnished to the purchaser.
Product Marking
Each piece of material with an outside diameter of 3/4 in. (19.1 mm) or greater and a length of 3 ft (914 mm) or longer shall be legibly marked with the following information:
Manufacturer’s name or trademark
Trade name of the material or UNS designation
The letters ASTM
ASTM specification number
Heat number
Nominal size
Marking may be applied by any method that does not cause harmful contamination.
For material with an outside diameter less than 3/4 in. (19.1 mm) or length under 3 ft (914 mm), the required identification shall be stenciled or attached to a securely fixed tag on the bundle or shipping container.
Package Marking of Alloy 20 Pipe & Tube/ASTM B407 Nickel-Iron-Chromium Alloy Seamless Pipe Tube
Each bundle or shipping container shall be clearly marked with:
Manufacturer’s name or trademark
Trade name of material or UNS number
The letters ASTM
ASTM specification number
Heat number
Condition of supply
Nominal size
Net weight
Consignor and consignee addresses
Contract or purchase order number
Any additional information specified in the purchase contract or order
Applications of Alloy 20 Pipes & Tubes
Alloy 20 pipes and tubes are specially developed for acidic and corrosive services, including:
Sulfuric Acid Processing Equipment
Chemical & Petrochemical Plants
Heat Exchangers & Condensers
Pharmaceutical & Food Processing Systems
Oil & Gas Refining & Storage
Fertilizer Plants
Pickling Lines & Acid Storage Tanks
Marine & Offshore Equipment
Our Advantages – Why Choose Womic Stainless
Direct Alloy 20 pipe manufacturer and exporter
Full compliance with ASTM / ASME / EN standards
Strict quality control with complete MTC documentation
Competitive factory pricing from China
Strong export experience to Middle East, Europe, Asia, and South America
Custom sizes, special tolerances & project solutions
Fast response, professional technical support
Raw Material Inspection (Alloy 20 Billet / Plate)
Hot Extrusion or Cold Drawing
Cold Rolling / Sizing
Solution Annealing Heat Treatment
Straightening & Surface Finishing
Non-Destructive Testing (UT / ECT)
Final Inspection & Marking
Packing for Export
Plastic caps on both pipe ends
Individual PVC or plastic film wrapping
Wooden cases or steel crates
Bundled with steel strips
Seaworthy export packing
Customized marking & labeling available
Shipping Methods:
Sea Freight (FCL / LCL)
Air Freight
Express Courier (small quantity)
Delivery Terms: FOB / CFR / CIF / DDP
Main Ports: Shanghai, Ningbo, Tianjin
Email: info@womicstainless.com
Website: www.womicstainless.com
Contact Womic Stainless today for Alloy 20 pipe price, technical datasheets, mill test certificates (MTC), and customized solutions. Our experienced sales and engineering team will respond within 24 hours.
