Chlor-Alkali Final-Effect Evaporators
Chlor-alkali plants tube their final-effect caustic evaporators with this low-carbon nickel, ordering each bundle by outside diameter, wall basis and cut length so that every tube matches the tubesheet drawing.
ASTM B163 / ASME SB-163 / UNS N02201 / W.Nr. 2.4068
Nickel 201 Seamless Tubes Manufacturer in Thailand
For caustic evaporators and heat exchangers, Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd. produces Nickel 201 seamless tubes at its Ban Bueng, Chonburi plant to ASTM B163 / ASME SB-163, in low-carbon nickel UNS N02201 (W.Nr. 2.4068). In our nickel alloy seamless tubes range it is the low-carbon version of commercially pure nickel, ordered by outside diameter and wall and delivered annealed, stress-relieved or stress-relieved with annealed ends. Offers and certificates come from our office in Bang Phli, Samut Prakan.
Nickel 201 seamless tubeUNS N02201 / W.Nr. 2.4068
EN 10204 3.1 certificate / 3.2 on request
Specifications of Nickel 201 Seamless Tubes
The rows below set out how ASTM B163 asks the tube to be ordered for UNS N02201, the delivery conditions it lists and the tests made on each tube and each lot. Our diameter, wall and length offer is set out with the tolerance bands further down.
- Standard
- ASTM B163 / ASME SB-163
- Grade
- Nickel 201
- Low-carbon nickel (UNS N02201)
- Ordering Basis
- Outside diameter, minimum or average wall in inches (not gage number), and length
- Delivery Condition
- Annealedstress-relieved, or stress-relieved with annealed ends
- Test on Each Tube
- Hydrostatic or nondestructive electric test
- Lot Tests
- One chemical analysis and one tension test per lot, plus the flare test
- Annealed-End Hardness
- Rockwell B62 maxon stress-relieved tube with annealed ends
- Certification
- EN 10204 3.13.2 on request
ASTM B163 is the Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes, and for Boiler and Pressure Vessel Code work its related specification is ASME SB-163, so a code line reads ASME SB-163 UNS N02201 seamless tube. The standard lists the grade as low-carbon nickel, UNS N02201: Nickel 201 is the commercial name, and the UNS number is the designation our certificate reports. B163 also lists other nickel alloys, among them UNS N08825, which we make as Incoloy 825 seamless tubes, each alloy with its own composition and tensile rows. ASTM B161 also covers seamless tube in UNS N02201, while our heat-exchanger tube in this grade is made and certified to ASTM B163. Process lines in the same grade use Nickel 201 seamless pipes, which are ordered by standard pipe size and schedule.
Every tube is either hydrostatically tested or given a nondestructive electric test, eddy current or ultrasonic, at our option unless the purchase order names the method, and a tube that shows leakage is rejected. One chemical analysis and one tension test are made for each lot, and the same lot supplies the flare test: one end is expanded with a 60° included-angle tool until the specified outside diameter has grown by 30%, and it must show no cracking through the wall. Results for each Nickel 201 seamless tube consignment are reported on an EN 10204 3.1 (3.2 on request) material test certificate. Tests you wish to witness are agreed in the purchase contract, and third-party inspection is available on request.
Seamless 2.4068 Nickel Tube Chemistry to ASTM B163
The heat analysis of every seamless 2.4068 nickel tube order is reported against the seven limits below. Only nickel is a minimum, determined arithmetically by difference; carbon, at 0.02% maximum, is the limit that defines the low-carbon grade.
- NiNickel, 99.0 min
- FeIron, 0.40 max
- MnManganese, 0.35 max
- SiSilicon, 0.35 max
- CuCopper, 0.25 max
UNS N02201201
| Element | Limit per ASTM B163 / ASME SB-163 (%) |
|---|---|
| Ni (Nickel) | 99.0 min |
| Cu (Copper) | 0.25 max |
| Fe (Iron) | 0.40 max |
| Mn (Manganese) | 0.35 max |
| C (Carbon) | 0.02 max |
| Si (Silicon) | 0.35 max |
| S (Sulfur) | 0.01 max |
Carbon is the only limit in which the grade differs from Nickel 200 seamless tubes; the other six are shared. If you plan a product (check) analysis on received tube, ASTM B163 places it wholly with the purchaser.
Tensile and Hardness Limits for ASME SB-163 UNS N02201 Seamless Tube
B163 gives low-carbon nickel one row of minimums for each condition, with no split by tube size, and adds a hardness ceiling that applies only to annealed ends.
| Condition | Tensile Strength, min, ksi (MPa) | Yield Strength (0.2% offset), min, ksi (MPa) | Elongation in 2 in. or 50 mm (or 4D), min (%) | Rockwell Hardness of Annealed Ends |
|---|---|---|---|---|
| Annealed | 50 (345) | 12 (83) | 40 | No requirement |
| Stress-relieved | 60 (414) | 30 (207) | 15 | B62 max |
Swipe sideways to see the full table.
Stress-relieved tube is held to the higher tensile and yield minimums and annealed tube to the higher elongation, so the condition named on the order fixes the row the lot tension result must meet.
Annealed Ends on Stress-Relieved Alloy 201 Seamless Tube
ASTM B163 lists UNS N02201 annealed or stress-relieved, and its nonmandatory appendix on conditions adds a third choice, stress-relieved with annealed ends: the same stress-relieved tube with its ends annealed. An order for Alloy 201 seamless tube in that condition states the length to be annealed and whether one end or both are treated. The B62 hardness ceiling then applies to those annealed ends only, while the body of the tube is accepted on the stress-relieved tensile row.
Equivalent Designations of Nickel 201
B163 identifies the grade only as low-carbon nickel, UNS N02201. The European, Japanese and British designations below help read a foreign drawing or datasheet and make no statement of conformity with those national standards.
- Commercial nameNickel 201, also written Alloy 201
- ASTM B163 / ASME SB-163 (USA)UNS N02201
- Europe (W.Nr.)2.4068
- Europe (EN material name)LC-Ni 99
- Japan (JIS)NW 2201
- UK (BS)NA 12
Whichever of these a drawing quotes, the tube is ordered and certified as UNS N02201.
Ordering Seamless WNR 2.4068 Tube by Outside Diameter and Wall
Seamless WNR 2.4068 tube is offered from 6 mm to 457 mm OD with walls from 1 mm to 65 mm, in single lengths up to 22 m. Each ASTM B163 Nickel 201 seamless tube line gives the outside diameter, the minimum or average wall in inches rather than a gage number, and the length.
For tube from 1/2 to 3 in. (12.7 to 76.2 mm) OD, ASTM B163 prints these permitted variations for low-carbon nickel:
| Nominal OD, in. (mm) | OD Variation, in. (mm) | Average Wall Variation (%) | Minimum Wall Variation (%) |
|---|---|---|---|
| 1/2 to 5/8 (12.7 to 15.9), excl | +0.005 (0.13), -0 | ±12.5 | +25.0, -0 |
| 5/8 to 1 1/2 (15.9 to 38.1), incl | ±0.005 (0.13) | ±10.0 | +20.0, -0 |
| Over 1 1/2 to 3 (38.1 to 76.2), incl | ±0.010 (0.25) | ±10.0 | +22.0, -0 |
Swipe sideways to see the full table.
A wall variation applies to the wall as ordered, either minimum or average, never to both. Individual diameter readings include ovality; on thin-wall tube, with a wall of 3% of the OD or less, the mean diameter must fall inside the table while single readings may exceed it by a further 1/2% of the nominal OD. Eccentricity is limited to plus or minus 10% of the measured average wall of the section. For sizes outside these three bands, the applicable tolerances are written into our offer, and U-bent tube can be added to the order as the B163 supplementary requirement S1.
Industrial Applications of Seamless Nickel Alloy 201 Tube
Seamless nickel alloy 201 tube handles heat-transfer duty with caustic alkalis, neutral salt solutions and de-aerated acids, and Nickel 201 is the low-carbon grade chosen for hot caustic service.
Strong Caustic Heat Exchangers
Chemical and petrochemical units build heat exchangers that handle strong caustics, acids and salts from the tube, with a hydrostatic or electric test on every length before the bundle is assembled.
Caustic Handling in Food Processing
Food processing plants use the tube in heat-transfer equipment that handles caustic solutions, choosing the annealed or stress-relieved condition on the order to suit how each exchanger is built.
Desalination and Offshore Water Systems
Desalination plants, marine water handling circuits and offshore systems take the grade as heat-transfer tubing, cut to the length each exchanger shell needs, in single lengths up to 22 m.
Power Station Heat Transfer Systems
Power generation plants fit the tube into their heat transfer systems, and each lot reaches site with its chemical analysis, tension and flare results already reported on the certificate.
Packing and Bundle Marking of Seamless Alloy 2.4068 Tube
Bundling
Straight lengths strapped on timber bearers or packed in wooden cases, with plastic caps on both ends of every tube.
Bundle marking
Each bundle or shipping container shows the material name, the condition (temper), ASTM B163, the size, the gross, tare and net weights, the consignor and consignee addresses and the contract or order number.
Certificate
The EN 10204 3.1 (3.2 on request) certificate for each consignment of seamless alloy 2.4068 tube, with a packing list per bundle or case.
Shipment terms
FOB, CIF or CFR from the port of loading named in our offer.
Dispatch
The order acknowledgment confirms the mill slot and the shipping date.
Seamless Nickel 201 Tube Price per kg
Seamless Nickel 201 tube is indicatively priced at USD 25 to 60 per kg. As commercially pure nickel, it follows the nickel market almost directly, and within the range the outside diameter, wall and tolerance, the delivery condition, the test on each tube, cut lengths and the quantity decide where an order falls. Small OD and thin wall need more cold-drawing and annealing passes per kilogram. A size list with tube counts gets a firm price.
Indicative price, Nickel 201 Seamless Tubes
USD 25 to 60 per kg
Indicative only. Send your sizes and specification to Thaida for a firm quotation.
- Outside diameter
- Wall thickness
- Length
- Quantity
- Testing and certification
- Nickel price
Ban Bueng Plant and Bang Phli Office
ASTM B163 Nickel 201 seamless tube is made and tested at our plant, 154 Moo.1 Map Phai, Ban Bueng, Chonburi 20170, Thailand, and offers, certificates and shipping documents are issued from 89/18 Moo.15 Enterprize Park, Bangna-Trad Road, Bang Kaeo, Bang Phli, Samut Prakan 10540, Thailand. We supply projects across Thailand and export to Singapore, Malaysia, Vietnam, Indonesia, the Philippines and India.
Factory154 Moo.1 Map Phai, Ban Bueng,
Chonburi 20170, Thailand
Chonburi 20170, Thailand
Office89/18 Moo.15 Enterprize Park, Bangna-Trad Road,
Bang Kaeo, Bang Phli, Samut Prakan 10540, Thailand
Bang Kaeo, Bang Phli, Samut Prakan 10540, Thailand
Exporting to
- Singapore
- Malaysia
- Vietnam
- Indonesia
- Philippines
- India
Frequently Asked Questions: Ordering Nickel 201
Should the wall be ordered as a minimum or as an average?
Order minimum wall when the exchanger design is based on the thinnest permitted wall. On 5/8 to 1 1/2 in. (15.9 to 38.1 mm) tube, a minimum-wall order allows nothing under the figure and up to 20.0% over it, while an average-wall order allows 10.0% either way. Convert a gage-number callout to a decimal wall in inches first.
How is the hardness of annealed ends checked?
By the Rockwell test or an equivalent method, with B62 as the maximum for low-carbon nickel, on 3% of each lot of tubes with annealed ends and on no other tube. For walls under 0.050 in. (1.27 mm), ASTM B163 suggests the Rockwell superficial or Vickers test, since the regular Rockwell test needs caution on thin material.
How much longer than ordered may a cut tube be?
Up to 1/8 in. (3.2 mm), or up to 1/4 in. (6.4 mm) for lengths over 30 ft (9.1 m); ASTM B163 states both as plus figures. Each tube must also be reasonably straight and free of bends or kinks. Order the shortest length the bundle drawing accepts; single lengths are offered up to 22 m.
When is the hydrostatic test made on tube with annealed ends?
Before the ends are annealed. The stress-relieved tube is pressure tested first, and its tension test is also taken before end annealing. The test pressure is 1000 psi (6.9 MPa), provided the resulting fiber stress stays within the allowable value the standard sets for the alloy and condition, and the tube must show no evidence of leakage.
Does ASTM B163 require a certificate with every order?
Only when the purchase order or contract specifies one; a report of the test results is also furnished only when specified. We issue an EN 10204 3.1 (3.2 on request) certificate with every consignment regardless, giving the heat analysis, the lot tension and flare results, the annealed-end hardness where it applies and the test made on each tube.
What changes if the drawing calls for Nickel 200 instead?
The carbon limit moves from 0.02% to 0.15% maximum, and the B163 minimums rise to 55 ksi (379 MPa) tensile and 15 ksi (103 MPa) yield annealed, or 65 ksi (448 MPa) and 40 ksi (276 MPa) stress-relieved. Annealed ends may reach B65 instead of B62. Elongation minimums, tolerances and tests stay the same.
Which tubes are grouped into one lot for flaring and tension testing?
Tubes of the same heat, nominal size apart from length, and condition (temper); chemical analysis is lotted by heat alone. One end of 1% of the finished lengths in each lot is flared, or one length when the lot has fewer than 100 tubes. Tube of unidentified heat is lotted in batches of not more than 500 lb (230 kg).
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or email sales@thaida.co.th