Stockist & supplier ASTM B168 · ASTM B443 · ASME SB-168 · ASME SB-443
Inconel 600 & 625 Plates — ASTM B168 & B443
Alloy 600 and 625 plates are nickel-chromium alloy plates for high-temperature and corrosive service. Teshi Group stocks and supplies UNS N06600 plate to ASTM B168 and UNS N06625 plate to ASTM B443. Quotes are sent in 24–48 hours.
Also called: Inconel 600 plate, Inconel 625 plate, UNS N06600 plate, UNS N06625 plate, alloy 625 sheet
What are Inconel 600 & 625 Plate?
Inconel is a trade name; the grades are UNS N06600 (alloy 600) and UNS N06625 (alloy 625). Alloy 600 is a nickel-chromium-iron alloy with resistance to oxidation, carburisation and chloride stress-corrosion cracking, used for furnace parts, heat-treatment equipment and chemical processing. Alloy 625 adds molybdenum and niobium, giving high strength from solid-solution hardening and resistance to pitting, crevice corrosion and seawater. It is used in offshore, flue gas, chemical and aerospace service. Plate for 600 is covered by ASTM B168, and for 625 by ASTM B443 (Grade 1 annealed, Grade 2 solution annealed).
Key features
- Stockist and supplier — sourced from nickel alloy mills; Teshi does not manufacture plate
- UNS N06600 to ASTM B168; UNS N06625 to ASTM B443
- Alloy 625 Grade 1 (annealed) and Grade 2 (solution annealed)
- High-temperature strength and oxidation resistance
- Plate, sheet and strip; other sizes supplied against order
- Matching nickel alloy flanges manufactured by Teshi against order
Specification
| Supply | Stockist & supplier — Teshi Group, India |
|---|---|
| Standards | ASTM B168 / ASME SB-168 (N06600); ASTM B443 / ASME SB-443 (N06625) |
| Grades | UNS N06600 (alloy 600), UNS N06625 (alloy 625 Grade 1 and Grade 2) |
| Product forms | Plate 3/16 in (4.76 mm) and thicker; sheet and strip in thinner gauges; other sizes supplied against order |
| Condition | Annealed; 625 Grade 2 solution annealed |
| Other plate grades stocked | Carbon / boiler: IS 2062 E250–E450, ASTM A36, A516 Gr 60 / 70, A537; Cr-Mo: ASTM A387 Gr 11, 12, 22, 91; stainless: ASTM A240 304 / 304L / 304H, 309S, 310S, 316 / 316L / 316H / 316Ti, 317L, 321 / 321H, 347 / 347H, 410, 430, 904L, 254 SMO; duplex S31803 / S32205; super duplex S32750 / S32760; nickel: Monel 400 (B127), Inconel 600 (B168), Inconel 625 (B443), Incoloy 800 / 800H / 800HT (B409), Incoloy 825 (B424), Hastelloy C276 / C22 (B575), Hastelloy B2 / B3 (B333), Alloy 20 (B463), Nickel 200 / 201 (B162); titanium Gr 1, 2, 5, 7, 12 (B265); Cu-Ni 90/10, 70/30 (B171) |
| Testing | Chemical and tensile tests per the standard |
| Documents | Mill test certificate to EN 10204 3.1; EN 10204 3.2 / third-party inspection when the order specifies |
Applications
- Furnace and heat-treatment components
- Offshore and seawater equipment
- Flue gas scrubbers and stacks
- Chemical process vessels
- Nuclear and aerospace parts
Chemical composition — alloy 600 (ASTM B168) and 625 (ASTM B443)
| UNS | Ni | Cr | Fe | Mo | Nb+Ta | C | Mn | Si | S | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| N06600 | 72.0 min | 14.0–17.0 | 6.0–10.0 | — | — | 0.15 | 1.0 | 0.5 | 0.015 | Cu 0.5 |
| N06625 | 58.0 min | 20.0–23.0 | 5.0 | 8.0–10.0 | 3.15–4.15 | 0.10 | 0.50 | 0.50 | 0.015 | Al 0.40, Ti 0.40, P 0.015, Co 1.0 |
Maximum unless a range or minimum is shown; % by weight.
Mechanical properties
| UNS / condition | Tensile, min (MPa) | Yield 0.2%, min (MPa) | Elongation, min (%) |
|---|---|---|---|
| N06600 hot-rolled plate, annealed | 550 | 240 | 30 |
| N06625 plate, Grade 1 annealed | 827 | 414 | 30 |
Per ASTM B168 and ASTM B443.
Technical data sheets
Dimensions & weights
FAQ
Inconel 600 & 625 Plate: common questions
Is Inconel a grade name?
Inconel is a trade name. Order plate by UNS number and standard: UNS N06600 to ASTM B168, or UNS N06625 to ASTM B443. Several mills produce these alloys under their own names.
What is the difference between alloy 600 and 625?
625 contains 8–10% molybdenum and 3.15–4.15% niobium, which give much higher strength and pitting resistance. 600 has no molybdenum and is used mainly for heat and oxidation resistance.
What are Grade 1 and Grade 2 in ASTM B443?
Grade 1 is annealed, with higher room-temperature strength. Grade 2 is solution annealed and is used for high-temperature creep service. Specify the grade clearly in the enquiry.
Does Teshi manufacture Inconel plate?
No. Teshi Group is a stockist and supplier of Inconel 600 and 625 Plate, sourced from established mills and supplied with the original mill test certificate. Teshi is an OEM manufacturer of flanges, fittings, fasteners, valves and custom fabrications, which can be ordered with it.
Need a size or grade not listed here?
We source against your specification from approved mills, with mill test certificates and inspection before dispatch.
Send us your specificationTraceability
From mill heat to your site
- 01
Approved mill material
Received against the mill certificate; heat number registered.
- 02
Forging & machining
Heat number carried through every stage in our Indian works.
- 03
PMI, dimensional & NDT
Every lot inspected to the governing standard; TPI witness on request.
- 04
Stamped & certified dispatch
Hard-stamped pieces with EN 10204 3.1 / 3.2 certificates.
Quick RFQ
Quote for Inconel 600 & 625 Plate in 24–48 hours
More steel plates
All steel platesIncoloy 800/800H & 825 Plate
ASTM B409 · ASTM B424
View productSteel PlatesMonel 400 & K500 Plate
ASTM B127 · ASME SB-127
View productSteel PlatesAlloy 20 Plate
ASTM B463 · ASME SB-463
View productSteel PlatesTitanium Grade 2 Plate
ASTM B265 · ASME SB-265
View productSteel PlatesCorten / Weathering Steel Plate
ASTM A588 · ASTM A242
View productSteel PlatesChequered Plate
IS 3502 · ASTM A786
View product