DIN 1.4876 is the German equivalent of Incoloy 800 (UNS N08800) and corresponds to the designation X10NiCrAlTi32-21.

Incoloy 800 Round Bar Supplier, ASTM B408 UNS N08800 Bar

Name: Incoloy 800 Round Bar
Brand: Solitaire Overseas
SKU: UNS N08800
Availability: InStock

Incoloy 800 Round Bar Manufacturer, Supplier & Exporter

Solitaire Overseas manufactures and exports Incoloy 800 Round Bars (UNS N08800, DIN 1.4876) to ASTM B408 / ASME SB408 and related standards. Alloy 800 is an iron-nickel-chromium alloy created to serve in high-temperature applications in oxidation, carburisation, and sulphidation environments. Its additions of controlled carbon, aluminium and titanium stabilize the microstructure, and resist sensitisation and therefore can be used in long service at temperatures ranging between 600 °C to 900 °C.

As a leading Incoloy 800 round bar supplier, we provide bars in diameters from 3 mm to 800 mm with EN 10204 3.1 mill test certificates as standard. The Incoloy 800H and 800HT variants (ASTM B408 / SB408) are also available for applications requiring enhanced creep resistance above 900 °C.

Specifications Chemical Composition Mechanical Properties Equivalent Grades Forms of Incoloy 800 Bar Surface Finish HS Code Bright Bar Sizes Properties of Incoloy 800 Bar Conditions Tolerances Precision Tolerances Turned Tolerance Benefits NDT Testing Applications 800 vs 800H vs 800HT Related Products FAQs

Incoloy 800 Round Bar — Specifications

Parameter	Details
Grade	Incoloy 800 / Alloy 800
UNS No.	N08800
DIN No.	1.4876
ASTM Standard	ASTM B408 / ASME SB408
Related Variants	Incoloy 800H (N08810) \| Incoloy 800HT (N08811)
Diameter (Round Bar)	3 mm – 800 mm
Hex Bar (A/F)	4 mm – 100 mm
Flat Bar Width	10 mm – 500 mm
Length	100 mm – 6000 mm
Surface Finish	Hot Rolled \| Cold Drawn \| Bright Annealed \| Peeled \| Forged
Certificate	EN 10204 3.1 (standard) \| 3.2 on request

Incoloy 800 Chemical Composition Comparison

Element	Alloy 800 (N08800)	Alloy 800H (N08810)	Alloy 800HT (N08811)
Ni	30.0–35.0%	30.0–35.0%	30.0–35.0%
Cr	19.0–23.0%	19.0–23.0%	19.0–23.0%
Fe	Balance	Balance	Balance
Al	0.15–0.60%	0.15–0.60%	0.25–0.60%
Ti	0.15–0.60%	0.15–0.60%	0.25–0.60%
Al+Ti	0.30–1.20%	0.30–1.20%	0.85–1.20%
C	0.10 max	0.05–0.10	0.06–0.10

Incoloy 800 Round Bar Mechanical Properties (Annealed)

Property	Alloy 800	Alloy 800H
Tensile Strength	517 MPa min (75 ksi)	448 MPa min (65 ksi)
Yield Strength (0.2%)	207 MPa min (30 ksi)	172 MPa min (25 ksi)
Elongation	30% min	30% min
Hardness	≤ 183 HB	≤ 160 HB
Density	7.94 g/cm³	7.94 g/cm³
Melting Range	1357–1385 °C	1357–1385 °C
Max. Continuous Service	~900 °C (800HT up to 1000 °C in creep-resistant applications)
Modulus of Elasticity	196 GPa	196 GPa

Incoloy 800 Equivalent International Standards

Standard	Designation
UNS	N08800
DIN / Werkstoff Nr.	1.4876
ASME	SB408
BS	3072 NA 15
AFNOR	Z5NiCT32-21
JIS	NCF800
ISO	NW 8800

Forms of Incoloy 800 Round Bar in Stock

Alloy 800 Square Bar
Incoloy Alloy 800 Polished Bar
Alloy Incoloy 800 Rectangle Bar
Werkstoff NR. 1.4876 Cold Drawn Bar
DIN 1.4876 Bright Bar
WNR 1.4876 Forged Bar

ASTM B408 UNS N08800 Flat Bars Finishes

Code	Finish
SRE	Slit-rolled edge
P	Polished
RT	Rough-turned/peeled
HRAP	Hot rolled pickled/annealed
HF	Hot finished
PR	Peeled Reeled
BD	Bright drawn
CD	Cold drawn
P&T	Peeled turned
CF	Cold finished
CG	Centreless ground
ST	Smooth turned

Incoloy 800 Round Bar HS Code

Product Description	HS Code
Incoloy 800 round bar	75051220

Alloy 800 Bright Bar Sizes Chart

Type	Size (mm)	Size (inch)	Tolerance
Ground & Peeled	20 - 50	3/4 - 2.00″	h10, h9, h11
Polished & Peeled	40 - 150	1.50 - 6.00″	h11
Polish & Cold Drawn	3 - 75	1/8 - 3.00″	h10, h9, h8, h11
Ground & Cold Drawn	10 - 75	5/16 - 2.50″	h10, h9, h8, h11

Properties of Incoloy 800 Alloy

Incoloy 800 Cold Forming

Cold forming of Incoloy 800 is performed using procedures similar to those used for Incoloy Alloy 600 and stainless steel grades. The work-hardening rate for Incoloy 800 is higher than mild steel but lower than that of Type 304 stainless steel. The work-hardening rate is also comparable to that of Incoloy 600.

Incoloy 800 Hot Forming

Hot forming is carried out in the temperature range of 1600 to 2200°F (870 to 1200°C). Heavy forging should be performed between 1850°F and 2200°F (1010°C to 1200°C). Forming between 1200 and 1600°F (650–870°C) should be avoided as it may result in cracking.

Cooling after hot forming is not critical for thermal cracking. However, the alloy is susceptible to carbide precipitation in the 1000–1400°F (540–760°C) range and should be cooled rapidly through this range to avoid sensitisation.

Incoloy 800 Machining

Incoloy 800 can be machined using standard methods. Turning operations can be performed with good surface finish and tool life using coated carbide tools. High-speed steel tools are also suitable for interrupted cutting operations.

Typical cutting speeds:

Carbide tools: 110–190 sfpm (33.5–57.9 m/min)

HSS tools: 35–95 sfpm (10.7–29.0 m/min)

Feed rate: 0.008–0.035 ipr (0.20–0.89 mm/rev)

Incoloy 800 Welding

Incoloy 800 offers good weldability across standard welding processes. The material must be clean, and proper joint design should be followed.

Recommended consumables:

Shielded metal arc welding: Inco-Weld A electrode

GTAW / GMAW / SAW: Filler Metal 82

Submerged arc: Incoflux 4 flux

These are suitable for most similar and dissimilar welding applications involving Incoloy 800.

Incoloy 800 Heat Treatment

All material must be clean prior to heating. Contaminants such as oil, grease, or paint should be removed. Heating should be carried out in a low-sulfur atmosphere.

Due to chromium oxidation, Incoloy 800 cannot be bright annealed in standard furnaces. Under controlled conditions, bright annealing can be performed in dry hydrogen atmosphere with strict dew point control.

Nickel 800 Rectangular Bar Conditions

Code	Condition
H/T	Hardened & tempered
ANN	Annealed
PH	Precipitation hardened

Leading Incoloy 800 round bar supplier and stockist in India, offering products in a wide range of sizes and finishes suitable for high-temperature and corrosive environments.

Incoloy 800 Bar Tolerance ISO “H” Series (mm)

Diameter (mm)	H5	H6	H7	H8	H9	H10	H11	H12
~ – 3	+0.004/0	+0.006/0	+0.01/0	+0.014/0	+0.025/0	+0.04/0	+0.06/0	+0.1/0
Over 3 – 6	+0.005/0	+0.008/0	+0.012/0	+0.018/0	+0.03/0	+0.048/0	+0.075/0	+0.12/0
Over 6 – 10	+0.006/0	+0.009/0	+0.015/0	+0.022/0	+0.036/0	+0.058/0	+0.09/0	+0.15/0
Over 10 – 18	+0.008/0	+0.011/0	+0.018/0	+0.027/0	+0.043/0	+0.07/0	+0.11/0	+0.18/0
Over 18 – 30	+0.009/0	+0.013/0	+0.021/0	+0.033/0	+0.052/0	+0.084/0	+0.13/0	+0.21/0
Over 30 – 50	+0.011/0	+0.016/0	+0.025/0	+0.039/0	+0.062/0	+0.1/0	+0.16/0	+0.25/0
Over 50 – 80	+0.013/0	+0.019/0	+0.03/0	+0.046/0	+0.074/0	+0.12/0	+0.19/0	+0.3/0
Over 80 – 120	+0.015/0	+0.022/0	+0.035/0	+0.054/0	+0.087/0	+0.14/0	+0.22/0	+0.35/0
Over 120 – 180	+0.018/0	+0.025/0	+0.04/0	+0.063/0	+0.1/0	+0.16/0	+0.25/0	+0.4/0
Over 180 – 250	+0.02/0	+0.029/0	+0.046/0	+0.072/0	+0.115/0	+0.185/0	+0.29/0	+0.46/0

DIN 1.4876 Rounds Precision Tolerances

Size (mm)	Section	Class A (mm)	Class B (mm)	Class C (mm)
≥6, <75	Round	0.05	0.025	0.013

Inconel 800 Bar Turned Tolerance

Size (mm)	Permitted Variation (mm)
≥6 ≤18	+0 to −0.070
>18 ≤30	+0 to −0.085
>30 ≤50	+0 to −0.100
>50 ≤80	+0 to −0.120
>80 ≤120	+0 to −0.140
>120 ≤180	+0 to −0.160
>180 ≤250	+0 to −0.185
>250 ≤315	+0 to −0.210
>315 ≤400	+0 to −0.230
>400	+0 to −0.250

Trusted Incoloy 800 bar supplier, offering material with superior resistance to oxidation, carburisation, and corrosion in high-temperature environments.

Benefits of Incoloy 800 Round Bars

High strength at elevated temperatures
Excellent heat and oxidation resistance
Good machinability
High resistance to chemical corrosion
Good fatigue strength

NDT Tested Alloy 800 Rod Manufacturer in India

Chemical testing
NDT Testing
Ultrasonic Testing
Liquid Penetrant Testing
PMI Testing

Applications of Incoloy 800 Round Bar

Petrochemical: steam reformer outlet manifolds, catalyst tube hangers, pigtail hangers
Power generation: heat recovery steam generator (HRSG) tube supports, superheater hangers
Ethylene production: cracker tube hangers, quench system supports
Furnace hardware: basket hangers, radiant tube supports, belt furnace components
Industrial heating: recuperator components, thermocouple sheaths
Chemical processing: heat exchanger baffles in acid service
Oil & Gas: downhole electrical cable conduit, well completion hardware

Choosing Between Alloy 800, 800H and 800HT

The three variants of Alloy 800 differ primarily in carbon content and Al+Ti requirements, which govern creep strength at the highest temperatures:

Alloy 800: general-purpose; suits temperatures up to ~650 °C where stress-rupture properties are not critical
Alloy 800H: higher carbon (0.05–0.10%) and coarser grain size for improved stress-rupture life above 650 °C
Alloy 800HT: enhanced Al+Ti control (0.85–1.20%) on top of 800H composition for maximum creep resistance above 900 °C; the preferred grade for ethylene cracker and steam reformer tube hangers

Related Incoloy 800 Products

FAQ — Incoloy 800 Round Bar

What ASTM standard covers Incoloy 800 round bars?

Incoloy 800 round bars are manufactured as per ASTM B408 / ASME SB408 (UNS N08800). Variants such as Incoloy 800H (N08810) and 800HT (N08811) are also covered under similar specifications depending on application requirements.

What is the maximum service temperature for Incoloy 800?

Incoloy 800 is suitable for continuous service up to approximately 900 °C. Incoloy 800HT can be used up to ~1000 °C in creep-resistant applications such as ethylene crackers and steam reformers.

What is DIN 1.4876?

DIN 1.4876 is the German equivalent of Incoloy 800 (UNS N08800) and corresponds to X10NiCrAlTi32-21.

How does Incoloy 800 differ from stainless steel 310?

Incoloy 800 contains 30–35% nickel, compared to 19–22% in SS 310, providing better carburisation resistance, improved stress-rupture strength, and enhanced resistance to sensitisation in high-temperature environments.