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Inconel 718 Bar & Pipe For Hydrogen Car Parts

Baoji City Changsheng Titanium Co.,Ltd

Inconel 718 Bar & Pipe For Hydrogen Car Parts

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Brand Name : Changsheng

Model Number : CS--CT

Certification : ISO9000;2008

Place of Origin : Baoji (China )

MOQ : 50 kg

Price : USD 25-45/kg

Payment Terms : T/T, D/P, D/A, L/C, Western Union, MoneyGram

Supply Ability : 10tons per month

Delivery Time : within 7-15days after receipt your prepayment

Packaging Details : plastic bag inside,wooden box outside

surface : polished

Certificates : SGS; ISO9001:2008; BV; TUV certificates

corporation : trading and manufacture

Key Words : Inconel 718 Bar & Pipe

application : Auto turbocharger

drawing : accept customized

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Specification:

MaterialMaterial TypeSpecRequired quantityAnnual usage(kg)
Inconel 718BarØ7.3 / 3000mm9961,024
Inconel 718Seamless PipeØ25 x Ø19 / 3000mm2071,056
Inconel 718BarØ21 / 3000mm1,0749,134

Heat Treatment:

Typical heat treatment should be as described below:

Heat to 1325°F ± 15°F (720°C ± 8°C) and hold for 8 hours ± 30 minutes.

Cool at 100°F ± 15°F (55°C ± 8°C) per hour down to 1150°F ± 15°F (620°C ± 8°C) and hold for 8 hours ± 30 minutes, then air cool.


Chemical Requirements

The chemical composition of supplied to this specification shall conform to the following:

ElementMin (%)Max (%)
Carbon0.020.08
Silicon---0.35
Manganese---0.35
Chromium17.0021.00
Cobalt---1.00
Molybdenum2.803.30
Titanium0.601.20
Aluminium0.20.8
Niobium + Tantalum4.755.50
Phosphorus---0.015
Sulphur---0.015
Copper---0.30
OET (each)---0.50
Nickel50.0055.00
IronBalance

Technical Requirements

Mechanical Properties

Room Temperature Tensile Requirement

The finished sheet or bar or products made from them shall meet the following minimum room temperature mechanical properties when tested according to QCI-9310-239 as shown in the table below:

PropertiesSheet Stock/Product

Bar Stock/Product (Longitudinal -

direction)


Tensile Strength180 KSI (1241 MPa)185 KSI(1276 MPa)
Yield Strength (0.2%)150 KSI (1034 MPa)150 KSI (1034 MPa)
Elongation in 2 in. 50mm) - or 4D12%12%

Elevated Temperature Tensile Requirement

When required on the engineering drawing, the material shall conform to the following minimum mechanical properties when tested at 1200°F (649°C).


StockNominal ThicknessTensile Strength0.2% Yield Strength

% elongation in.

2” or 4D

Sheet<0.025” (0.62mm)140 KSI (965 MPa)115 KSI (793 MPa)5
Sheet>0.025” (0.62mm)145 KSI (1000 MPa)129 KSI (827 MPa)5
Bar-----------145 KSI (1000 MPa)125 KSI (862 MPa)12
(Longitudinal direction)

Stress Rupture Properties at 1200oF

When required on the engineering drawing, a tensile test specimen, maintained at 1200°F ± 3ºF (649°C ± 2ºC) while a load sufficient to produce the initial axial stress shown below shall not rupture in less than 23 hours. The test shall be continued to rupture and may be step loaded in 5 KSI 34.5 MPa) increments. Elongation after rupture shall not be less than indicated below.

StockThickness/Dia.

Initial Axial Stress

KSI (MPa)

Elongation % in 4D


Sheet<0.015” (0.38mm)95 (655)---
Sheet

0.015” to 0.025”

(0.38 to 0.62mm)

95 (655)4
Sheet> 0.025” (0.62mm)100 (690)4
BarUp to 5” (127mm)100 (690)4

Hardness

The hardness of the fully heat treated product unless otherwise specified in the engineering drawing shall be a minimum of 36 HRC or equivalent, but the product shall not be rejected on the basis of hardness provided that the requirements of Section 7.1 are met.


Microstructure

The matrix shall be austenitic with fine discontinuous precipitates of carbides at the grain boundaries and dispersed titanium carbonitrides. Metallographic examination of cross- sectioned part shall disclose no alloy depleted surface layer, intergranular attack, or other detrimental surface conditions greater than 0.015 mm for pieces up to 1.50 mm in thickness, or greater than 0.025 mm for pieces over 1.50 mm in thickness. Each specimen shall be evaluated at 200x & 500x magnification.


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