Inconel vs Stainless Steel: Which is Better?

Difference Between Inconel and Stainless Steel

Inconel Vs Stainless Steel

What is Inconel?, what is Inconel material?, what is Inconel metal?, what is Inconel metal used for?, what is Inconel made of?

In the realm of metallic wonders, Inconel emerges as a masterpiece crafted by the ingenious minds at Kalpataru Piping Solutions. Its essence lies in a harmonious fusion of nickel, chromium, and molybdenum, resulting in a symphony of strength and resilience. Blessed with an inherent resistance to the relentless forces of corrosion and pitting, Inconel manifests itself in various splendid alloys, each with its own distinct character.

Meanwhile, stainless steel, an epitome of metallurgical elegance, weaves its tale with a captivating blend of carbon, manganese, phosphorus, sulfur, silicone, chromium, and nickel. A symphony of elements that ensures its integrity and endurance. Both Inconel and stainless steel embrace the wisdom of a numbering system, unveiling a plethora of alloys and strengths to meet diverse demands.

While their destinies converge in the realm of silver finishes, their journeys diverge when it comes to texture. The artistic strokes of craftsmanship give rise to two captivating worlds: one graced with a subtle matte surface, exuding understated elegance, and the other, a resplendent expanse reflecting a luminous shine. Inconel and stainless steel, two distinct entities sharing a common realm, yet offering a distinctive aesthetic experience to those who embrace their captivating presence.

Cost or Price of Inconel & stainless steel

When it comes to the realm of cost and price, a clear distinction arises between the noble contenders, Inconel and Stainless Steel. Standing tall on the scale of expenses, Inconel takes the lead, demanding a higher investment compared to its stainless steel counterpart. As an illustration, let us consider the realm of fast cars, where the exhaust valves crafted from Inconel carry a price tag that surpasses stainless steel by a handsome $150, as documented at the time of publication.

The distinguished supplier of Inconel, Kalpataru Piping Solutions, unveils a splendid array of offerings, catering to the discerning needs of customers. This remarkable alloy is made available in an assortment of forms, including flat sheets, pipes, tubes, flat bars, wires, and an array of captivating shapes, ensuring a comprehensive solution for diverse applications.

Within this exquisite realm, Special Metals emerges as a maestro, orchestrating the production of 25 distinctive qualities of Inconel. Each product within this magnificent lineup possesses its own unique characteristics, bestowing upon it a distinct personality and performance attributes. Consequently, the diversity in properties among these Inconel variants also translates into a variation in pricing, ensuring a range of options to suit the specific requirements and budgets of customers.

Applications of Inconel

Inconel alloys find wide-ranging applications across diverse industries. Their heat and corrosion resistance make them ideal for gas turbine blades, exhaust systems, and combustion chambers in aerospace applications. In the oil and gas industry, Inconel is used for wellhead components, downhole tools, and offshore drilling equipment due to its ability to withstand harsh conditions. It also finds applications in chemical processing, nuclear power plants, and marine environments.

Advantages of Inconel

The advantages of Inconel go beyond its exceptional strength. These alloys exhibit excellent oxidation resistance, making them suitable for high-temperature applications. Inconel also offers superior resistance to corrosion, even in aggressive environments such as seawater and acidic solutions. Furthermore, its exceptional mechanical properties ensure dimensional stability and structural integrity under extreme stress and strain.

Inconel Composition

Inconel	Element (% by mass)
Ni	Cr	Fe	Mo	Nb	Co	Mn	Cu	Al	Ti	Si	C	S	P	B
600	72.0	14.0–17.0	6.0–10.0				1.0	0.5			0.5	0.15	0.015
617	44.2–56.0	20.0–24.0	3.0	8.0–10.0		10.0–15.0	0.5	0.5	0.8–1.5	0.6	0.5	0.15	0.015	0.015	0.006
625	58.0	20.0–23.0	5.0	8.0–10.0	3.15–4.15	1.0	0.5		0.4	0.4	0.5	0.1	0.015	0.015
690	59.5	30	9.2				0.35	0.01	0.02		0.35	0.019	0.003
718	50.0–55.0	17.0–21.0	balance	2.8–3.3	4.75–5.5	1.0	0.35	0.2–0.8	0.65–1.15	0.3	0.35	0.08	0.015	0.015	0.006
X-750	70.0	14.0–17.0	5.0–9.0		0.7–1.2	1.0	1.0	0.5	0.4–1.0	2.25–2.75	0.5	0.08	0.01

Inconel alloys

Alloys of inconel include:

• Inconel 600: Solid solution strengthened

• Inconel 601

• Inconel 625: Acid resistant, good weldability. The LCF version is typically used in bellows.

• Inconel 690: Low cobalt content for nuclear applications, and low resistivity

• Inconel 713C: Precipitation hardenable nickel-chromium base cast alloy

• Inconel 718: Gamma double prime strengthened with good weldability

• Inconel 751: Increased aluminium content for improved rupture strength in the 1600 °F range

• Inconel 792: Increased aluminium content for improved high temperature corrosion properties, used especially in gas turbines

• Inconel 939: Gamma prime strengthened to increase weldability

Inconel Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	GOST	AFNOR	JIS	BS	EN	OR
Inconel 600	2.4816	N06600	МНЖМц 28-2,5-1,5	NC15FE11M	NCF 600	NA 13	NiCr15Fe	ЭИ868
Inconel 601	2.4851	N06601	XH60BT	NC23FeA	NCF 601	NA 49	NiCr23Fe	ЭИ868
Inconel 617	2.4663	N06617
Inconel 625	2.4856	N06625	ХН75МБТЮ	NC22DNB4M	NCF 625	NA 21	NiCr22Mo9Nb	ЭИ602
Inconel 690	2.4642	N06690
Inconel 718	2.4668	N07718
Inconel 725	–	N07725
Inconel X-750	2.4669	N07750

Inconel Melting Point, Density and Tensile Strength

	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
600	8.47 g/cm3	1413 °C (2580 °F)	Psi – 95,000 , MPa – 655	Psi – 45,000 , MPa – 310	40 %
601	8.1 g/cm3	1411 °C (2571 °F)	Psi – 80,000 , MPa – 550	Psi – 30,000 , MPa – 205	30 %
617	8.3g/cm³	1363°C	≥ 485 MPa	≥ 275 MPa	25 %
625	8.4 g/cm3	1350 °C (2460 °F)	Psi – 135,000 , MPa – 930	Psi – 75,000 , MPa – 517	42.5 %
690	8.3g/cm³	1363°C	≥ 485 MPa	≥ 275 MPa	25 %
718	8.2 g/cm3	1350 °C (2460 °F)	Psi – 135,000 , MPa – 930	Psi – 70,000 , MPa – 482	45 %
725	8.31 g/cm3	1271°C-1343 °C	1137 MPa	827 MPa	20 %
X-750	8.28 g/cm3	1430°C	1267 MPa	868 MPa	25 %

Stainless Steel

what is stainless steel?, what is stainless steel made of?, what is 304 stainless steel?, what is austenitic stainless steel?, what is stainless steel used for?, what is duplex stainless steel?

Stainless steel, on the other hand, is a versatile alloy primarily consisting of iron, chromium, and other elements like nickel and molybdenum. Stainless steel alloys are prized for their remarkable corrosion resistance and mechanical properties. They find extensive usage in industries such as construction, automotive, and medical equipment manufacturing.

In the realm of grade 304 Stainless Steel, commendable resistance to oxidation damage awaits, standing strong against the scorching temperatures of up to 1,697°F (952°C). However, as the thermometer climbs to 2,000°F, a noticeable decline in both corrosion resistance and tensile strength becomes evident, making this alloy vulnerable to the unforgiving forces of heat.

Moving forward, we encounter the illustrious grade 316 Stainless Steel, renowned for its enhanced resistance to chemical corrosion at ambient temperatures when compared to its grade 304 counterpart. However, when it comes to withstanding high temperatures, 316 SS falls slightly short, exhibiting a lower threshold than 304 SS. At 2,000°F, this alloy experiences a further reduction in tensile strength, showcasing its susceptibility to relentless heat.

Our expedition leads us to the remarkable grade 330 Stainless Steel, meticulously crafted to combat the formidable challenges posed by scaling and oxidation at elevated temperatures. This alloy, fortified by a generous infusion of chromium and nickel, emerges as a stalwart guardian, defying the trials of prolonged exposure to temperatures reaching up to 1,900°F (1037°C). Although some may suggest its utilization at 2,000°F, it is often prudent to turn to the distinguished Inconel alloy for superior performance in such extreme conditions.

As we conclude our voyage through the grades of stainless steel, we witness the intricate dance between their compositions and their ability to endure the fiery caress of heat. It is through this understanding that we can make informed decisions about the ideal alloy to employ in each unique thermal encounter.

Applications of Stainless Steel

Stainless steel is widely used in various industries, thanks to its remarkable characteristics. In the construction sector, it finds applications in architectural structures, roofing, and bridges due to its strength and durability. In the medical field, stainless steel is utilized for surgical instruments, implants, and medical equipment due to its biocompatibility and ease of sterilization. Additionally, it is extensively employed in the food and beverage industry, transportation, and automotive manufacturing.

Advantages of Stainless Steel

Stainless steel offers numerous advantages that contribute to its popularity. It boasts exceptional corrosion resistance, ensuring longevity and minimal maintenance requirements. Stainless steel is also heat resistant, making it suitable for high-temperature applications. Furthermore, its hygienic properties, aesthetic appeal, and recyclability make it an environmentally friendly choice.

Stainless Steel Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 304	1.4301	S30400	SUS 304	304S31	08Х18Н10	Z7CN18‐09	X5CrNi18-10
SS 304L	1.4306/1.4307	S30403	SUS 304L	304S11	03Х18Н11	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11
SS 310	1.4845	S31000	–	–	–	–	–
SS 310S	1.4845	S31008	SUS310S	–	20Ch23N18	–	X8CrNi25-21
SS 316	1.4401 / 1.4436	S31600	SUS 316	316S31 / 316S33	–	Z7CND17‐11‐02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L	1.4404 / 1.4435	S31603	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐032	X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 317	1.4449	S31700	SUS 317	–	–	–	X6CrNiMo19-13-4
SS 317L	1.4438	S31703	SUS 317L	–	–	–	X2CrNiMo18154
SS 321	1.4541	S32100	SUS 321	–	08Ch18N10T	–	X6CrNiTi18-10
SS 321H	1.4541	S32109	SUS 321H	–	–	–	X6CrNiTi18-10
SS 347	1.4550	S34700	SUS 347	–	08Ch18N12B	–	X6CrNiNb18-10
SS 347H	1.4961	S34709	SUS 347H	–	–	–	X7CrNiNb18-10
SS 446	1.4762	S44600	–	–	–	–	–

Stainless Steel Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 304	0.08 max	2 max	0.75 max	0.040 max	0.030 max	18 – 20	–	8 – 11	–
SS 304L	0.03 max	2 max	0.75 max	0.045 max	0.030 max	18 – 20	–	8 – 12	0.10 max
SS 310	0.25 max	2 max	1.50 max	0.045 max	0.030 max	24 – 26	–	19 – 22	–
SS 310S	0.08 max	2 max	1.50 max	0.045 max	0.030 max	24 – 26	–	19 – 22	–
SS 316	0.08 max	2 max	0.75 max	0.045 max	0.030 max	16 – 18	2 – 3	10 – 14	0.1 max
SS 316L	0.3 max	2 max	0.75 max	0.045 max	0.030 max	16 – 18	2 – 3	10 – 14	0.10 max
SS 317	008 max	2 max	1 max	0.040 max	0.03 max	18 – 20	3 – 4	11 – 14	0.10 max
SS 317L	0.035 max	2 max	1 max	0.040 max	0.03 max	18 – 20	3 – 4	11 – 15	–
SS 321	0.08 max	2 max	0.75 max	0.045 max	0.03 max	17 – 19	5xC min0.60% max	9 – 12	0.10 max
SS 321H	0.04 – 0.10 max	2 max	0.75 max	0.045 max	0.03 max	17 – 19	4xC min0.60% max	9 – 12	0.10 max
SS 347	0.08 max	2 max	0.75 max	0.045 max	0.03 max	17 – 20	10xC min1.00 max	9 – 13	62.74
SS 347H	0.04 – 0.10	2 max	0.75 max	0.045 max	0.03 max	17 – 20	8xC min1.00 max	9 – 13	62.74
SS 446	0.2 max	1.5 max	0.75 max	0.040 max	0.03 max	23 – 30	0.10 – 0.25	0.50 max	Balance

Stainless Steel Melting Point, Density and Tensile Strength

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 304	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 304L	8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %
SS 310	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 310S	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 316	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 316L	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %
SS 317	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 317L	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 321	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 321H	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 347	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %
SS 347H	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %
SS 446	7.5 g/cm3	1510 °C (2750 °F)	Psi – 75,000 , MPa – 485	Psi – 40,000 , MPa – 275	20 %

So, is Inconel Stronger Than Steel?

Inconel vs stainless steel strength

Here’s a quick comparison of Inconel vs stainless steel to help answer the question of which is stronger:

Alloy	Inconel 625®	304 Stainless Steel
Tensile Strength	103-160 ksi (714-1,103 MPa)	73.2 ksi (505 MPa)
Melting Point	2,350-2,460°F (1,290-1,350°C)	2,550-2,650˚F (1,400-1,455˚C)
Operating Temperature	1,800°F (982°C)	1,697°F (952°C)
Corrosion Resistance	Resistant to oxalic acid and high-temperature oxidation	Excellent all-around resistance—though it’s vulnerable to chlorides and high-temp oxidation

Within the realm of metallurgical prowess, the distinguished Inconel 625 emerges as a formidable contender, surpassing grade 304 stainless steel in the domain of tensile strength. What sets Inconel 625 apart is not just its initial strength, but its remarkable ability to retain that strength even when subjected to elevated operating temperatures.

While it is true that the melting point of this particular variant of Inconel is lower compared to 304 stainless steel, its superiority shines through when it comes to operating temperature limits. Inconel, with its inherent strength, outshines stainless steel in high-temperature environments, showcasing a remarkable resistance to oxidation and scaling.

However, it is worth noting that stainless steel possesses a unique advantage in its ability to withstand specific chemicals, such as the formidable sulfuric acid. In such scenarios, stainless steel may outperform Inconel, making the choice between these two magnificent metal alloys contingent upon the specific application at hand.

Inconel alloys find their true calling in heat treating applications and various processes demanding unwavering performance in high-temperature conditions. On the other hand, stainless steel alloys carve their niche in sterile manufacturing or medical domains, as well as any arena where corrosive substances play a pivotal role.

In the end, the choice between Inconel and stainless steel transcends a simple comparison of strength and resistance—it becomes a meticulous consideration of the unique demands and intricacies of the application that beckons their implementation.

Need help choosing the right metal alloy for your needs? Reach out to the Kalpataru Piping Solutions leading Metal, Copper, Steel Supplier today for more information about Inconel, stainless steel, and other materials. Contact Now.

Inconel vs stainless steel weight

In the realm of materials, the enchanting Inconel alloy gracefully boasts a feather-light weight, setting it apart from its stainless steel counterpart. While the visual allure of stainless steel and Inconel may be strikingly similar, the discernible distinction in weight effortlessly reveals itself.

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