SUS316H stainless steel standard, mechanical properties

what is SUS316H stainless steel?

SUS316H stainless steel is a popular high-carbon grade of 316 stainless steel, where "SUS" represents the Japanese Industrial Standard (JIS), and "H" indicates its high carbon content (0.04-0.08%), ensuring its performance at high temperatures, unlike the low-carbon 316L stainless steel. Its excellent strength and creep resistance at high temperatures make it an ideal choice for pressure vessels and structural components operating above 500°C.

What is the standards for SUS316H stainless steel?

SUS316H is a high-carbon variant of 316 stainless steel, defined by standards like ASTM A312/A240 (for pipes/plates) and ASME SA312/SA240, offering improved high-temperature strength, with key specs including higher carbon (max 0.08%), Molybdenum (2-3%), and specific tensile/yield strength requirements (e.g., Tensile ≥ 515 MPa, Yield ≥ 205 MPa at room temp) for elevated service, differentiating it from 316L.

 

316H Austenitic Stainless Steel Equivalent Grades

ASTM/AISI	WERKSTOFF NR.	UNS	GOST	GB	JIS	DIN	EN	OR
Alloy 316H	1.4919	S31609	/	/	SUS316H	/	1.4919	–

 

316H Chemical composition

316H is high carbon chromium stainless steel. It contains 0.04- 0.10% carbon with chromium, nickel, and molybdenum as alloying agents.

Grade	Carbon	Cr	Ni	Mo	Mn	Si	P	S
316H	0.04-0.10%	16-18%	10-14%	2.0%	2.0%	0.75%	0.045%	0.030%

 

316H Austenitic Stainless Steel Mechanical Properties

Density	Melting Range	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.00 g/cm3	1400°C	≥515Mpa	≥205Mpa	≥40%

 

Stainless Steel 316H Temperature Limit

Material	Temperature Limit
316H Stainless Steel	1149-1260°C.

 

316H Price Per KG

Material	Price In USD
Stainless Steel 316H	$ 4.19 - Per kg

 

Is SUS316H magnetic?
No. SUS316H is non-magnetic in the annealed condition.However, slight magnetism may appear after cold working.

 

Stainless Steel 316H Applications: Oil & Petroleum Refining, Aerospace Structures, Food Processing, Pulp And Paper Processing, Soap And Photographic Handling, Textile Industry, Architectural, Pharmaceutical Processing.

 

What is the difference between SUS316H and SUS316L?

The main difference is carbon content: SUS316H has higher carbon (0.04-0.10%) for better strength at high temperatures (furnaces, heat exchangers), while SUS316L has lower carbon (max 0.03%) for superior weldability and resistance to intergranular corrosion (chemical tanks, marine), making 316L ideal for welded structures and 316H for extreme heat applications.

 

Is SUS316H more expensive than SUS316L?

Yes. SUS316H is typically 5% to 15% more expensive than SUS316L due to the following reasons: tighter carbon content control, market demand for high-temperature applications, and stricter quality requirements. However, its longer service life in high-temperature environments often results in lower overall life cycle costs.

 

GNEE currently has SUS 316H products in stock, including plates, sheets, coils, strips, tubes, bars, and wires. In addition, we offer a variety of surface finishes for you to choose from, such as No. 1, 2B, 2D, BA, No. 3, No. 4, HL, No. 8, sandblasting, etc.
We guarantee 100% quality. We will never deliver any defective products to our customers. Please contact us to customize your required product specifications, including shape, condition, surface treatment, and processing techniques.Email: info@gneestainless.com