316H Stainless Steel Pipe & Tube

What is 316H Stainless Steel Pipe & Tube?

316H Stainless Steel Pipe & Tube is the high-carbon molybdenum-containing austenitic stainless steel piping product, optimized for high-temperature creep strength. It is dedicated to high-temperature, high-pressure and high-stress industrial piping scenarios.

Equivalent Grades (Horizontal)

UNS: S31609 | JIS: SUS316H | GB: 07Cr17Ni12Mo2 | EN: X6CrNiMo17-12-2 | W.Nr.: 1.4407

Chemical Composition (wt%, Horizontal)

C: 0.04-0.10 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.030 | Cr: 16.00-18.00 | Ni: 10.00-14.00 | Mo: 2.00-3.00 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.98g/cm³ | Melting Point: 1375-1450°C | Tensile Strength: ≥515N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥40% | Hardness: ≤217HB

Core Characteristics

• High carbon optimization: Enhances high-temperature creep strength, maintaining structural stability under 600-870°C long-term high-stress service • Molybdenum addition ensures good high-temperature oxidation and chloride corrosion resistance, adapting to harsh high-temperature corrosive environments • Mandatory post-weld annealing: Optimizes grain structure, ensuring consistent high-temperature performance and corrosion resistance • Ideal for boiler superheaters, high-temperature process pipelines and high-pressure corrosive piping in power plants

316 vs 316H Stainless Steel Pipe & Tube (Horizontal)

Carbon Content: 316 (≤0.08%) | 316H (0.04-0.10%) | High-Temp Creep Strength: 316 (General) | 316H (Excellent) | Annealing Requirement: 316 (Optional) | 316H (Mandatory) | High-Temp Adaptability: 316 (≤800°C) | 316H (≤870°C)

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
316	Min	-	-	-	0	-	16.0	2.00	10.0	-
	Max	0.08	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10
316L	Min	-	-	-	-	-	16.0	2.00	10.0	-
	Max	0.03	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10
316H	Min	0.04	0.04	0	-	-	16.0	2.00	10.0	-
	max	0.10	0.10	0.75	0.045	0.03	18.0	3.00	14.0	-

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.