316L Stainless Steel Pipe & Tube

What is 316L Stainless Steel Pipe & Tube?

316L Stainless Steel Pipe & Tube is the ultra-low carbon variant of 316 series, combining molybdenum's corrosion resistance with ultra-low carbon's anti-intergranular corrosion performance. It is specially designed for welding-intensive piping systems in corrosive environments.

Equivalent Grades (Horizontal)

UNS: S31603 | JIS: SUS316L | GB: 022Cr17Ni12Mo2 | EN: X2CrNiMo17-12-2 | W.Nr.: 1.4404

Chemical Composition (wt%, Horizontal)

C: ≤0.03 | 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: 485-650N/mm² | Yield Strength: ≥170N/mm² | Elongation: ≥40% | Hardness: ≤217HB

Core Characteristics

• Ultra-low carbon advantage: Eliminates post-weld intergranular corrosion, no need for post-weld annealing, greatly improving construction efficiency • Superior chloride corrosion resistance, suitable for long-term service in seawater, brine and weak acid media • Good low-temperature toughness, can be used stably in low-temperature environments (-196°C) without brittle fracture • Slightly lower strength than 316, but more suitable for welding-intensive structures such as heat exchangers and chemical pipelines

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

Carbon Content: 316 (≤0.08%) | 316L (≤0.03%) | Tensile Strength: 316 (515-690N/mm²) | 316L (485-650N/mm²) | Post-weld Annealing: 316 (Optional) | 316L (Not needed) | Corrosion Resistance: 316 (Good) | 316L (Excellent)

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.