316L Stainless Steel Pipe & Tube: Ultra-Low Carbon Corrosion Resistant Welding Pipe

What is 316L Stainless Steel Pipe & Tube?

316L is the ultra-low carbon version of 316, combining molybdenum's chloride corrosion resistance and ultra-low carbon's anti-intergranular corrosion performance, designed for welding-intensive piping in harsh 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

• Post-weld corrosion prevention: Ultra-low carbon eliminates intergranular corrosion, no post-weld annealing needed • Superior chloride resistance: Suitable for long-term service in seawater, brine and weak acid media • Excellent low-temperature toughness: Stable at -196°C, adapting to low-temperature corrosive piping • Welding-intensive structure friendly: Ideal for chemical pipelines and heat exchangers

316L vs 316 Stainless Steel Pipe (Horizontal)

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

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.