S316L Stainless Steel Pipe

1. Standard: ASTM A312、ASME SA312
2. Diameters: From 1/8 inch to 30 inch.
3. Wall thickness: SCH 10S, SCH40S, SCH80S
4. Length: Single Random Length, Double Random Length and Customized

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Product Introduction

HT PIPE is a leading S316L stainless steel pipe supplier and manufacturer in China, with 15+ years serving global B2B buyers. We stock and supply 316L seamless pipes, welded pipes, and tubes per ASTM A312, ASTM A269, ASTM A213, ASME SA312, and EN 10216-5 (1.4404). From standard Sch 40S water piping to precision cold-drawn instrumentation tubing, we deliver with full mill test certificates at competitive factory-direct pricing.

Bar & Rod

Plate & Sheet

Coil & Strip

Pipe & Tube

Fitting: Flange, Tee, Elbow, Reducer etc.

Forging: Ring, Shaft, Circle, Block etc.

Parameter	Specification
Material Grade	316L / UNS S31603 / EN 1.4404 / SUS 316L / X2CrNiMo17-12-2
Applicable Standards	ASTM A312 (seamless & welded pipe), ASTM A269 (general service tube), ASTM A213 (boiler tube), ASME SA312, EN 10216-5, NACE MR0175
Size Range	OD 1/8" – 48" (DN6 – DN1200)
Wall Thickness	Sch 5S, 10S, 40S, 80S, 160, XXS
Type	Seamless, Welded (ERW/EFW), Cold Drawn, Hot Rolled, Bright Annealed
Length	Single Random (5-7m), Double Random (11-13m), Cut-to-length
Surface Finish	Pickled & Passivated, Bright Annealed, Mill Finish, Polished (180G-600G)
End Finish	Plain End (PE), Beveled End (BE), Threaded (NPT/BSPT)

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Element	C	Cr	Ni	Mo	Mn	Si	P	S	N	Fe
%	≤0.03	16.0-18.0	10.0-14.0	2.0-3.0	≤2.0	≤1.0	≤0.045	≤0.03	≤0.10	Balance

Property	316L (1.4404)	304L (1.4307)	316Ti (1.4571)
Mo Content	2.0-3.0%	None	2.0-2.5%
PREN	~24	~18	~25
Chloride Resistance	Good	Moderate	Good (Ti-stabilized)
Max Temp	~450°C	~425°C	~600°C
Best For	General corrosion + welding	Budget-sensitive, no chlorides	High-temp corrosive service
Relative Cost	1.1x vs 304L	1x (baseline)	1.3x vs 304L

Oil & Gas: Process piping, instrument tubing, hydraulic lines (NACE MR0175 in annealed condition)

Chemical Processing: Heat exchangers, condensers, tank coils for mildly corrosive media

Food & Beverage: Dairy piping, brewery process lines, CIP (clean-in-place) systems

Pharmaceutical: WFI (water for injection) piping, purified water loops, process vessels

Marine: Deck piping, handrails, fittings in above-waterline applications

Water Treatment: Desalination pretreatment piping, water distribution systems

Construction: Structural handrails, architectural elements in coastal environments

NPS	DN	OD (mm)	Sch 10S WT	Sch 40S WT	Sch 80S WT
1/2"	15	21.3	2.11	2.77	3.73
1"	25	33.4	2.77	3.38	4.55
2"	50	60.3	2.77	3.91	5.54
3"	80	88.9	3.05	5.49	7.62
4"	100	114.3	3.05	6.02	8.56
6"	150	168.3	3.40	7.11	10.97
8"	200	219.1	3.76	8.18	12.70
10"	250	273.0	4.19	9.27	15.09
12"	300	323.8	4.57	9.52	17.48

Massive inventory: 500+ tons of 316L pipe stocked in Zhengzhou. Common sizes ship within 3-5 days.

Competitive EXW/FOB pricing: Factory-direct supply chain. Save 10-20% vs trading company quotes.

Full testing: Chemical analysis (spectro), mechanical (tensile, hardness), PMI, hydrostatic test, IGC test (ASTM A262 Practice E), NDT (ultrasonic/eddy current).

Surface options: Pickled & passivated, bright annealed, electropolished, bead blasted.

Flexible packing: Wooden cases, pallets, bundles, or as required. Seaworthy export packing standard.

Global certifications: ISO 9001, PED 2014/68/EU, AD 2000 available upon request.

316L stainless steel pipe pricing follows the stainless steel surcharge mechanism (base price + alloy surcharge). As a reference, current market range for ASTM A312 seamless 316L pipe is:

1/2" – 4" Sch 40S: approximately $5-9/kg

6" – 12" Sch 40S: approximately $6-11/kg

Precision cold-drawn tube (small OD): $8-15/kg

Contact us with your exact specifications for a firm quotation. We respect your procurement process - no hidden charges, no bait-and-switch.

Q: What is the difference between 316 and 316L stainless steel pipe?

316L has lower carbon content (≤0.03% vs ≤0.08% for 316), which reduces the risk of intergranular corrosion after welding. For most applications, 316L is the preferred choice. 316H (high carbon) is used for elevated temperature strength above 500°C.

Q: Can 316L pipe be used for seawater?

316L offers moderate resistance to flowing seawater but is susceptible to pitting and crevice corrosion in stagnant or warm (>25°C) seawater. For critical seawater applications, consider Duplex 2205 or 254SMO instead.

Q: Do you supply dual-certified 316/316L pipe?

Yes. Most of our 316L pipe is dual-certified to 316/316L, meeting both the mechanical requirements of 316 and the low-carbon requirements of 316L. This is standard in our inventory.

Q: What is your minimum order quantity?

For stock sizes, we accept orders from 50 kg upward. For custom mill production, MOQ typically ranges from 200-500 kg depending on the specification. We specialize in serving both project-scale buyers and smaller resellers.

Q: Can you supply polished or sanitary finish 316L tube?

Yes. We supply cold-drawn bright annealed 316L tube with OD tolerance ±0.05mm and surface roughness Ra ≤ 0.8μm, suitable for instrumentation, hydraulic, and food-grade applications.

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