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{"title":"ASTM A312 316Ti Stainless Steel Pipe with High Corrosion Resistance and Titanium","imgUrl":"https:\/\/img.chinax.com\/nimg\/11\/fc\/0611ea1ed75984c65ca1a45805c0-200x200-1\/astm_a312_316ti_stainless_steel_pipe_with_high_corrosion_resistance_and_titanium_stabilized_for_aisi_standard_bending_26_welding.jpg","attrs":{"Type":"Seamless\/Welded","Model Number":"316Ti","Section Shape":"Round","Payment Terms":"T\/T"}}
{"title":"ASTM A249 Standard Welded Stainless Steel Pipe with High Corrosion Resistance","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/41\/f7785ceff87598ff4391314a5dcc-200x200-1\/astm_a249_standard_welded_stainless_steel_pipe_with_high_corrosion_resistance_for_boiler_superheater.jpg","attrs":{"Model Number":"300 series","Section Shape":"Round","Color":"Silver","Product name":"ASTM A249 Welded Stainless Steel Tube"}}
This Seamless Stainless Steel Pipe ASTM A312 TP304 UNS S30408 DN25 NPS1 SCH10S OD33.4×2.77mm is manufactured strictly per ASTM A312 and ASME B36.19M standards. As SCH10S thin-wall stainless pipe, it adopts cold-drawn seamless forming technology without welding seam, effectively avoiding leakage risk under low working pressure.
Key attributes
Item
Specification
Product Name
Seamless Stainless Steel Pipe
Material Grade
TP304, UNS S30408
Nominal Diameter
DN25
Standards
ASTM A312 / ASME SA312, ASME B36.19M
NPS Size
NPS 1 Inch
Schedule Class
SCH10S
OD
33.4 mm
WT
2.77 mm
Standard Length
6m Fixed Length
Optional Length
Random Length / Cut to Size
Surface Finish
Annealed & Pickled
Products Description
Product Execution Standards
Main Pipe Standard: ASTM A312 / ASME SA312
Dimension Standard: ASME B36.19M (SCH grade system for stainless pipe)
Material Grade: TP304, UNS S30408 (equivalent to GB 06Cr19Ni10)
Inspection Standard: Eddy current test, hydrostatic pressure test per ASTM A312
Chemical Composition
Element
Symbol
Standard Range
Carbon
C
≤0.08
Chromium
Cr
18.00–20.00
Nickel
Ni
8.00–11.00
Manganese
Mn
≤2.00
Silicon
Si
≤1.00
Phosphorus
P
≤0.045
Sulfur
S
≤0.030
Iron
Fe
Balance
Mechanical Properties
Tensile Strength: ≥515 MPa
0.2% Offset Yield Strength: ≥205 MPa
Elongation (50mm gauge length): ≥35%
Max Hardness: HB ≤187
Feature: Excellent low-temperature toughness, easy bending, flaring and cutting on site
Core Advantages
SCH10S thin-wall structure creates larger inner flow bore, low fluid resistance, lower material and shipping cost
Seamless integral forming, no weld crack, stable service performance under low pressure
Annealed pickled matte surface, clean tube interior, hard to accumulate dirt
UNS S30408 304 stainless steel, excellent anti-rust property for clean fluid environment
Good processability, easy cutting, bending and on-site welding construction
Application Fields
Pure water & industrial water treatment equipment
Food, beverage and dairy factory transmission pipelines
Pharmaceutical purified water and CIP cleaning system
HVAC cooling & heating circulation piping
Low-pressure light chemical medium delivery
Supply & Factory Service
Stock status: DN25 SCH10S OD33.4×2.77mm ready stock, fast delivery
Custom service: Custom cutting length, customized export wooden case packaging
Export package: Waterproof plastic film + plywood box to prevent scratch during sea transportation
Full certification supply: Original MTC Material Test Certificate, chemical composition report, mechanical test record, pressure inspection document, support international project bidding
MOQ & Lead time: Small MOQ acceptable, 3–7 working days for in-stock goods
Main export markets: Southeast Asia, Middle East, Europe, South America industrial engineering wholesale
Contrast: SCH10S VS SCH40S DN25 Pipe
Comparison Item
SCH10S DN25 OD33.4×2.77mm
SCH40S DN25 OD33.4×3.38mm
Wall Thickness
Thin wall, light weight
Standard medium wall
Flow Capacity
Larger inner diameter, high flow rate
Smaller inner bore
Working Pressure
Low pressure ≤1.6MPa
Medium general industrial pressure
Cost
Lower material & shipping cost
Higher raw material cost
Main Usage
Pure water, food, pharmaceutical, HVAC
Chemical circulation, general industrial pipeline
FAQ
What standard does this DN25 stainless pipe follow? It complies with ASTM A312 TP304 UNS S30408, ASME B36.19M SCH10S dimension standard.
Is SCH10S DN25 pipe suitable for seawater pipeline? No, UNS S30408 without molybdenum cannot resist chloride ion corrosion, select TP316L SCH10S pipe for marine projects.
Can you provide MTC certificate for this batch of SCH10S pipe? Yes, complete chemical, mechanical and dimension inspection MTC reports can be provided for every shipment.
What surface finish of DN25 SCH10S seamless pipe do you supply? Standard annealed & pickled finish; bright annealed sanitary surface is available upon request.
Can I cut the 6m fixed-length pipe into shorter sizes? Custom cut-to-length service is available according to customer construction requirements.
Can DN25 OD32 pipe be marked SCH10S? No, SCH10S only matches ASME standard OD33.4 DN25 pipe; OD32 is non-standard size without official schedule specification.
