Hot Selling ASTM A312 TP304/304L S30403 Round Tube Mirror Polished DN80 Sch40 Cold Rolled Tp316 316L Seamless Stainless Steel Pipe for Power Industry

Product Description

Product Description

Hot Selling ASTM A312 TP304/304L S30403 Round Tube Mirror Polished DN80 SCH40 Cold Rolled TP316 316L Seamless Stainless Steel Pipe for Power Industrytainless Steel Pipe
Full professional English specification for international trade
Basic Definition
Stainless steel pipe is a long hollow steel strip made of corrosion-resistant stainless steel, widely used for fluid transportation, structure, decoration, heat exchange and industrial pipelines.
Common Grades Comparison (Most Popular in Global Market)

Grade	Material Series	Corrosion Resistance	Heat Resistance	Mechanical Strength	Weldability	Main Application	Price Level
201	Austenitic stainless steel	Fair	Low	Medium	Good	Decoration, handrail, furniture, low-cost pipeline	Lowest
304	Austenitic stainless steel	Good	Medium	Medium	Excellent	Universal general purpose, water pipe, food industry, household, construction	Medium
316L	Austenitic stainless steel	Excellent	High	Medium	Excellent	Marine, chemical industry, seawater, acid & alkali environment, medical equipment	High
321	Heat-resistant stainless steel	Good	Ultra-high	High	Good	High temperature pipeline, exhaust pipe, boiler	High

Pipe Types

Seamless Stainless Steel PipeNo welding seam, high pressure resistance, compact structure, for high-pressure & harsh working conditions.
Welded Stainless Steel PipeLongitudinal welded pipe, low cost, large diameter available, widely used for decoration, low pressure water supply.

Common Specifications
Outside Diameter (OD): 6mm ~ 630mm
Wall Thickness (WT): 0.5mm ~ 50mm
Length: 6m fixed length, random length, customized length
Surface finish: 2B, BA, No.1, brushed, mirror polished

Main Applications
Water supply & drainage pipeline
Chemical transmission pipeline
Marine engineering and offshore equipment
Architectural decoration, handrails, guardrails
Food processing, pharmaceutical industry
Heat exchanger tubes, boiler tubes
Automotive exhaust system
Stainless Steel Pipe Grade Comparison Table
Full Technical Parameter Table

Grade	Steel Type	Main Alloy Elements	Corrosion Resistance	High Temperature Resistance	Hardness	Weldability	Magnetic	Surface Oxidation	Price Level	Main Applications for Pipe
201	Austenitic	Low Ni, High Mn	Fair	Low	Medium	Good	Slightly magnetic	Easy rust in humid/salty air	Lowest	Decoration pipes, handrails, guardrails, low-cost structure, indoor pipelines
304	Austenitic	18%Cr, 8%Ni	Good	Medium	Medium	Excellent	Non-magnetic	Stable, anti-rust in normal environment	Medium	Universal water pipes, food equipment, household pipeline, construction, general industrial use
316L	Austenitic	16%Cr, 10%Ni, 2-3%Mo	Excellent	High	Medium	Excellent	Non-magnetic	Best anti-corrosion against seawater, acid and alkali	High	Marine pipeline, chemical industry, seawater environment, medical equipment, corrosive medium transmission
321	Austenitic	18%Cr, 10%Ni, Ti stabilized	Good	Ultra-high temperature	Medium	Good	Non-magnetic	Excellent anti-high temperature oxidation	High	High-temperature pipes, exhaust pipes, boiler tubes, heat exchanger pipelines
430	Ferritic	17%Cr, Low Ni	Medium	Medium	Medium	Average	Strongly magnetic	Good atmospheric corrosion resistance	Low	Decorative pipes, kitchen equipment, low-corrosion pipelines

Brief Performance Ranking
Corrosion Resistance (Best → Worst)316L > 321 > 304 > 430 > 201
High Temperature Resistance (Best → Worst)321 > 316L > 304 > 430 > 201
Weldability (Best → Worst)304 ≈ 316L > 321 > 201 > 430
Price from Low to High201 < 430 < 304 < 321 < 316L
Professional Notes for Stainless Steel Pipe
Seamless Pipe: High pressure resistance, for industrial & high demand projects
Welded Pipe: Low cost, large diameter, widely used for decoration and normal pressure water supply
Common surface finishes: 2B, BA, No.1, Brushed, Mirror Polished
Common standards: ASTM A240, ASTM A312, JIS, EN
 

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FAQ

Q1: Why choose us?
A: Our company, as an internationally experienced and professionalsupplier, has been engaged in steel business for more than ten years. Wecan provide a variety of steel products with high quality to our clients.

Q2: Can you provide OEM/ODM service?
A: Yes. Please feel free to contact us for more details

Q3:What is your terms of payment?
A: 100% T/T advance.
30% T/T and balance against copy of documents.
30% T/T advance, balance L/C at sight.

Q4: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange theprofessional sales team to follow up your case.

Q5: Can you provide sample?
A: Yes. Sample is free for regular sizes, but the buyer needs to pay freightcost.

Q6: How long is your delivery time?
A: Regular lead time is 15 to 30 days after receiving deposit.