ASTM A312m Hot Rolled S31803 DN80 Sch40 Heat Exchanger Pipe 304L Super Duplex 310S 309S 2507 Square/Round Tubes SUS304 316L 321 Stainless Steel Tube Price

Product Description

Product Description

Stainless 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
Key Performance Summary Rankings
Corrosion Resistance (Best → Worst)316L > 321 > 304 > 201
High Temperature Resistance (Best → Worst)321 > 316L > 304 > 201
Price (Low → High)201 < 304 < 321 < 316L
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
 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

PMaterial Grade	304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202
Standard	JIS/JIS/SUS/GB/DIN/ASTM/AISI/EN
Surface	Polishing,annealing,pickling,bright
Technique	Cold Rolled; Hot Rolled
Size	1)stainless steel round pipe/tube:  Wall thickness:1mm-150mm Outer diameter:6mm-2500mm 2)stainless steel square pipe/tube: Wall thickness:1mm-150mm Outer diameter:4mm*4mm-800mm*800mm 3)stainless steel rectangular pipe/tube:  Wall thickness:1mm-150mm Outer diameter:6mm-2500mm
Length	4000mm,5800mm,6000mm,12000mm,or as required.
Applicaiton	Exterior decoration; Architectur; Evevator; Kitchen; Ceiling; Cabinet; Advertising nameplate; Roof structure;Shipbuilding
Trade Terms	EXW,FOB,CIF, CFR
Loading Port	Shanghai port, Tianjin port, Qindao port or as customized
Payment terms	1)T/T 30 % deposit in advance and balance 70%T/T before delivery.
	2) 30% deposit by T/T, the balance by L/C at sight.
	3) 100% L/C at sight.
MOQ	1Ton
Packing Detail	Plastic bag/woven packing or per requirements
Delivery Time	1.Usually,within10 - 20days after receiving deposit or LC. 2.According to the order quantity
Samples	Free samples are provided but the freight is borne by the buyer

Detailed Photos

 

Application

Quality Inspection

Packaging & Shipping

Company Profile

Development is endless and progress is endless. We will continue to carry forward the fine tradition and pioneering and innovative spirit of the Chinese people in Wuxi. Passionate, create a century-old Jinhua, a beautiful blueprint, go all out, and move forward with great strides. A bigger, more advanced and more dynamic our company quickly rose up. Looking forward to cooperating with you.

Certifications

FAQ

Q1: Will you delivery the goods on time?

A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.

 

Q2: Do you provide samples ? is it free or extra ?

A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.

 

Q3: Do you accept the third party inspection?

A: Yes absolutely we accept.

 

Q4: How could you guarantee your products?

A: Each piece of products is manufactured by certified workshops, inspected by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.