304 Stainless Steel Seamless Pipe SUS304 1.4301 X5CrNi18-10 06Cr19Ni10

Excellent general corrosion resistance for atmospheric and mild chemical environments
Non-magnetic after solution annealing, stable mechanical performance
Good formability and weldability, easy for fabrication
Wide temperature adaptability for cryogenic and moderate high-temperature service
Cost-effective compared with high alloy stainless steel grades

Product Overview

304 Stainless Steel Seamless Pipe, also known as SUS304, 1.4301, X5CrNi18-10 and GB grade 06Cr19Ni10, is the most widely used austenitic seamless stainless steel pipe manufactured by hot rolling and cold drawing processes without welding seam. It is produced in compliance with GB/T14976, ASTM A312, ASTM A269, ASTM A790 and EN 10216-5 standards.

This grade contains approximately 18% chromium and 8% nickel, delivering reliable anti-corrosion performance in fresh water, atmospheric and weak acid working conditions. Our 304 seamless stainless pipe covers outer diameter from 6mm to 630mm, wall thickness 1mm to 50mm, supports full NPS range and Sch5S, Sch10S, Sch40S, Sch80S schedule series. Standard length is 6m or 12m, supplied in solution annealed & pickled finish, optional sand blasting or polishing surface treatment.

304 seamless stainless pipe is extensively applied in food processing, water treatment, petrochemical, construction, pharmaceutical and general industrial pipeline systems. Each batch is accompanied by Mill Test Certificate with heat number, chemical composition and mechanical test records.

Stainless Steel Seamless Steel Pipe

Chemical & Mechanical Property Snapshot

Grade	C (Max)	Cr	Ni	Mo	Yield Strength (MPa, Min)	Tensile Strength (MPa, Min)	Elongation (%) Min
304 (SUS304 /1.4301 / X5CrNi18-10 /06Cr19Ni10)	0.08	18.0-20.0	8.0-10.5	—	205	515	35

Detailed Technical Specifications

Item	Details
Product Name	304 Stainless Steel Seamless Pipe
Equivalent Grades	SUS304, 1.4301, X5CrNi18-10, 06Cr19Ni10
Product Type	Seamless Industrial Stainless Steel Pipe
Manufacturing Process	Hot rolling and cold drawing
Applicable Standards	GB/T14976, ASTM A312, ASTM A269, ASTM A790, EN10216-5
Outer Diameter	6-630 mm
Wall Thickness	1-50 mm
NPS Range	NPS 1/8″–NPS 24″
Schedule Series	Sch5S, Sch10S, Sch40S, Sch80S
Standard Length	6 m / 12 m
Surface Condition	Solution annealed and acid pickled
Surface Options	Sand blasting and polishing available
Testing	Hydrostatic test, non-destructive inspection, dimensional verification
Quality Documents	Mill Test Certificate with heat number, chemical composition and mechanical test records
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	15-25 working days after receiving deposit
Packaging	Plastic end caps + Waterproof paper + galvanized steel strap + seaworthy export wooden pallet

Shape Section

Item	Shape Description	Notes
Primary Shape	Round / Circular Seamless Pipe	Most common form for stainless seamless pipe; stable OD & WT dimensional control; covers all grades (304, 304L, 316, 316L, 317L, 321, 309S, 310S, 2205, 2507, 904L)
Square Seamless Tube	Hollow square seamless profile	Cold-drawn seamless, no welding seam; suitable for structural and machinery applications
Rectangular Seamless Tube	Hollow rectangular seamless profile	Cold-drawn seamless, seamless construction; custom side dimensions available
Hexagonal Seamless Tube	Hexagonal hollow seamless bar / tube	Cold-drawn seamless; used for fittings and hydraulic parts
Octagonal Seamless Tube	Octagonal hollow seamless tube	Special custom cold-drawn seamless product; suitable for low-volume applications

Dimension Section

Item	Specification Details
Product Form	Stainless Steel Seamless Steel Pipe
Outer Diameter (OD) Range	6 mm–630 mm; Common stock OD: 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm, 38 mm, 42 mm, 48 mm, 57 mm, 60 mm, 76 mm, 89 mm, 102 mm, 114 mm, 168 mm, 219 mm, 273 mm, 325 mm
Wall Thickness (WT) Range	1.0 mm–40 mm; Common stock WT: 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 5.0 mm, 6.0 mm, 8.0 mm, 10 mm
Length	Fixed length: 3000 mm / 6000 mm / custom cut length; Random length: 4000–7000 mm
Tolerance	OD tolerance: ±0.1–±0.5 mm (depends on OD grade); Wall thickness tolerance: ±10%
End Type	Plain end / Beveled end
Surface Finish	Pickled / Bright annealed / Polished
Packaging	Wooden bundle / Wooden case

Product Comparison Table

AISI / ASTM Grade	EN Material Number	EN Chemical Grade	JIS SUS Grade	GB / China Grade	Steel Type
304	1.4301	X5CrNi18-10	SUS304	06Cr19Ni10	Austenitic
304L	1.4306	X2CrNi19-11	SUS304L	022Cr19Ni10	Austenitic Low-C
316	1.4401	X5CrNiMo17-12-2	SUS316	06Cr17Ni12Mo2	Mo-Bearing Austenitic
316L	1.4404	X2CrNiMo17-12-3	SUS316L	022Cr17Ni12Mo2	Low-C Mo Austenitic

App Market

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Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is the equivalent grade of 304 stainless steel seamless pipe?

304 stainless steel seamless pipe equivalent grades are SUS304(JIS), 1.4301(EN), X5CrNi18-10(EN full chemical grade), 06Cr19Ni10(GB).

What is the main application of 304 seamless stainless pipe?

It is widely used in food & beverage pipelines, water treatment systems, general chemical pipelines, construction equipment, pharmaceutical industry and low corrosion industrial piping.

What surface finish can you supply for 304 seamless pipe?

Standard finish is solution annealed & pickled. Optional sand blasting and polishing surface are available upon request.

What is your MOQ and lead time for 304 seamless stainless steel pipe?

MOQ is 5 Ton, lead time is 15-25 working days after receiving deposit.

Can you provide Mill Test Certificate for 304 seamless pipe?

Yes, MTC with heat number, chemical composition and mechanical test records will be provided for each shipment.

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304 Stainless Steel Seamless Pipe SUS304 1.4301 X5CrNi18-10 06Cr19Ni10