China Manufacturer Smls Pipe Cold Rolled TP304/1.4301 /SUS304 Stainless Steel Seamless Pipe and Tube for Heat Exchanger Using

• Type: Stainless Steel Pipes
• Standard: ASTM
• Grade: 300 Series
• Certification: ISO, AISI, ASTM, GB, EN, DIN
• Shape: Round
• Technique: Cold Rolled
• Model NO.: TP304
• Surface Treatment: Pickling and Annealing
• Transport Package: Plywood Case, Knitting Strips
• Specification: OD: 1/2"--40", WT: 10S--XXS
• Origin: China
• HS Code: 7304419000
• Production Capacity: 15000tons/Year

Product Description

Product Description

 

Chemical Composition

Grade	C	SI	Mn	Cr	Ni	S	P
304	≤ 0.08	≤1.0	≤2.00	18.0-20.0	8.0-11	≤0.03	≤0.045
304L	0.035	≤1.0	≤2.00	18.0-20.0	8.0-12	≤0.03	≤0.045
304H	0.04-0.1	≤1.0	≤2.00	18.0-20.0	8.0-11	≤0.03	≤0.045

Mechanical Properties

Material	Tensile Strength ksi(MPa)	Yield Strength ksi(MPa)	Elongation (%)	Hardness Brinell/Vickers	Hardness Rockwell
304	≥75(515)	≥30(205)	≥ 35	≤192HBW/200HV	≤90HRB
304L	≥70(485)	≥25(170)	≥ 35	≤192HBW/200HV	≤90HRB
304H	≥75(515)	≥30(205)	≥ 35	≤192HBW/200HV	≤90HRB

Applications

• Kitchen sinks, consumer durables
• Chemical containers, including for transport
• Food processing equipment, particularly in beer brewing, milk processing, and wine making
• Fasteners and flange manufacturing
• Architectural applications such as roofing and cladding, doors and windows
• Automotive and aerospace components
• Heat exchangers

Material Summary

The stainless steel alloys AISI 304 and AISI 304L are the best known and most widely used chromium-nickel steels. Their excellent corrosion resistance, high strength and low carbon content make these austenitic steels particularly suitable for applications requiring welding.

304, 304H and 304L all possess the same nominal chromium and nickel content and thus possess the same corrosion resistance, ease of fabrication and weldability. The difference between 304, 304H and 304L is the carbon content which is >0.03, >0.05 and <0.03 respectively.

The carbon content of 304H (UNS S30409) is restricted to 0.04-0.10%, which provides optimal high temperature strength.

The carbon content of 304L (UNS 30403) is restricted to a maximum of 0.03%, which prevents sensitization during welding.

The carbon content of 304 (UNS 30400) is restricted to a maximum of 0.08%. Thus 304 is not useful for corrosive applications where welding is required such as tanks and pipes where corrosive solutions are involved, thus, 304L is preferred. And its lack of a minimum carbon content is not ideal for high temperature applications where optimal strength is required, thus, 304H is preferred. Thus 304 is typically restricted to bars that will be machined into components where welding is not required or thin sheets that are formed in articles such as kitchen sinks or cookware that are also not welded.

Carbon content has a strong influence on room temperature strength and thus the specified minimum tensile properties of 304L are 5 kilopounds per square inch (34 MPa) lower than for 304 (515 MPa). However, nitrogen also has a strong influence on room temperature strength and a tiny addition of nitrogen produces 304L with the same tensile strength as 304. Thus, practically all 304L is produced as dual certified 304/304L, meaning it meets the minimum carbon content of 304L and also meets the minimum tensile strength of 304.
 

Detailed Photos

FAQ

 

Are you a factory or a trading company?

We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc. if you need. Because we know this market well

Do you have any certificate?

We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.

What is your delivery time?

It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.

What is your payment terms?

Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.

How can you guarantee the quality of my goods?

All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.

How do you make our business long-term and good relationship?

1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.