Name: ASTM A270 TP304 Sanitary Stainless Steel Welded Tubing with Mechanical Polished and Electropolished Finish and Customized Ra Roughness
Brand: Yuhong Group Co.,Ltd
SKU: A270 TP304 Welded Tube
Price: 100000 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

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ASTM A270 TP304 Sanitary Stainless Steel Welded Tubing with Mechanical Polished and Electropolished Finish and Customized Ra Roughness

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	EN 10204 3.1 OR 3.2 /PED 2014/68/EU/ISO 9001
Model Number:	A270 TP304 Welded Tube

Payment & Shipping Terms:

Minimum Order Quantity:	1PC
Price:	Negotiation
Packaging Details:	Individual plastic bag + end caps + wooden crate
Delivery Time:	Depends on quantity
Payment Terms:	L/C,T/T
Supply Ability:	10000 Ton/month

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Detailed Product Description

UNS Number:	S30400	Material Grade:	ASTM A270 TP304
Surface Finish:	Mechanical Polished / Electropolished	Surface Roughness:	Customized Ra
Polishing Grade:	No. 80 / 120 / 180 / 240	Outside Diameter:	Up To 304.8 Mm
Wall Thickness:	According To Specification	Tube Construction:	Welded
Highlight:	Sanitary Stainless Steel Welded Tubes , Oil Gas Stainless Steel Welded Tubes , TP304 Welded Sanitary Pipe

ASTM A270 TP304 Sanitary Stainless Steel Welded Tubing with Polished Finish

ASTM A270 TP304 sanitary stainless steel welded tubing is manufactured for fluid-handling systems where controlled surface condition, corrosion resistance and dimensional consistency are important.

The tubing is produced from TP304 austenitic stainless steel and can be supplied with mechanically polished or electropolished surfaces according to project requirements. Different polishing grades and specified surface roughness values can be accommodated for the inside surface, outside surface, or both.

The welded construction provides a practical solution for sanitary piping layouts requiring consistent dimensions and suitable surface finishing. ASTM A270 also specifies requirements for heat treatment, mechanical testing, nondestructive testing and sanitary surface finishes.

Product Specifications

Item	Specification
Product Type	Sanitary Stainless Steel Welded Tubing
Material Grade	ASTM A270 TP304
UNS	S30400
Material Type	Austenitic Stainless Steel
Manufacturing	Automatic Welded Construction
Standard	ASTM A270 / A270M
Surface Finish	Mechanical Polished / Electropolished
Polishing Grade	No. 80 / 120 / 180 / 240 or Customized
Surface Roughness	Specified Ra Available
Outside Diameter	Up to 304.8 mm
Wall Thickness	According to Specification
Length	Standard or Cut-to-Length
Inspection	Dimensional, Surface, Hydrostatic or Nondestructive Testing
Documentation	MTC / EN 10204 3.1 Available

Equivalent Grades

Grade	UNS No	Old British	Euronorm	Swedish SS	Japanese JIS
304	S30400	304S31	1.4301	2332	SUS 304

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
304	0.08 max	2.0 max	0.75 max	0.045 max	0.030 max	18.0-20.0	-	8.0-10.5	0.10 max

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
304	515	205	40	92	201

Physical Properties

Grade	Density (kg/m³)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)	Thermal Conductivity (W/m.K)	Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nΩ.m)
304	8000	193	17.2	16.2	500	720

Applications

Food and beverage processing lines
Dairy processing equipment
Beverage filling and conveying systems
Sanitary water and utility piping
Clean fluid transfer systems
Cosmetic and personal-care processing equipment
Chemical process lines requiring controlled surface finish
Sanitary heat-transfer equipment
Process skids and fluid-handling assemblies

Product Advantages

Controlled Surface Finish: Mechanical polishing and electropolishing options allow the tube surface to be matched with specific cleanliness and surface-finish requirements.
TP304 Austenitic Stainless Steel: TP304 / UNS S30400 provides a combination of corrosion resistance, weldability and forming characteristics suitable for a wide range of sanitary piping systems.
Welded Tube Construction: Automated welded production allows controlled tube geometry and repeatable dimensional characteristics.
Multiple Surface Options: The tubing can be supplied with different mechanical polishing grades or electropolished surfaces depending on the required finish.
Custom Dimensional Supply: Outside diameter, wall thickness, length and surface requirements can be specified according to project drawings or purchase specifications.

Mechanical Polishing vs. Electropolishing

Finish	Characteristics
Mechanical Polishing	Abrasive finishing process used to improve surface smoothness and appearance
No. 80 / 120 / 180 / 240	Different mechanical polishing grades available under ASTM A270
Electropolishing	Electrochemical finishing process producing a bright, reflective surface
Specified Ra Finish	Maximum surface roughness can be specified for ID, OD or both