ASTM A312 Stainless Steel Welded / Seamless Pipe

Product Introduction

ASTM A312 Stainless Steel Welded / Seamless Pipe is available in SS304, SS304L, SS316, SS316L, SS321, SS310S, and other grades for demanding industrial applications. Available in seamless and welded types with a wide range of outer diameters, wall thicknesses, lengths, surface finishes, and end treatments. The pipes offer excellent corrosion resistance, durability, and dimensional stability. They are widely used in chemical processing, oil & gas, food processing, water treatment, and industrial equipment. Customized specifications are available according to project requirements.

Specifications

Specification	Details
Material Grade	SS304 / SS304L / SS316 / SS316L / SS321 / SS310S / etc.
Applicable Standards	ASTM A312 / ASTM A213 / ASTM A269 / JIS / DIN / EN
Type	Seamless / Welded
Outer Diameter	6 mm – 1219 mm / Customized
Wall Thickness	5.8 m / 6 m / 11.8 m / 12 m / Customized
Length	5.8 m / 6 m / 11.8 m / 12 m / Customized
Surface Finish	Pickled / Polished / Satin / Mirror / 8K
Polished Finish	180# / 240# / 320# / 400# / 600#
End Treatment	Plain Ends / Beveled Ends / Threaded
Customization	Grade / Size / Length / Surface / End Treatment /......

Need a Customized Solution?

If you cannot find a suitable stainless steel pipe for your project, please contact Queen Metal. We provide customized solutions based on your required grade, dimensions, standard, surface finish, end treatment, and application.

Send us your specifications, technical requirements, drawings, or parameter files, and our team will provide a suitable quotation and supply solution.

Email: ding@queenmetal.com

Applications

Application	Typical Uses
Chemical Processing	Process piping and chemical equipment
Oil & Gas	Fluid transportation and industrial piping
Food & Beverage	Processing and sanitary piping
Pharmaceutical	Process equipment and sanitary systems
Water Treatment	Water and wastewater transportation
Industrial Equipment	Machinery and process systems
Heat Exchangers	Heat transfer equipment
Construction	Industrial and architectural applications

Quality Assurance & Testing

Quality Control	Details
Material Verification	According to applicable standards
Dimensional Inspection	OD / WT / Length
Surface Inspection	Surface condition and finish
Mechanical Testing	According to applicable standards
NDT Testing	Available according to product requirements
Hydrostatic Testing	Available according to applicable standards
MTC	Available according to order requirements
Third-Party Inspection	Available upon request

Packaging & Logistics

Item	Details
Packaging	Export-standard packaging according to product requirements
Protection	Plastic caps / Waterproof protection / Steel strapping as applicable
Wooden Cases	Available according to product type
Loading	Container / Bulk shipment
MOQ	According to product specifications and order quantity
Lead Time	Confirmed according to product and order requirements

FAQS

1. What stainless steel grades are available?

Common grades include SS304, SS304L, SS316, SS316L, SS321, and SS310S. Other stainless steel grades may be available according to specific project and material requirements.

2. What standards are available for stainless steel pipes?

Depending on the product type and application, stainless steel pipes can be supplied according to ASTM A312, ASTM A213, ASTM A269, JIS, DIN, EN, and other applicable standards.

3. What sizes of stainless steel pipe can you supply?

Outer diameters are available from 6 mm to 1219 mm, with wall thicknesses from 0.5 mm to 50 mm. Customized dimensions can also be discussed according to project requirements.

4. Are both seamless and welded stainless steel pipes available?

Yes. Queen Metal supplies both seamless and welded stainless steel pipes, depending on the required grade, dimensions, standard, and application.

5. What surface finishes are available?

Available finishes include pickled, polished, satin, and mirror/8K. Polished finishes can include 180#, 240#, 320#, 400#, and 600#.