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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > 304 Stainless Steel Pipe Mill Test Report Available ASTM A312 Seamless 1/2" to 12"

304 Stainless Steel Pipe Mill Test Report Available ASTM A312 Seamless 1/2" to 12"

Product Spotlights

High-quality 304 stainless steel seamless pipe manufactured to ASTM A312, with complete Mill Test Report for full traceability. Sizes from 1/2" to 12", wide range of schedules. ISO9001 certified, backed by a reliable supplier with US$50M+ annual export. Customizable lengths, finishes, and ends. Suitable for oil & gas, chemical, food, and structural applications.

Negotiable MOQ: 1 Ton (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, 304 Stainless Steel

Type:

Seamless

standard:

ASTM A312

Contact Supplier Request Quote Chat Now

Hemaokang Steel (Shandong) Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao Port

Delivery Detail:

7 days

Product Details
Company Profile
Contact Us

Material Other, 304 Stainless Steel

Type Seamless

standard ASTM A312

size_range 1/2 inch to 12 inch

wall_thickness Schedule 5S to XXS (customizable)

surface_finish Annealed and Pickled, Polished, or Bright

application Oil & Gas, Chemical, Food Processing, Construction

certification ISO9001

test_report Mill Test Report Available

length Random or Fixed (customizable)

Hemaokang Steel (Shandong) Co., Ltd. is proud to offer premium 304 Stainless Steel Seamless Pipe manufactured to ASTM A312 specifications, with a complete Mill Test Report (MTR) available for every shipment. As a newly established yet rapidly growing supplier with an annual export value of US$50 Million – US$100 Million, we combine state-of-the-art production techniques with rigorous quality control to deliver pipes that meet the highest industry standards. Our seamless pipes range from 1/2 inch to 12 inch nominal diameter, making them suitable for a wide variety of demanding applications including oil & gas, chemical processing, food equipment, and structural engineering. With ISO9001 certification and a global customer base across North America, South America, Europe, Asia, and Africa, we ensure that every pipe you receive is backed by traceable documentation and consistent quality.

Our 304 stainless steel seamless pipes are produced through hot extrusion or cold drawing processes, ensuring a homogeneous structure with no welded seams. This eliminates weak points and provides superior pressure resistance, corrosion resistance, and durability. The material composition complies with ASTM A312 requirements, offering excellent performance in both high-temperature and cryogenic environments. Below we detail the key technical specifications and advantages.

Product Features & Technical Specifications

Seamless Construction: No welded joints – eliminates risk of weld defects and ensures uniform strength across the entire pipe.
Material Grade: 304 Stainless Steel (UNS S30400) – excellent corrosion resistance in most environments, including food, chemical, and atmospheric conditions.
Standard Compliance: ASTM A312 / ASME SA312 – the industry standard for seamless and welded austenitic stainless steel pipe.
Size Range: Nominal pipe sizes from 1/2" to 12", with wall thicknesses available in Schedule 5S, 10S, 40S, 80S, and custom schedules.
Mill Test Report (MTR): Each pipe is supplied with a detailed MTR documenting chemical composition, mechanical properties, and hydrostatic test results.
Surface Finish: Options include annealed and pickled (standard), polished (up to 400 grit), or bright finish as per customer requirements.
Length: Standard random length 20 ft (6 m) or fixed lengths upon request – customizable.
End Preparation: Plain ends, beveled ends, or threaded ends – available per order.
Packaging: Bundled with steel straps, plastic caps on ends, and waterproof wrapping for export protection.

Parameter	Value
Standard	ASTM A312 / ASME SA312
Grade	304 (UNS S30400)
Type	Seamless
Size Range	1/2 inch to 12 inch Nominal Pipe Size
Wall Thickness	Schedule 5S, 10S, 40S, 80S, XXS (custom)
Chemical Composition (Typical)	C: ≤0.08%, Mn: ≤2.00%, P: ≤0.045%, S: ≤0.030%, Si: ≤1.00%, Cr: 18.0-20.0%, Ni: 8.0-10.5%
Mechanical Properties	Tensile Strength: ≥515 MPa, Yield Strength: ≥205 MPa, Elongation: ≥35%
Hydrostatic Test	Performed per ASTM A312 requirements
Test Report	Mill Test Report (MTR) included with each order

Key Benefits for Your Business: By choosing our 304 stainless steel seamless pipe, you gain a product that offers exceptional long-term value. The seamless construction reduces the risk of leaks and failures, lowering maintenance costs over the pipeline's lifetime. The 304 grade provides excellent resistance to oxidation and corrosion, making it ideal for use in chemical processing, food and beverage, pharmaceutical, and marine environments. With a wide size range from 1/2" to 12", we can serve both small-scale projects and large industrial installations. The inclusion of a Mill Test Report gives you full traceability, enabling you to meet end-user requirements and regulatory standards with confidence.

Quality Assurance & Trust: Hemaokang Steel operates with a strict quality management system certified under ISO9001. Our factory in Liaocheng, Shandong, employs advanced production lines and experienced technicians. We have successfully exported to over 10 countries and regions, including North America, South America, Europe, Africa, and Southeast Asia, maintaining an annual export value of US$50 million to US$100 million. Each pipe undergoes visual inspection, dimensional checks, mechanical testing, and hydrostatic testing before despatch. Our team of 51-100 employees ensures that every order is handled with professionalism and care. We stand behind every pipe we deliver – your satisfaction is our priority.

Why Partner with Hemaokang Steel? As a company founded in 2025, we bring fresh energy and a customer-centric approach to the steel industry. We offer competitive pricing, flexible lead times, and customization options including special wall thicknesses, lengths, and surface finishes. Our global logistics network ensures timely delivery to any port worldwide. Contact us today to discuss your requirements or request a quotation. We are ready to provide the right solution for your project.

Frequently Asked Questions (FAQ)

Q: What does the Mill Test Report (MTR) include?
A: The MTR includes the chemical composition analysis, mechanical property test results (tensile, yield, elongation), hydrostatic test pressure, and heat number. It is signed by our quality inspector and can be provided in soft or hard copy.
Q: Are these pipes suitable for high-temperature applications?
A: Yes, 304 stainless steel maintains good oxidation resistance up to 870°C (1600°F) in intermittent service and 925°C (1700°F) in continuous service. However, for extreme high-temperature environments, we recommend consulting our technical team for grade selection.
Q: Can you supply pipes with special wall thicknesses or custom lengths?
A: Absolutely. We can produce pipes with custom wall thicknesses (e.g., Schedule 10, 40, 80, or non-standard) and fixed lengths from 1m to 12m. Please specify your requirements when placing an order.
Q: What is the minimum order quantity (MOQ)?
A: The MOQ depends on the size and schedule. For standard sizes, our MOQ is typically 1 ton. For small quantities or samples, please contact us to discuss availability.
Q: Do you offer third-party inspection services?
A: Yes, we welcome third-party inspection by SGS, BV, or any other accredited agency. The cost can be arranged upon request.
Q: How long is the delivery time for a typical order?
A: For standard sizes and quantities, delivery is usually within 15-30 working days after deposit. For large orders or custom specifications, lead time may be extended; we will confirm upon order.
Q: What surface finishes are available?
A: The standard finish is annealed and pickled (matte). We also offer polished (mirror) finish up to 400 grit, bright finish, or passivated surface. Please specify your preference.
Q: Can you provide free samples?
A: Yes, we can provide small samples (e.g., 300mm length) for evaluation. The sample is free, but the customer pays for shipping. Please contact our sales team to arrange.