High Quality ASTM A312 TP304 Seamless Stainless Steel Pipe for Process Piping

Name: High Quality ASTM A312 TP304 Seamless Stainless Steel Pipe for Process Piping
Brand: CNB NEW MATERIAL (TIANJIN) CO., LTD.
SKU: 2309627075

Tianjin, ChinaCNB NEW MATERIAL (TIANJIN) CO., LTD.

US$600.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Negotiable

Warranty

Variable

Model NO.

CNB-SP

Type

Welded

Technique

Cold Rolled

Material

Carbon Steel

Surface Treatment

Polished

Usage

Hydraulic/Automobile Pipe

Section Shape

Round

Application

Heat Exchanger, Boiler Tube, Chemical Processing,

Inventory

in Stock

Od Range

6mm-323mm, Wall: 0.5mm -30mm

Material Grade

TP304, TP304L, Tp316L, Tp321, Tp321h, Tp347h,

Standard

ASTM A312, ASTM A213, ASTM A269, ASTM A789,

Transport Package

Export Seaworthy Package

Specification

Custom

Trademark

CNB

Origin

China

HS Code

73063090

Production Capacity

50000PCS/Month

Key features

Our ASTM A312 stainless steel pipes are manufactured to the exacting standards required for chemical, petrochemical, and power generation process piping.

TP321 stainless steel pipe prevents intergranular corrosion after welding and during sustained high-temperature operation to 900 Celsius, making it the preferred choice for superheaters and boiler.

S30815 stainless steel pipe offers exceptional high-temperature strength and oxidation resistance for furnace components, radiant tubes, and thermal processing equipment.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Multi-language Pioneer

CNB NEW MATERIAL (TIANJIN) CO., LTD.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 2 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.22h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryCNB NEW MATERIAL (TIANJIN) CO., LTD. is a China-based trading company established in 2023 with three employees. It reports quality assurance, raw-material traceability, written inspection instructions, in-stock capability, and customization from samples or designs. The company states that 90% of sales are exports and cites international companies as fixed raw-material customers, although no specific case details are provided. Service reach is limited: it reports no overseas agents or branches, overseas warehouses, overseas showroom, offline trade-show participation, or overseas service countries. R&D evidence is weak, with no new product information in the past year, no ODM, no SDK, and no branded OEM capability. Financial information provided shows zero operating revenue and zero profit-related figures for the stated periods, requiring caution. Outsourcing procedures, manufacturing-capacity contracts, corrective-action records, complaint-handling records, and supplier-assessment records are incomplete or...

Financial creditThe submitted financial slices report zero operating revenue and zero profit-related figures for the stated periods, while current ratios are also reported as zero. These figures do not demonstrate financial strength and indicate a material need for verification before relying on the supplier’s financial capacity.

R&D capabilityThe supplier reports no new product information during the past year, no ODM service, and no available SDK. Although it can customize from samples and designs, the provided evidence does not support strong independent R&D or innovation capability.

Customization capabilityCustomization from samples and customization from designs are explicitly available through both design services and R&D-related services. This supports the supplier’s ability to handle customer-specific requirements, although no evidence is provided regarding production scale or technical complexity.

Client casesThe supplier states that it has become a fixed raw-material supplier to Panasonic, Toyota, Honda, IKEA, and Komatsu, and reports that 90% of total sales are exports. These named customer claims provide positive case evidence, but the slices do not include order scope, duration, product details, or independently verifiable references.

Product Q&A

Q:What is the difference between ASTM A312 and ASTM A213 stainless steel pipe?

ASTM A312 covers seamless and welded stainless steel pipe for general process and high-temperature service. ASTM A213 is specifically for seamless ferritic and austenitic boiler, superheater, and heat exchanger tubes. Both standards are commonly specified for industrial piping, with A213 having tighter dimensional and testing requirements for heat exchanger applications.

Q:Why should I choose TP321 over TP304 for a high-temperature application?

TP321 stainless steel pipe is titanium-stabilized, which prevents chromium carbide precipitation at grain boundaries during welding or service between 500 Celsius and 900 Celsius. Standard TP304 can suffer weld decay and intergranular corrosion in this temperature range. For heat exchangers, superheaters, and refinery process piping operating above 500 Celsius, TP321 provides significantly longer service life.

Q:What makes S30815 (253MA) different from standard 310S stainless steel pipe?

S30815 (253MA) is a high-temperature austenitic stainless steel with additions of cerium and nitrogen. It offers oxidation resistance up to 1150 Celsius, significantly higher than 310S, along with better creep strength and resistance to thermal cycling. It is used in furnace radiant tubes, bell furnace components, and other extreme high-temperature applications where 310S would fail prematurely.