ASTM A312 TP304L Stainless Steel Welded Pipe for Sanitary Pipelines

• Customization: Available
• Application: Chemical Industry, Construction Industry, Oil and Gas Industry, Water Treatment Plants, Marine and Offshore Applications
• Certification: CE, ISO9001, SGS, TUV
• Model NO.: Welded pipe
• Elongation: ≥35
• Length: Custom Length
• Outer Diameter: DN6 ~ DN1200
• Schedule: ASTM A312/A312m
• tensile strength: ≥ 515 MPa
• Wall Thickness: Sch5s-Sch160, Xs,Xxs/Custom
• Size: 1/8"-48", DN6-DN1200
• Grade: Tp316L, Tp347, TP304,Tp321,S31025, T5,T11,T91 etc
• Thickness: Sch5-Sch160
• Shape: Round/Customized
• Process: Cold Drawn
• Tolerance: +/-5%
• End: Plain End/Bevel End
• Usage: Heat Exchangers, Condensers, and Similar Heat Tran
• Test: BV, SGS Is Available
• Stock: Size Can Customized
• Processing: Welded
• Packing: Standard Export Packing
• Delivery Time: 7-30 Days
• MOQ: 1 Ton
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• HS Code: 730611
• Production Capacity: 10000 Ton/Year

Product Description

ASTM A312 TP304L Stainless steel welded pipe for Sanitary pipelines

ASTM A213/A213M is a standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. It applies to high-temperature service in power plants, refineries, and similar industries.

Specification

Main Stainless Steel & Alloy Grades

 Ferritic Grades  
- T5, T9, T11, T12, T22 (e.g., T22: 2.25Cr-1Mo)  
- T91, T92 (9Cr-1Mo-V-Nb)  

 Austenitic Grades  
- TP304/304H, TP316/316H (18Cr-8Ni)  
- TP321/321H (Ti-stabilized)  
- TP347/347H (Nb-stabilized)  
- S31025 (Super 304H), S31254 (6Mo super austenitic)

Manufacturing & Heat Treatment

- Tubes are seamless, made by hot-working or cold-working.  
- Heat treatment (e.g., austenitic grades are solution-annealed; ferritic grades are normalized and tempered).

Ordering Information

Purchasers must specify:  
- Quantity (length, number of pieces)  
- Material grade (e.g., T11, T22, TP304H)  
- Dimensions (OD, wall thickness)  
- Condition (e.g., annealed, cold-worked)  
- Test requirements (hydrostatic/nondestructive testing)  
- Certification or inspection needs  
- Any additional requirements (e.g., special tolerances)

Appearance inspection

Package

Loading and delivery

Technical Specifications

Manufacturing & Heat Treatment
- Tubes are seamless, made by hot-working or cold-working.  
- Heat treatment (e.g., austenitic grades are solution-annealed; ferritic grades are normalized and tempered).

Chemical Composition

-- Strict limits for C, Mn, P, S, Si, Cr, Ni, Mo, etc.  
- H-grade variants (e.g., TP304H) have higher carbon for creep resistance.

Mechanical Properties

- Tensile strength, yield strength, elongation per grade (e.g., TP304H: ≥515 MPa tensile).  
- Hardness limits (e.g., ≤90 HRB for austenitic grades).

Ferritic and Martensitic Grades (Low-Alloy Steels for High-Temperature Service)
Grade | UNS No.		Chemical Composition (Key Elements, %)					Mechanical Properties
		C	Mn	Si	Ti	Nb	Tensile	Yield	Elong
T5       K51545	1.0Cr-0.5Mo	≤0.15	0.30-0.60				≥415 MPa	≥205 MPa	≥30%
T9       K90941	9Cr-1Mo	0.15-0.25		0.25-1.0			≥585 MPa	≥380MPa	≥20%
T11     K11597	1.25Cr-0.5Mo-Si	≤0.15					≥415MPa	≥205 MPa	≥30%
T12     K11562	1.25Cr-0.5Mo	≤0.15					≥415MPa	≥205 MPa	≥30%
T22    K21590	2.25Cr-1Mo	≤0.15					≥415MPa	≥205 MPa	≥30%
T91    K90901	9Cr-1Mo-V-Nb	0.08-0.12					≥585 MPa	≥415 MPa	≥20%
T92   K92460	|9Cr-0.5Mo-2W-V-Nb	0.07-0.13					≥515 MPa	≥205 MPa	≥35%
Austenitic Grades (Stainless Steels for Corrosion & Heat Resistance)
Grade | UNS No.		Chemical Composition (Key Elements, %)					Mechanical Properties
		C	Mn	Si	Ti	Nb	Tensile	Yield	Elong
TP321 | S32100	18Cr-10Ni-Ti	≤0.08			≥5xC		≥515 MPa	≥205 MPa	≥35%
TP321H | S32100	18Cr-10Ni-Ti	0.04-0.10					≥515 MPa	≥205 MPa	≥35%
TP347 | S34700	18Cr-10Ni-Nb	≤0.08				≥10xC	≥515 MPa	≥205 MPa	≥35%
TP347H | S34709	18Cr-10Ni-Nb	0.04-0.10					≥515 MPa	≥205 MPa	≥35%
S31025 (Super 304H)  | S31025	18Cr-9Ni-3Cu-Nb	0.07-0.13					≥590 MPa	≥240 MPa	≥35%
S31254 (6Mo Super Austenitic) | S31254	20Cr-18Ni-6Mo-0.2N	0.02					≥650 MPa	≥300 MPa	≥35%
Inspection & Testing Requirements - Hydrostatic testing (mandatory, unless replaced by nondestructive testing).   - Nondestructive testing (NDT) (eddy current, ultrasonic, or pneumatic).   - Flattening, flare, or bend tests (if specified).   - Grain size verification for H-grades.   - Intergranular corrosion test (for austenitic grades, if required).

Typical Applications

Usage: Suitable for

Corrosion-resistant piping systems 
Chemical processing and petrochemical plants 
Food and beverage processing equipment 
Marine and offshore applications 
Water treatment and seawater piping 
Heat exchangers and boilers 
General process piping 

After Sales Service

Standard Warranty: 36 months.
Extended Warranty: Optional coverage up to 12 months.
Global Support: 24/7 technical assistance and spare parts supply.

Company Profile

EZ Steel Industrial Co., Ltd

EZ Steel Industrial Co.,Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.

EZ Steel & Metal- Your Tubing Expert for a Wise Solution

First-class brand, First-calss service, First-class value

Why Choose Us?

Other Products

Full-Cycle Manufacturing Expertise

Our in-house steel pipe production facilities enable strict quality control from raw material selection to finished products.

Comprehensive Inventory Management

We maintain a strategic stock of carbon steel, alloy steel, and stainless-steel pipes across common grades (ASTM A106, A53, A312, etc.)

Project-Centric Package Solutions

Beyond standalone pipe supply, we provide turnkey material packages including valves, flanges, fittings, and specialty alloys. 

Technical Excellence Across the Value Chain

Quality Assurance: ISO 9001-certified laboratories conduct rigorous mechanical tests (hydrostatic, ultrasonic, PMI) and issue mill test certificates.

Carbon and carbon alloy steel:

 pressure tubes, pipeline works, structure works

Stainless steel pipes and fittings:

pressure tubes, pipeline works, structure works

Copper and Nickel alloy pipe:

for petrochemical facilities, Marin and ship-building and power plant & aerospace

Heat Efficiency tubes: U bend tube and Finned tube

Pipe fittings: BW fittings, SW fittings, Threaded fittings
Pipe Flanges: Steel flanges and copper Nickel flanges

Gasket, Stud Bolt & Nut
Industrial Valves

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 7–30 days; customized units require 30–45 days.

Q: Can I request a customized products size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, Form A/E, FTA, LPSR, TUV & SGS certificate, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.

 
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