stainless steel hollow bar ASTM A511 mechanical tube mechanical tubing 304/304L 316/316L

500-999 Kilograms
1000-2999 Kilograms
>=3000 Kilograms
Min. Order
500 Kilograms
Choose your specifications
Company Information

Wenzhou Walmi Stainless Steel Co., Ltd.

CN Trading Company
Response Time
Response Rate:
2 Years Paid Supplier Gold Supplier Onsite Check
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Quick Details

Port: Ningbo Port/Shanghai Port
Payment Terms: L/C,T/T,Western Union,MoneyGram,paypal
Supply Ability: 1000 Ton/Tons per Month
Place of Origin: Zhejiang China
Tolerance: ±10%
Grade: 304/304L 316/316L
Model Number: WM-HB
Payment terms: LC TT
Processing Service: Bending,Welding,Decoiling,Punching,Cutting,Moulding
MOQ: 1 Piece
Certification: ISO,EN10214 3.1
Surface: Picked
Brand Name: Walmi
Type: Seamless
Application: Machinery industry,etc
Welding Line Type: Seamless
Steel Grade: 300 Series
Packaging Detail: * Plywood case packing for industrial stainless steel piping products LCL shipped via ocean. * PVC or Woven bags packing for industrial stainless steel piping products FCL shipped via ocean. * Plastic bags packing per tube, plywood case packing outside for sanitary products.
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Product Description

1. Grade: 304/304L 316/316L

2. Size:OD 32-420mm   WT 5.5-60mm

3. Standard: ASTM A511

4. Certification: ISO9001, EN10204:2004 3.1

Product Name
304/304L 316/316L stainless steel hollow bar ASTM A511 mechanical tube mechanical tubing
stainless steel
Delivery Condition
Solution treat & water quench
304/304L 316/316L
Pickled & Annealed
Machinery industry;Etc
Products Show
Value-added Service
Cutting Service


Beveling  End Service

Quality Control

Visual & Surface Quality Inspection

Dimension Inspection

100% PMI Inspection

Flattening Test

Tensile Test

Flaring Test

Eddy Current Test

Ultrasonic Test

Hydrostatic Test

Packing & Delivery

1. Plywood case packaging for LCL
2. PVC Packing for FCL
3. Woven bags packing for FCL
4. Plastic bags packing for sanitary tube
5. Square or Hexagonal Packing
6. Wooden Pallet Packing

Loading into container

pipes inside the container

Loading in truck

One-stop Service
One-stop service for industrial stainless steel Pipes, Tubes, Fittings, Flanges and Valves.


Good Quality Makes Us Different!

* All Walmi products are produced by ISO9001 certified mill !

* All Walmi products are EN10204:2004 3.1 Certified !

* Non-destructive Testing Report are available if required !

* Heat Treatment Report are available if required !

* Mechanical Testing Report are available if required !

Warranty Policy

(1) All goods from Walmi Stainless Steel will be produced and tested strictly in accordance with the relevant standards, drawings and customer requirements to promise good quality.
(2) All piping products from Walmi Stainless Steel will be new and unused.
(3) All stainless steel pipes, tubes, butt-welding fittings, forged flanges, valves and other piping accessories from Walmi can enjoy 12 months or more free warranty, lifelong paid maintenance and replacements.
(4) Below conditions are not covered by our free warranty
* Caused by wrong use environment.
* Caused by wrong welding.
* Caused by rude transportation or handling.
* Caused by natural disaster
* Other related material damages caused by buyer or end users.