SMLS steel pipes for Mechanical Use

SMLS steel pipes for Mechanical Use

Mechanical Tubes

Mechanical steel tubes are used in machined or formed parts of industrial, automotive, farm machinery, aircraft, transportation, materials handling, and household equipment.

Seamless mechanical tubing is furnished in both cold-drawn and hotfinished form in a wide range of sizes, from 1.375" to 7.750" OD and from 0.188" to 1.625" wall thickness, as shown on the chart to the right.

Standard

Cold drawn seamless mechanical tubing Tolerances

The tolerances for cold drawn seamless mechanical tubing can vary depending on the specific standards and requirements.

Diameter

OD Size Range Inches,Inclusive

WallPercent of OD

 OD

Inches

 ID

Inches

Quenched&TemperedOD & ID

± Inches

OD Size Range mm ,Inclusive

 WallPercent of OD

OD

Inches

ID

Inches

Quenched&TemperedOD & ID

± mm

Over

Under

Over

Under

Over

Under

Over

Under

0.500-1.699

1.700-2.099

2.100-2.499

All All All

.005

.006

.007

.000

.000

.000

.000

.000

.000

.005

.006

.007

.015

.020

.023

12.70- 43.16

43.17- 53.32

53.33- 63.48

All All All

0.13

0.15

0.18

0.00

0.00

0.00

0.00

0.00

0.00

0.13

0.15

0.18

0.38

0.51

0.58

2.500-2.899

2.900-3.299

3.300-3.699

3.700-4.099

All All All All

.008

.009

.010

.011

.000

.000

.000

.000

.000

.000

.000

.000

.008

.009

.010

.011

.025

.028

.030

.033

63.49- 73.64

73.65- 83.80

83.81- 93.96

93.97-104.12

All All All All

0.20

0.23

0.25

0.28

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.20

0.23

0.25

0.28

0.64

0.71

0.76

0.84

4.100-4.499

4.500-4.899

4.900-5.299

5.300-5.549

All All All All

.012

.013

.014

.015

.000

.000

.000

.000

.000

.000

.000

.000

.012

.013

.014

.015

.036

.038

.041

.044

104.13-114.28

114.29-124.44

124.45-134.60

134.61-140.95

All All All All

0.30

0.33

0.36

0.38

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.30

0.33

0.36

0.38

0.91

0.97

1.04

1.12

5.550-5.999

Under 6

6 to 71/2Over 71/2

.010

.009

.018

.010

.009

.000

.010

.009

.009

.010

.009

.009

.047

.047

.047

140.96-152.38

Under 6

6 to 71/2Over 71/2

0.25

0.23

0.46

0.25

0.23

0.00

0.25

0.23

0.23

0.25

0.23

0.23

1.19

1.19

1.19

6.000-6.499

Under 6

6 to 71/2Over 71/2

.013

.010

.020

.013

.010

.000

.013

.010

.010

.013

.010

.010

.050

.050

.050

152.39-165.08

Under 6

6 to 71/2Over 71/2

0.33

0.25

0.51

0.33

0.25

0.00

0.33

0.25

0.25

0.33

0.25

0.25

1.27

1.27

1.27

6.500-6.999

Under 6

6 to 71/2Over 71/2

.015

.012

.023

.015

.012

.000

.015

.012

.012

.015

.012

.012

.057

.053

.053

165.09-177.78

Under 6

6 to 71/2Over 71/2

0.38

0.30

0.58

0.38

0.30

0.00

0.38

0.30

0.30

0.38

0.36

0.30

1.45

1.35

1.35

7.000-7.499

Under 6

6 to 71/2Over 71/2

.018

.013

.026

.018

.013

.000

.018

.013

.013

.018

.013

.013

.065

.056

.056

177.79-190.48

Under 6

6 to 71/2Over 71/2

0.46

0.33

0.66

0.46

0.33

0.00

0.46

0.33

0.33

0.46

0.33

0.33

1.65

1.42

1.42

7.500-8.000

Under 6

6 to 71/2Over 71/2

.020

.015

.030

.020

.015

.000

.020

.015

.015

.020

.015

.015

.070

.060

.060

190.49-203.20

Under 6

6 to 71/2Over 71/2

0.51

0.38

0.76

0.51

0.38

0.00

0.51

0.38

0.38

0.51

0.38

0.38

1.78

1.52

1.52

Wall Thickness

Wall ThicknessPercent of OD Maximum Percent Over & Under Nominal Wall ThicknessPercent of OD Maximum Percent Over & Under Nominal
Under 1.499” ID 1.500” ID & Over Under 38.07mm ID 38.07mm ID & Over
Under 10 10.0 7.5 Under 10 10.0 7.5
10 to 25 10.0 6.0 10 to 25 10.0 6.0
Over 25 12.5 7.5 Over 25 12.5 7.5

Process of meachanical tubing

process of meachanical tubing

Mechanical tubes are used for mechanical and light gauge structural applications.

Mechanical tubes are produced to meet specific end use requirements, specifications, tolerances and chemistries.

Tubing used for mechanical and light gauge structural applications. This allows for more specific property uniformity throughout the tube compared to standard pipe or tube. While Mechanical tube can be produced to standard specifications when requested, it is often produced to “typical” properties that focus mainly on the yield strength for a precise size and wall thickness. In some applications with severe forming, yield strength may not even be specified and the mechanical tube is produced to be “fit for use”. Mechanical tubing encompasses a wide range of both structural and non-structural applications.

At SunnySteel, we apply our metallurgical and production expertise to manufacture high-performance seamless mechanical tube products to meet your needs.

This includes carbon, alloy and even custom steel grades; annealed, normalized and tempered; stress relieved and stress free; and quench and tempered.

Seamless Steel Tubes for Mechanical and Automobile usage for Backbone of Automobile and rear axle tube, manufacturing and processing of precision equipments, instruments and apparatus.

Sunny Steel supply a 1/2 million foot inventory of carbon steel pressure tubing including boiler tubes, condenser tubes and heat exchanger tubes all made in the China.

Our carbon steel pressure tubing inventory is manufactured in accordance with ASME SA-178 A and/or ASME SA-214 in diameters of 3/4″ through 4”.

Application

Backbone of Automobile and rear axle tube
Manufacturing and processing of precision equipments, instruments and apparatus
Delivery Condition: GBK, BKS, BK, BKW, NBK

Inspection and Test

Chemical Composition, Mechanical Properties, Visual and Dimension Test, NDT, Grain Size Test

Surface treatment

Oil-dip, Varnish, Shot Blasting

Size Range

Tubular products seamless mechanical tubing is furnished in both cold-drawn and hot finished form in a wide range of sizes, from 1.375″ to 7.750″ OD and from 0.188″ to 1.625″ wall thickness.

Minimum Quantities

Special Configurations

Tubular Products special seamless tubing configurations start with the highest quality steels. Grade, chemical analysis and surface condition are carefully considered, and production processes are tailored to achieve the best tubing for the end use.
The configurations are formed from round tube by cold drawing. The tube is drawn over a shaped mandrel or through a shaped die, or both. Improved tolerances, finishes and mechanical properties result.

Seamless and welded tubes for mechanical and general engineering applications. Tubes for construction and structural purposes such as civil structures, foundations, etc.

ASTM standards for Mechanical tubing

Abbr. Corresponding Application
A511 ASTM A511 / A511M Specification for Seamless Stainless Steel Mechanical Tubing
A512 ASTM A512 / ASME SA512 Specification for Cold-Drawn Buttweld Carbon Steel Mechanical Tubing
A513 ASTM A513 / A513M Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
A519 ASTM A519 / A519M Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
A554 ASTM A554 Specification for Welded Stainless Steel Mechanical Tubing

Mechanical Tubing vs. Structural Tubing

In the world of tubing, things can get a bit confusing. With many different types of tubing for different applications, terms and meanings can be a bit ambiguous. With this in mind, we’ve set out to explain the difference between structural tubing and mechanical tubing.

Mechanical Tubing

tubing used for mechanical and light gauge structural applications. Mechanical tube is produced to meet specific end use requirements, specifications, tolerances and chemistries. This allows for more specific property uniformity throughout the tube compared to standard pipe. While Mechanical tube can be produced to standard specifications when requested, it is often produced to “typical” properties that focus mainly on the yield strength for a particular size and wall thickness. In some applications with severe forming, yield strength may not even be specified and the Mechanical tube is produced to be “fit for use”.

Structural Tubing

tubing used for structural applications. Standard strength requirements of the tube help dictate applications for which certain tubing is most appropriate. Structural tube is often referred to as hollow structural sections or HSS.

Available shapes

Mechanical tubing encompasses a wide range of both structural and non-structural applications.

Mechanical Tube

  • Square / Rectangle
  • Round
  • Custom Shapes

Structural Tube

  • Square
  • Rectangle
  • Round

Applications

Mechanical Tube

  • Solar Racking
  • Agricultural and dairy products
  • Greenhouse structures and equipment
  • Playground and recreational equipment
  • Conveyor rollers
  • Carports and metal buildings
  • Trailers
  • Appliances
  • Canopies and Shade Structures
  • Satellite dish supports
  • Vinyl stiffening tubes
  • Miscellaneous product applications

Structural Tube

  • Buildings
  • Bridges
  • Towers
  • Cranes
  • Sign supports and poles
  • Off-shore production and drilling platforms
  • Roll-over protective structures (ROPS)

Specifications

Mechanical Tube

At Wheatland Tube, our mechanical tubing is manufactured to typical Mechanical tube properties or in accordance with ASTM A500 and A513 Types 1 and 2 specifications.

Our Mechanical tubing is not limited to these specifications and can be produced to specific customer requirements when appropriate.

Additionally, our in-line galvanized products comply with A1057 and A787 coating specifications and provide a synergistic triple-coat process for enhanced product life.

Structural Tube

While specifications will vary based on design (and from manufacturer to manufacturer), some common specifications of structural tubing include ASTM A500 Grade B and C, A847, A1065, and the recently approved ASTM A1085.

In both cases of “Structural” or “Mechanical” tubing, these products are ordered to a specific outside dimension (OD) and “gauge” or wall thickness. This varies from “pipe” products which are ordered based on inside dimensions (ID) and often pipe “schedules” that determine the wall thickness. Pipe and conduit products should not be used in structural applications as their strength properties may not be produced to standard structural specifications or meet specified engineering requirements.

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.