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SS Grade 50
Specification details for SS Grade 50

EN_US-Product-Hot-Rolled-Structural steel-All grades Overview TSUK

Overview

Applications

  • Automotive wheel rims and chassis components
  • Construction and building
  • Cold formed sections
  • Pressure vessels
  • Transport
  • Tubes and pipes
  • Warehouse shelving
  • Lifting and excavating equipment


Relationship with standards

Hot-rolled structural steel complies with standards ASTM A1011 and A1018 and is available in the grades shown in the table below

Grade
SS Grade 30
SS Grade 331
SS Grade 36 type 1
SS Grade 36 type 2
SS Grade 401
SS Grade 45 type 11
SS Grade 45 type 21
SS Grade 50
Grades 45 and 50 only available in ASTM A1011.
1. Produced in the Netherlands.  For further information click here.

The CE mark

The CE mark is a symbol devised by the European Council to signify that a product meets the conditions of the applicable council directives. These conditions aim to ensure that the product is reliable and safe. Products that are “produced for incorporation in a permanent manner in construction works” fall under the Construction Products Directive. Hot-rolled steels covered by EN 10025: 2004 are used in such “works” and are therefore covered by the directive. For these products, Tata Steel’s test certificates bear the CE mark and Tata Steel has issued a certified Declaration of Conformity. All the structural products produced by Tata Steel in Europe are CE-marked except for S185+AR.

EN_US-Product-Hot-rolled-All Grades Surface aspects Supply Conditions TSUK

Supply conditions

Hot-rolled steel can be supplied with these product conditions and finishes and with this surface treatment:

Side/surface condition non-pickled pickled pickled and oiled
Mill edges Yes Yes Yes
Trimmed edges - Yes Yes
Trimmed edges available in thicknesses up to 0.25 inch.
The steel grades shown on the following pages belong to the standard range offered by Tata Steel.
Please contact us regarding other specifications we may have that meet your needs. You can find details on how to get in touch with us in 'Contact Us' below.
 

Surface aspects

Description Availability
Surface finish Coils are available in non-pickled and pickled finish for most grades. 
For grade specific availability, please refer to the dimensional tables.
Oiling Pickled finish is available with rolling or preservative oil applied. 
Oil weight normally 55 - 275 mg/ft2

Alternative oiling ranges are available.
Please contact us for details. You can find details on how to get in touch with us in 'Contact Us' below.

 

EN_US-Product-Hot-Rolled-Structural steel-SS Grade 50-Properties TSUK

Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken longitudinal to the rolling direction.
 

ASTM A 1011-15 Grade SS Grade 50
Yield strength (ksi)   50
Tensile strength (ksi)   65
Elongation (%)  t < 0.064 11
  0.064 ≤ t < 0.097 16
  0.097 ≤ t < 0.230 17
  0.230 ≤ t -
Elongation after fracture A uses test piece length L0 = 2 inches..
t - material thickness in inch.
Grade 50 only available in ASTM A1011.
Minimum values unless shown otherwise.
 

Chemical composition 

Structural steel meets the requirements of the heat analysis in the standard, as shown in the table below.
The steel grades supplied by Tata Steel are always fully killed. Tata Steel does not supply steel with increased copper content.

ASTM A1011-15 Grade SS Grade 50
C Max. 0.25
Mn Max. 1.35
P Max. 0.035
S Max. 0.04
Si Max. -
N Max. -
ASTM A1018 does not include a Grade 50.
 

EN_US-Product-Hot-Rolled-Structural steel-SS Grade 50-Dimensions TSUK

Dimensions

Dimensions

Dimensional capability (non-pickled)

Dimensions in inches.

ThicknessMax. width
From - up toSS Grade 50
0.070 - 0.08049
0.080 - 0.10051
0.100 - 0.12049
0.120 - 0.50063
The minimum width is 36 inch.

Dimensional capability (pickled)

Dimensions in inches.

 

ThicknessMax. width
From - up toSS Grade 50
0.070 - 0.10049
0.100 - 0.20060
The minimum width is 36 inch.

For products produced in the Netherlands click here.

Tolerances on thickness

Tolerances for wide strip and slit wide strip comply with standard ASTM A568: 2015 and A635: 2015.
Tighter tolerances are available, please contact us. Tolerances are over, no under.

 

EN_US-Product-Hot-rolled-All grades Shape and dimensional tolerancesTSUK

Shape and dimensional tolerances

Shape and dimensional tolerances

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in ASTM A568: 2015 / A635: 2015.
Thickness tolerances over, no tolerance under.
Tighter tolerances are available as shown below:

Carbon Steel Thickness tolerances available
ASTM A 568 (2015) / A635 (2015)
20 - 40 40 - 48 48 - 60 60 - 72 >72
0.031 - 0.051 0.01 0.01 0.01 0.01 0.01
0.051 - 0.057 0.01 0.012 0.012 0.014 0.014
0.057 - 0.071 0.012 0.012 0.014 0.014 0.014
0.071 - 0.098 0.014 0.014 0.014 0.016 0.016
0.098 - 0.179 0.014 0.016 0.016 0.016 0.016
0.179 - 0.229 0.016 0.018 0.02 0.022 0.024
0.229 - 0.313 0.022 0.024 0.024 0.026 0.03
0.313 - 0.375 0.024 0.026 0.028 0.03 0.032
0.375 - 0.500 0.028 0.028 0.03 0.032 0.036
0.500 - 0.625 0.03 0.03 0.032 0.036 0.038
0.625 - 1.000 0.032 0.032 0.034 0.038 0.04

 

 

HSLA Thickness tolerances available
ASTM A568 (2015) / A635 (2015)
20 - 32 32 - 40 40 - 48 48 - 60 60 - 72 72 - 80 > 80
0.031 - 0.051 0.012 0.012 0.012 0.012 0.012 0.012 0.012
0.051 - 0.059 0.012 0.012 0.014 0.014 0.014 0.014 0.014
0.059 - 0.070 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.070 - 0.082 0.014 0.014 0.014 0.014 0.016 0.016 0.016
0.082 - 0.098 0.014 0.016 0.116 0.016 0.018 0.018 0.02
0.098 - 0.179 0.016 0.016 0.02 0.02 0.022 0.024 0.024
0.179 - 0.229 0.018 0.018 0.02 0.02 0.022 0.024 0.024
0.229 - 0.313 0.022 0.022 0.024 0.024 0.026 0.03 0.03
0.313 - 0.375 0.024 0.024 0.026 0.028 0.03 0.032 0.032
0.375 - 0.500 0.028 0.028 0.028 0.03 0.032 0.036 0.036
0.500 - 0.625 0.03 0.03 0.03 0.032 0.036 0.038 0.038
0.625 - 1.000 0.032 0.032 0.032 0.034 0.038 0.04 0.04

 

Option for maximum crown values

At the time of ordering, specific agreements can be made on the crown of hot-rolled strip.

 

Tolerances on width, edge camber and flatness

Material will be supplied conforming to the tolerances specified in ASTM A568 (2015) / A635 (2015). Width tolerances are over, no tolerance under.

Width tolerances available  
Carbon steel ASTM A568: 2015 / A635: 2015
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 0.937 0.125
30 - 35 1.125 0.187
35 - 48 1.125 0.187
48 - 50 1.125 0.25
50 - 60 1.5 0.25
60 - 65 1.5 0.312
65 - 70 1.5 0.312
70 - 78 1.5 0.312
78 - 80 1.875 0.312
80 - 82 1.875 0.375

 

Width tolerances available  
HSLA ASTM A568: 2015 / A635: 2015
Mill edge Cut edge
24 - 26 0.812 0.125
26 - 28 0.937 0.125
28 - 30 1.125 0.125
30 - 35 1.125 0.187
35 - 48 1.25 0.187
48 - 50 1.25 0.25
50 - 60 1.5 0.25
60 - 65 1.625 0.312
65 - 70 1.75 0.312
70 - 78 1.875 0.312
78 - 80 2 0.375
80 - 82 1.875 0.375

 

 

Dimensions and coil weights

Tata Steel can supply hot-rolled steels with the following minimum and maximum dimensions and weights.

Description Capability
Coil diameter inner non-pickled 30 inch
Coil diameter inner pickled 24 inch standard
30 inch on request
Tolerance on inner diameter +0/-2 inch
Coil diameter outer non-pickled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 41.5 inch
Coil diameter outer pickled and oiled Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
Max. 86 inch
Min. 65 inch
Coil weight Max. 75,000 lbs
Maximum coil weight limits can vary due to
transport limits and outer coil diameter
Some HR products may have different coil weight ranges
Minimum tonnage per order Refer to price list for order quantity details
Minimum order quantities may apply