Crane RailTechnical Specification

Mass permetre

Area of crosssection

Moment of inertialx-x

Moment of Inertialy-y

SectionModulusZx-x

SectionModulusZy-y

kg/m cm2 cm4 cm4 cm3 cm3

A65 43.1 54.9 319 606 72.23 69.43

A75 56.2 71.6 531 1011 106.77 101.02

A100 74.3 94.7 856 1345 165.56 126.30

A120 100.0 127.4 1361 2350 240.23 213.15

A150 150.3 191.4 4373 3805 573.28 331.99

Crane rail 87* 86.8 110.5 3030 962 394.69 126.30

Crane rail 89 kg/m 89.8 114.4 1502 1434 246.28 161.13

Crane rail 125 kg/m 124.5 159.6 3821.3 1911.5 502.8 273.1

Properties

* Also referred to as MRS87a

We also have scope to produce the American Range rails including CR104, CR105, CR135, CR171 & CR175 and the Special Rails

MRS73, MRS86, MRS125, MRS192, MRS221, AS86, CR73, CR100, CRS140, JKL55, SP100 & SP120.

1 Scope

This specification describes the technical requirements for the supply of crane rails by British Steel. They are available in the

following sizes with guideline references relating to the sketch below:

Illustration of a Crane Rail Cross Section

1 Scope

British Steel Special Profiles are fully approved to ISO 9001

and ISO 14001 standards for Quality Management and

Environmental Management respectively.

The entire manufacturing and inspection process is fully

compliant with all British Steel Quality Management Systems,

Codes of Practice and Working Procedures. The Quality

Management System is independently audited and approved

by Lloyds Register of Quality Assurance on an ongoing basis.

Although not directly related to crane rails, the mill producing

this product also manufactures significant volumes for marine

grade products and as such the quality control systems are

heavily audited by numerous external inspectorates.

X

a top

a bo

tto

m

a BA

SE

X

Y

BASE area

BASE radius

Centroid

Y

CONTENTS

1 Scope 03 2 Quality assurance 03 3 Steel-making process 04 4 Rolling process 04 5 Chemical composition 04 6 Mechanical testing 04 7 Dimensions and tolerances 04 8 Surface quality 05 9 Marking 05 10 Bundling 05 11 Certification 05 12 Appendices 06

3SPECIAL PROFILES2 CRANE RAIL

3 Steel-making process

All steel is made by the basic oxygen process (BOS) and is continuously cast to bloom using a clean steel process.

All material is supplied fully silicon-killed.

4 Rolling process

All material is hot rolled and is supplied in the as-rolled metallurgical delivery condition.

5 Chemical composition

Crane rail is currently available in the following analysis ranges in line with DIN 536-1, with the scope and desire to develop new

grades as the market requires.

C Si Mn P S V

690 Min 0.40 - 0.80 - - -

Max 0.60 0.35 1.20 0.045 0.045 -

A100 Min 0.60 - 0.80 - - -

Max 0.80 0.50 1.30 0.045 0.045 -

90V Min 0.50 - 0.80 - - 0.06

Max 0.70 0.50 1.40 0.030 0.030 0.20

Ladle Analysis

6 Mechanical testing

Tensile properties are determined in accordance with EN10002-1, using turned longitudinal tensile specimens taken

from the head of the rail at a frequency of 1 / 30 t rolled. The minimum strength requirements are as follows:

Grade Minimum Yield (MPa) Minimum UTS (MPa)

690 355 690

880 440 880

90V 540 880

Mechanical Properties

7 Dimensions and tolerancesRails are supplied as standard at 12m lengths, and in 11.8m or 11.95m for containers.

Other non-standard lengths are available upon request.

• Cutting tolerance -0 + 100 mm.

• Straightness tolerance 1.5 mm/m maximum, in both the horizontal and vertical directions.

• All saw rags and burrs will be removed.

• End squareness will be 1 mm in any direction.

• Twist 0.5°/m max.

• The central point of the head on Crane Rail 87, when taken as a full cross section, shall not vary by more than

2.5mm in either direction.

8 Surface quality

Imperfections in the surface are considered acceptable at

0.35 mm deep for the rail running surface, and 1 mm deep

for the rest of the rail. There shall be no more than three

acceptable imperfections per 12m rail length.

Dressing of surface imperfections:

Imperfections exceeding the limits above shall be dressed

out. Any protrusions affecting the fit of the fishplate shall

be dressed to shape. If the imperfection depth cannot be

measured it shall be investigated by depth proving, and

subsequently dressed to the criteria below, using a rotary

burr, lamellar flap tool or grinding belt, providing the work is

contour-blended.

Dressing will not be deeper than 0.35 mm for the rail

running surface, and 1 mm for the rest of the rail. A

maximum of one defect per 12m rail length shall be dressed

or proved. In the case of longitudinal guide marks, there

shall be a maximum of two at any point along the length

of the rail, to the depth limits specified above, but no more

than one of these shall be on the rail running surface.

Recurring guide marks along the same axis are taken as a

single guide mark. No sharp edges are permitted on guide

marks.

9 Marking

Crane rails are hard stamped with individual bar numbers

on the foot of the rail and one label per bundle. Additional

marking is available upon agreement. All crane rails are

branded with SK - UK.

10 Bundling

Bundles are built with signode-type metal banding as

required. All bundles are built up with the same advised cut

length. Maximum bundle weight and bundle configuration

can be set by agreement.

11 Certification

All Inspection Certificates will be issued in full accordance

with EN10204 Type 3.1 requirements. This will include:

• Purchase Order Number.

• Cast Number.

• Ladle analysis details as specified in Section 5 above.

• Mechanical properties.

- Ultimate tensile strength is quoted as standard.

- Yield strength is supplied for 90V chemistries,

or if requested at point of order.

4 CRANE RAIL 5SPECIAL PROFILES

12 Appendices

Appendix 1: Crane Rail A65

‘A’ = To be within

1.0mm of ‘B’

Mass/M = 43.10 kg

Appendix 2: Crane Rail A75

75±0.8

85±

1

R 500

45

90

22

15.4

11

R 8

35

39

.5

R 8

R 6

R 6

R 6R 1.5

Flat to 0.8 concavity

‘A’‘ B’

200+2

65±0.8

75±

1

R 400

38

78

20

14 10

R 6

30 34

R 6

R 5

R 5

R 5R 1.5

Flat to 0.6 concavity

‘A’‘ B’

175+1.54

‘A’ = To be within

1.0mm of ‘B’

Mass/M = 56.20 kg

Appendix 3: Crane Rail A100

100±1

R 500

60

100

95±

1.5

23

16.5

12

R 10

40

45.

5

R 8

R 6

R 6

R 6R 1.5

Flat to 0.8 concavity

‘A’‘ B’

200+2

Appendix 4: Crane Rail A120

‘A’ = To be within

1.5mm of ‘B’

Mass/M = 74.30 kg

120±1

R 600

72120

105±

1.6

30

1420

R 10

47.

5

55.5

R 10

R 6

R 10

R 6R 1.5

Flat to 1.0 concavity

‘A’‘ B’

220+2

‘A’ = To be within

1.5mm of ‘B’

Mass/M = 100.33 kg

Appendix 5: Crane Rail A150

150±1

R 800

80

150

±1.

5

31.

5

14

R 10

50 64

.5

R 30

R 10

R 30

R 6R 1.5

Flat to 1.0 concavity

‘A’‘ B’

220+2

Appendix 6: Crane Rail 87 (MRS87A)

‘A’ = To be within

1.5mm of ‘B’

Mass/M = 150.3 kg

101.6±1

34.9

R 8±1.5

152±

0.8

152.4±2.4

31.

75

50.8

R 19.05

R 31.75

12º

12ºR 1.5

Flat to 1.0 concavity

R 12.7

R 7.94

Appendix 7: Crane Rail 89 kg/m

Mass/M = 86.8 kg

‘A’ = To be within

1.5mm of ‘B’

Mass/M = 89.8 kg

102±1

51±1

106

114

±1

178±3

89±1.5 89±1.5

16

R 10

51

R 10

26.6º

8.1º

2R 10

R 5

Flat to 1.0 concavity

‘A’‘ B’

R 10R 10

Will vary fromsharp to R 5

Appendix 8: Crane Rail 125 kg/m

Mass/M = 125.145 kg140+2

140

R 3.2±1

R 30

64±2

R 10±3

6

6

1

1

152±

2

82

35

0x =

76

R 3.2

R 30

R 10

35±

1

6 CRANE RAIL 7SPECIAL PROFILES

SPPB:ENG:060516

BRITISHSTEEL.CO.UKPO Box 1, Skinningrove, Saltburn by the Sea, TS13 4ET, United Kingdom+44 (0)1287 593124 E | specialprofiles@longssteel.com

AT

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Care has been taken to ensure that the contents of this publication are accurate, but British Steel Limited and its subsidiaries and associated undertakings (having the meaning set out in the Companies Act 2006) do not accept responsibility or liability for errors or information that is found to be misleading.

Copyright British Steel 2016

British Steel UK Limited is registered in England under number 09438207 with registered office at Administration Building, Brigg Road, Scunthorpe, DN16 1BP.