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AISI 4140

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PRÄZI ground steel plates

Thickness
Width
(mm)
2,3 3,3 4,3 5,3 6,3 8,3 10,3 12,3 15,3 20,3 25,3 30,3 35,3 40,3 50,3 60,3 80,3
33 35 37 38 39 40 41 42 43 44 45 46 50          
43 38 39 40 41 42 43 44 45 46 47 50 52 56 62      
53 40 41 42 43 44 45 46 47 48 49 52 56 59 68 81    
63 42 43 44 45 46 47 48 49 50 51 56 62 67 74 87 95  
73 43 44 45 46 47 48 49 50 51 55 61 67 74 80 95 105  
83 44 49 50 51 52 53 55 56 57 62 68 75 80 88 104 114 175
93 46 52 53 55 56 57 58 59 60 63 70 78 84 94 111 122 186
103 47 53 55 56 57 58 59 60 62 68 75 82 88 100 119 131 198
123 49 56 59 60 61 62 63 65 72 79 86 95 104 117 137 152 229
143 51 58 62 63 64 66 67 69 76 85 94 105 114 127 151 167 255
153 52 60 63 65 67 69 70 74 82 87 97 108 119 133 158 178 271
163 53 61 65 66 69 74 82 86 101 109 120 132 140 155 182 202 308
183 57 68 69 72 77 82 87 95 104 114 129 140 151 167 194 218 329
203 60 81 88 91 92 95 97 99 110 120 135 148 161 178 209 234 361
223 63 85 94 95 97 101 102 104 114 127 140 158 172 189 222 250 382
243 65 90 98 101 102 104 108 110 119 133 148 165 180 199 235 267 403
263 68 95 103 106 108 110 114 116 125 138 154 173 190 210 247 280 430
283 70 98 109 114 115 117 121 123 129 145 162 183 199 222 261 296 446
303 75 103 114 115 117 119 122 127 133 151 169 190 208 241 275 312 477
353 81 114 127 128 131 137 145 146 163 183 204 237 252 277 326 369 552
403 88 123 139 140 144 151 155 162 175 199 223 250 275 304 357 408 615
453 95 134 149 153 154 165 173 184 210 224 262 294 311 363 426 479 700
503 101 146 164 166 168 181 194 199 223 247 276 310 341 374 441 501 753
Thickness
Width
(mm)
2,3 3,3 4,3 5,3 6,3 8,3 10,3 12,3 15,3 20,3 25,3 30,3 35,3 40,3 50,3 60,3 80,3
33 61 62 63 64 65 66 67 68 69 73 77 83          
43 63 64 65 66 67 68 69 73 75 79 84 86 92 102      
53 66 67 68 69 70 72 73 74 76 81 86 92 97 112 133    
63 69 72 73 74 75 76 77 78 79 80 93 102 112 122 145 157  
73 72 73 75 76 77 78 79 81 83 91 100 112 122 133 157 175  
83 73 82 83 85 87 88 90 91 94 102 113 123 133 148 174 189 287
93 77 86 87 90 91 92 94 95 99 105 117 130 140 155 185 204 308
103 79 88 91 92 93 95 98 99 102 113 125 137 147 167 198 218 329
123 82 92 97 98 99 102 104 109 119 131 144 158 173 194 228 253 382
143 85 96 102 103 104 110 111 116 126 141 156 175 189 210 251 278 419
153 87 99 105 108 112 115 117 122 136 146 162 180 199 221 263 295 446
163 90 101 109 110 115 122 136 144 168 181 200 220 234 258 303 335 509
183 95 115 116 119 128 136 145 157 174 189 214 233 252 277 324 362 546
203 99 135 147 150 152 157 162 165 183 201 225 245 268 295 348 390 594
223 104 143 155 158 162 168 170 173 189 210 234 263 287 314 369 415 626
243 109 149 164 168 171 174 179 183 199 222 246 275 299 331 392 444 668
263 113 157 172 176 179 183 189 191 206 231 257 289 316 349 413 467 711
283 117 164 181 189 193 198 202 205 214 240 270 305 331 369 435 492 742
303 123 172 189 191 194 200 204 210 221 251 281 316 347 402 457 520 785
353 134 189 210 212 218 228 240 243 271 304 340 395 419 462 543 615 923
403 147 205 232 234 239 251 258 269 292 331 371 416 457 505 594 679 1018
453 158 223 249 255 257 274 289 306 350 374 437 490 518 605 709 797 1166
503 168 242 273 275 278 300 324 331 371 413 459 517 568 623 735 835 1251

AISI 4140 Data sheet download

Heat-treatable steel More Information

Technical delivery terms PRÄZI Flachstahl

( Dimensions in mm )

Range of application:
These specifications apply for fine-machinedbars in the followngi ranges of application:

  • from 10 to 500 mm width for flat steel dimensions
  • from 1 to 100 mm thickness for flat steel dimensions
  • 500, 1000 and 1030 mm length for flat steel dimensions
  • from 4 to 150 mm side length for square steel dimensions.
  • It does not apply to:
  • bright flat steel according to DIN EN 10278
  • bright squares according to DIN EN 10278
  • cold-rolled steel strip according to DIN EN 10140

Concept
Precision flat steel and square steel are sharp-edged bars with fine
machined longitudinal surfaces free of decarburisation.

Designation
The following are to be indicated in the designation in the seuqence given below:

  • Name (PRÄZI Flachstahl)
  • Delivery conditions (DIN 59350,mit Bearbeitungsaufmaß)
  • Abbreviation or material number
  • Nominal sizes (flat steel: width, thickness, length; square steel: thickness, length)

Example:

PRÄZI Flachstahl DIN 59350
1.2842 150 x 30 x 100 mm

PRÄZI Flachstahl mit Bearbeitungsaufmaß
1.2436 Vkt. 20,4 x 1030 mm

Dimensions, permissible dimensional deviations and deviations of form
The permissible deviations from the nominal sizes are as follows:

For PRÄZI- flat steel according to DIN 59 350

Thickness grounded / fine-machined Tol.: +0,05 / - 0 mm
Width grounded / fine-machined Tol.: +0,2 / - 0 mm

Length, one fine-machined end face,
one rough-machined end face

Tol.: +5 mm
 Square steel dimensions, thickness Tol.: +0,05 / - 0 mm

 

For PRÄZI- flat steel according to DIN 59 350 with machining allowance:

Thickness grounded / fine-machined Tol.: +0,2 / - 0 mm
Width grounded / fine-machined Tol.: +0,2 / - 0 mm

Length, one fine-machined end face,
one rough-machined end face

Tol.: +5 mm
Square steel dimensions , thicknessTol.: +0,20 / - 0 mm

 

Angular deviation for PRÄZI- flat steel according to DIN 59350
The permissible angular deviation between the side faces and between
the end faces and these faces 0°15´.

For PRÄZI flat steel with machining allowance:

Thickness grounded / fine-machined Tol.: + 0,25 / - 0 mm
Width grounded / fine-machined Tol.: + 0,4 / - 0 mm

Length fine-machined / sawn length 500 mm

Tol.: + 20 mm
Length fine-machined / sawn length 1030 mm Tol.: +/- 20 mm
Square steel dimensions , thickness Tol.: + 0,25 / - 0 mm

 

Angular deviation
The permissible angular deviation between the side faces is 0°15´.

Parallelism
The parallelism lies within the permissible dimensional tolerances. Deviations
therefrom are to be agreed when ordering.

Surface roughness
The figures for the peak-to-valley height relate in the case of

  • precision flat steel to the wide longitudinal sides
  • precision square steel bars to all longitudinal sides

It is for

  • bars without machining allowance     Ra ≤ 2 μm
  • bars with machining allowance           Ra ≤ 6 μm
  • bars with machining over-measure    Ra ≤ 6 μm

Heat treatment condition
The steels are normally delivered in a soft-annealed condition, other
heat treatment conditions are to be agreed when ordering.

Planeness and straightness
The deviation from the planeness and straightness are indicated in
the table below. They are measured on an individual piece along the
longitudinal and short sides with a feeler gauge. The test specimen is
to lie freely on a plane board.

Width (mm) thickness ( mm )
  >1 ≤2,2 >2,2 ≤5,2 >5,2 ≤10,4 >10,4 ≤20,4 >20,4
≤ 100,3 (1,0) 0,8 0,7 0,5 0,3
>100,3 ≤200,3 (1,5) 1,1 0,8 0,6 0,4
>200,3 ≤300,3 (2,0) 1,5 0,9 0,8 0,5
 >300,3 ≤500,3 (2,3)  2,0 1,2 1,0 0,8

For the small thicknesses, changes in planeness are possible.
Figures in brackets are only approximate values.

Delivery terms

Terms of delivery
Export

All prices are quoted in Euro per unit,
ex works, excluding packaging, plus alloy
surcharges
. Valid
from 01.05.15.

Minimum order quantity:
There are no minimum order quantities.
From an order value higher than
250 Euros, delivery is effected free german
border including packaging (CPT,
German Border, ICC-Incoterms 2010).

Shipping:
Consignments of goods up to 40
kg are delivered via parcel service.
Consignments of goods above 40
kg are delivered by a forwarding
agent. The receiver has to bear all
the risks during the transport.

Shipping costs:
Parcel shipment is effected at cost
price. Consignments that can be separated
are split up into several parcels
to your advantage. Shipped parts with
a weight of more than 40 kg are delivered
by a freight forwarder (Freight
charges available on request).

Scale of prices:

Order value Quantity discount
 
0 to 250 Euro Order value   plus freight charges
and packaging
 
   > 250 Euro Order value   free German border
 
   > 2000 Euro Order value   less 4 %
 
   > 4000 Euro Order value   less 6 %
 
   > 6000 Euro Order value   less 8 %
 
   > 8000 Euro Order value   less 10 %

 

Delivery time:
All standard PRÄZI-flat steels are available
at the day of order. Orders, we receive
by 13:00 hrs, are shipped on the
same day.

Our currently valid alloy surcharges are stored here

The general business terms and conditions from PRÄZI–Flachstahl AG are stored here.

Alloy surcharges for PRÄZI flat steel deliveries

Alloy surcharges for PRÄZI flat steel deliveries

Information about the current alloy surcharges is available on request
E-Mail: verkauf(at)praezi(dot)de.

You are an registered shop-customer? After successful login, you can inform yourself in our webshop about the current alloy surcharges.

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