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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 33 34 35 36 37 38 39 40 41 42 43 47          
43 35 36 37 38 39 40 41 42 43 44 47 49 52 58      
53 37 38 39 40 41 42 43 44 45 46 49 52 55 64 76    
63 39 40 41 42 43 44 45 46 47 48 52 58 63 69 82 89  
73 40 41 42 43 44 45 46 47 48 51 57 63 69 75 89 99  
83 41 46 47 48 49 50 51 52 53 58 64 70 75 83 98 107 165
93 43 49 50 51 52 53 54 55 56 59 66 73 79 88 104 115 175
103 44 50 51 52 53 54 55 56 58 64 70 77 83 94 112 123 186
123 46 52 55 56 57 58 59 61 67 74 81 89 98 110 129 143 216
143 48 54 58 59 60 62 63 65 71 80 88 99 107 119 142 157 240
153 49 56 59 61 63 65 66 69 77 82 91 101 112 125 149 167 255
163 50 57 61 62 65 69 77 81 95 102 113 124 132 146 171 190 290
183 53 64 65 67 72 77 82 89 98 107 121 132 142 157 183 205 310
203 56 76 83 85 86 89 91 93 103 113 127 139 151 167 197 220 340
223 59 80 88 89 91 95 96 98 107 119 132 149 162 178 209 235 360
243 61 84 92 95 96 98 101 103 112 125 139 155 169 187 221 251 380
263 64 89 97 100 101 103 107 109 117 130 145 163 179 198 233 264 405
283 66 92 102 107 108 110 114 116 121 136 152 172 187 209 246 279 420
303 70 97 107 108 110 112 115 119 125 142 159 179 196 227 259 294 450
353 76 107 119 120 123 129 136 137 153 172 192 223 237 261 307 348 520
403 83 116 131 132 135 142 146 152 165 187 210 235 259 286 336 384 580
453 89 126 140 144 145 155 163 173 198 211 247 277 293 342 401 451 660
503 95 137 154 156 158 170 183 187 210 233 260 292 321 352 416 472 710
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 57 58 59 60 61 62 63 64 65 68 72 78          
43 59 60 61 62 63 64 65 68 70 74 79 81 86 96      
53 62 63 64 65 66 67 68 69 71 76 81 86 91 105 125    
63 65 67 68 69 70 71 72 73 74 75 87 96 105 115 136 148  
73 67 68 70 71 72 73 74 76 78 85 94 105 115 125 148 165  
83 68 77 78 80 82 83 84 85 88 96 106 116 125 139 164 178 270
93 72 81 82 84 85 86 88 89 93 99 110 122 132 146 174 192 290
103 74 83 85 86 87 89 92 93 96 106 117 129 138 157 186 205 310
123 77 86 91 92 93 96 98 102 112 123 135 149 163 183 215 238 360
143 80 90 96 97 98 103 104 109 118 133 147 165 178 198 236 262 395
153 82 93 99 101 105 108 110 115 128 137 152 169 187 208 248 278 420
163 84 95 102 103 108 115 128 135 158 170 188 207 220 243 285 316 480
183 89 108 109 112 120 128 136 148 164 178 201 219 237 261 305 341 515
203 93 127 138 141 143 148 152 155 172 189 212 231 252 278 328 367 560
223 98 134 146 149 152 158 160 163 178 198 220 248 270 296 348 391 590
243 102 140 154 158 161 164 168 172 187 209 232 259 282 312 369 418 630
263 106 148 162 166 168 172 178 180 194 217 242 272 298 329 389 440 670
283 110 154 170 178 182 186 190 193 201 226 254 287 312 348 410 464 700
303 116 162 178 180 183 188 192 198 208 236 265 298 327 379 431 490 740
353 126 178 198 200 205 215 226 229 255 286 320 372 395 435 512 580 870
403 138 193 218 220 225 236 243 253 275 312 350 392 431 476 560 640 960
453 149 210 234 240 242 258 272 288 330 352 412 462 488 570 668 751 1100
503 158 228 257 259 262 283 305 312 350 389 433 487 535 587 693 787 1180

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 valid as of

ab 01. Okt. 2017

Material Euro/kg
AISI 420 FM 1,15 €/kg
AISI 5120 0,32 €/kg
AISI P 20 0,43 €/kg
AISI P 20 + S 0,43 €/kg
AISI H 11 1,29 €/kg
AISI A 2 1,03 €/kg
AISI D 2 1,70 €/kg
AISI D 6 1,17 €/kg
AISI 6F 7 0,97 €/kg
AISI 02 0,33 €/kg
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