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AISI 420

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PRÄZI Flat steel

Thickness Tolerances: Thickness +0,25/0 mm, Width +0,40/0 mm, Length +20/0 mm Prices in € per piece (valid only for the German market)
Width
(mm)
8,4 10,4 12,4 15,4 20,4 25,4 30,4 40,4 50,4 60,4 70,4 80,4 100,4
20,4 20 22 25 26                  
25,4 21 23 26 29 33                
30,4 24 25 31 35 41 57              
40,4 26 29 35 43 48 63 70            
50,4 30 35 41 48 58 70 79 101          
60,4 34 38 44 55 67 77 86 112 127        
70,4 42 45 49 61 73 85 92 120 144 163      
80,4 47 51 56 69 76 92 108 136 152 176 200    
90,4 52 53 62 77 87 102 120 152 174 209 246 276  
100,4 57 63 69 83 96 113 132 171 206 238 268 310  
120,4   81 88 96 113 136 165 212 247 289 337 386 461
130,4   87 93 101 123 146 175 225 265 314 385 429 480
140,4   95 98 109 133 156 187 239 282 331 391 441 492
150,4   100 104 114 145 168 196 247 299 346 397 459 530
200,4   126 143 169 212 241 276 327 397 467 575 620 689
250,4   151 174 200 252 291 329 403          
300,4   188 208 251 291 342 391            

PRÄZI square bar

with machining allowance 500 mm
Thickness
Length (mm) 15,4 20,4 25,4 30,4 40,4 50,4 60,4 70,4 80,4 100,4
500 28 32 49 61 80 115 141 207 244 356
Tolerances for cross section +0,25/0 mm
Thickness Tolerances: Thickness +0,25/0 mm, Width +0,40/0 mm, Length +20/-20 mm Prices in € per piece (valid only for the German market)
Width
(mm)
8,4 10,4 12,4 15,4 20,4 25,4 30,4 40,4 50,4 60,4 70,4 80,4 100,4
20,4 31 35 40 42                  
25,4 32 36 42 46 54                
30,4 38 40 51 58 66 93              
40,4 42 47 57 70 78 104 116            
50,4 48 57 65 78 95 117 130 167          
60,4 55 61 72 90 110 127 142 184 210        
70,4 68 74 81 100 119 140 150 199 237 269      
80,4 76 84 91 114 125 150 178 225 252 293 331    
90,4 84 87 102 127 144 170 199 252 288 348 410 458  
100,4 93 103 114 138 159 187 218 284 341 394 446 516  
120,4   134 145 159 187 225 273 352 411 479 560 643 766
130,4   144 153 167 203 242 290 373 440 521 641 713 798
140,4   156 162 180 221 259 309 397 469 552 649 734 819
150,4   165 171 187 240 277 324 411 490 575 660 764 882
200,4   208 235 280 352 400 458 543 660 776 957 1031 1147
250,4   250 288 331 419 483 547 670          
300,4   312 345 415 483 568 648            

PRÄZI square bar

with machining allowance 1030 mm
Thickness
Length (mm) 15,4 20,4 25,4 30,4 40,4 50,4 60,4 70,4 80,4 100,4
1030 44 53 81 101 131 189 235 341 405 585
Tolerances for cross section +0,25/0 mm

AISI 420 Data sheet download

Cold work 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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