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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 18 20 23 24                  
25,4 19 21 24 27 31                
30,4 22 23 29 33 38 53              
40,4 24 27 33 40 45 59 66            
50,4 28 33 38 45 54 66 74 95          
60,4 32 35 41 51 63 72 81 105 119        
70,4 39 42 46 57 68 80 86 113 135 153      
80,4 44 48 52 65 71 86 101 128 143 166 188    
90,4 49 50 58 72 82 96 113 143 164 197 232 260  
100,4 53 59 65 78 90 106 124 161 194 224 252 292  
120,4   76 83 90 106 128 155 200 233 272 317 364 434
130,4   82 87 95 116 137 165 212 250 296 363 404 452
140,4   89 92 102 125 147 176 225 266 312 368 416 464
150,4   94 98 107 136 158 184 233 282 326 374 433 500
200,4   118 134 159 200 227 260 308 374 440 542 584 650
250,4   142 164 188 237 274 310 380          
300,4   177 196 236 274 322 368            

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 26 30 46 57 75 108 133 195 230 335
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 29 33 38 40                  
25,4 30 34 40 44 51                
30,4 36 38 48 55 62 88              
40,4 40 45 54 66 74 98 110            
50,4 46 54 62 74 90 110 122 158          
60,4 52 58 68 85 104 120 134 174 198        
70,4 64 69 76 94 112 132 142 188 224 254      
80,4 72 79 86 108 118 142 168 212 238 276 312    
90,4 80 82 96 120 136 160 188 238 272 328 386 432  
100,4 88 97 108 130 150 176 206 268 322 372 420 486  
120,4   126 137 150 176 212 258 332 388 452 528 606 722
130,4   136 145 158 192 228 274 352 415 492 604 672 752
140,4   147 153 170 208 244 292 375 442 520 612 692 772
150,4   156 162 178 226 262 306 388 470 542 622 720 832
200,4   196 222 264 332 378 432 512 622 732 902 972 1082
250,4   236 272 312 395 456 516 632          
300,4   294 326 392 456 536 612            

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 42 50 76 95 124 178 222 322 382 552
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 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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