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STEEL MATERIAL GRADES

CS 70 and CK67: Carbon steel which, after hardening and tempering, has excellent strength and fatigue resistance which makes them ideal for spring pins, both coiled and slotted.

AISI 304 and WS 1.4310: Austenitic stainless steel, unhardenable and with low magnetic permeability, used
for both coiled and slotted spring pins where corrosion resistance is needed.

WS 1.3505: Hardenable high carbon steel with chrome content used for through-hardened dowels in the metric range.

WS 1.4305 and 303S31 (A2): Unhardenable austenitic stainless steel with low magnetic permeability used for dowels, grooved pins, taper pins and threaded spacers where corrosion resistant properties are required.

Silver Steel to BS 1407: A through-hardenable high carbon steel used for dowels and small turned parts.

WS 1.4571 and 316S11 (A4): Unhardenable austenitic stainless steel with low magnetic permeability, but with very high corrosion resistance used for dowels.

431S29 (C1): A hardenable martensitic stainless steel used for dowels requiring the maximum shear strength, combined with corrosion resistance.

WS 1.0718 (9SMnPb28): Leaded mild steel used for dowels, taper pins and grooved pins.

S300 Pb: Leaded mild steel used for threaded spacers.

AISI 1010: Low carbon steel used for roll-formed clearance spacers.

WS 1.0503 (C45k): Standard Key steel with a minimum tensile strength of 60 Kg/mm².

 

Type Of Steel Carbon C Manganese Mn Phosphorus P Sulphur S Silicon SI Chrome Cr Vanadium V Lead Pb Nickel NI Molybdenum Mo Titanium TI
CS 70 0.65-0.75 0.5-0.9 0.045 Max 0.045 Max 0.35-0.50            
AISI 304 0.08 Max 2.0 Max 0.045 Max 0.030 Max 1.0 Max 18.0-20.0     8.0-10.5    
WS 1.4301 0.07 Max 2.0 Max 0.045 Max 0.030 Max 1.0 Max 17.0-19.0     8.5-10.5    
303S31 0.12 Max 2.0 Max 0.060 Max 0.15-0.35 1.0 Max 17.0-19.0     8.0-10.0 1.0 Max  
WS 1.3505 0.90-1.05 0.25-0.45 0.030 Max 0.025 Max 0.15-0.35 1.35-1.65     0.30 Max    
WS 1.4305 0.12 Max 2.0 Max 0.060 Max 0.15-0.35 1.0 Max 17.0-19.0     8.0-10.0    
WS 1.4571 0.08 Max 2.0 Max 0.045 Max 0.030 Max 1.0 Max 16.5-18.5     10.5-13.5 2.0-2.5 0.8 Max
316S11 0.03 Max 2.0 Max 0.045 Max 0.030 Max 1.0 Max 16.5-18.5     11.0-14.0 2.0-2.5  
431S29 0.12-0.20 1.0 Max 0.040 Max 0.030 Max 1.0 Max 15.0-18.0     2.0-3.0    
WS 1.0718 0.14 Max 0.90-1.30 0.100 Max 0.27-0.33 0.05 Max     0.15-0.35      
S300 Pb 0.14 Max 1.00-1.50 0.100 Max 0.32-0.40 0.05 Max     0.20-0.30      
AISI 1010 0.06-0.13 0.30-0.60 0.040 Max 0.05 Max 0.4 Max            
Silver Steel 0.95-1.25 0.25-0.45 0.045 Max 0.045 Max 0.4 Max 0.5 Max          
WS 1.0503 0.42-0.50 0.50-0.80 0.045 Max 0.045 Max 0.4 Max 0.4 Max     0.40 Max 0.10 Max  
STANDARDS
TOLERANCES
HOLE SIZES

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