Welcome to B2BAGE
SCM440 Steel Round Bar
SCM440 Steel Round Bar

Minimum Order: 0
Quality/Safety Certification: 0.00


1. 100% after ultrasonic test
2. black or machined surface
3. good quality
4. enough stock at hand

1.Dimentions of all 4140/4142/42CrMo4/42CrMo products in our company(Unit:MM)

round bar(HR)  dia 10--65 (length 2000-5000)                                                                                                        
round bar(HF) dia70--500(length2000-5000)
flat(HR) thickness*width*length 10--90*205--605*2000--4000
flat(HF) thickness*width*length 25--1000*205-1000*2000-4000
die blockas per customers' required dimention and hardness(provide heat treatment service)

 

 

2. Standard:AISI 4140/4142,DIN 41CrMo4/42CrMo4,JIS SCM4,ISO 683/1 3,BS708M40/708A42/709M40,W.Nr.1.7225

 

 

3.Application

 

• Shafts, gears, cylinders and columns for industry mechanics in general. 
• Construction of mold 
• For compression molds, where the etching is not required. 
• Mechanical parts in general.

 

4.Steel Feature

• Good purity and homogeneity.

• Good machinability
(Roughing, grinding and drilling).

• Good dimensional stability during heat treatment.

• Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties. 
• Poor solderability

 

5.Heat Treatment

Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air. 
Stress relieving: after rough heat to 500 ° C, 
maintenance raff. In oven to 400 ° C, then in air.
Hardening: preheating from 600 to 650 ° C austenitizing 
at 840 to 880 ° C, quenching in oil. 
Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the mechanical properties 
to be obtain

Ads by Google



About Us | Contact Us | Help | Terms & Conditions
Hot Products: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0-9
Copyright Notice @ 2008-2013 B2BAGE Limited and/or its subsidiaries and licensors. All rights reserved.