1.2162/21MnCr5 Case-hardening Cold Work Tool Steel

• Type: Steel Plate
• Standard: ASTM, AISI, DIN
• Certification: ISO
• Surface Treatment: Check Detailed Description
• Technique: Check Detailed Description
• Application: Mold & Dies
• Model NO.: 1.2162
• Special Use: High-strength Steel Plate
• Stock: Stock
• Alloy or Not: Alloy
• Transport Package: Nuding Packing
• Specification: check detailed description
• Trademark: Ningbo Ningshing
• Origin: China

Product Description

DIN 1.2162 Cold Work Alloy Tool Steel



Ningshing Special-Steel is the leading distribution and stockist of DIN 1.2162 Cold Work Steel. Our large stock of DIN 1.2162 Cold Work Steel can meet your demand with immediate delivery. The stock involves different size range of hot rolled /forged rounds and flats, forged blocks. Delivery condition in Annealed or Q+T.

DIN 1.2162 Cold Work Tool Steel is standard steel for case-hardening with good machinability; high surface hardness with tough core.

Dimensions
Round: dia.10-500 mm
Hot Rolled Flat: 6-200 x 300-1200 mm
Forged Block: 150-500 x 200-1600 mm

Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Black surface or Machined surface

Equivalence

AlSl / SAE	DlN /W.Nr	JlS	GB
5120	1.2162

Chemical Composition (%)

Steel Grade	C	Si	Mn	P	S	Cr
1.2162	0.18-0.24	0.15-0.35	1.10-1.40	≤ 0.030	≤ 0.030	1.00-1.30

Applications
Machine parts and moulding plates with a high surface hardness;
Synthetic resin press moulds for the processing of thermoplastic and thermosetting plastics.

Heat Treatment
Soft Annealing
670 to 710 °C for about 2 to 5 hours
Slow controlled cooling, further cooling in air,
hardness max. 230 HB


Carburising
900 to 950 °C. The choice of the caburising means and carburizing temperature depends on the desired surface carbon content, the carburizing graph and the required case depth.
Application:
870 to 930 °C in powder/salt bath, cooling in oil/warm bath at 160 to 250°C


Intermediate stress-relieving heat treatment:
630 to 650 °C, about 2 to 4 hours with slow furnace cooling

Preheating:
350°C depending on dimensions

Hardening:
Curing temperature 810 to 840 °C in oil of ~60 °C warmth

Cooling:
Down to about 100 °C in oil, then in air to about 50 °C

Tempering
1 hour per 20mm part thickness, at least 2 hours.


Q1: What is Ningbo Ningshing Precision Machinery Group Co., Ltd ?
A1: Ningbo Ningshing Precision Machinery Group Co., Ltd., formerly known as Ningbo Ningshing Special-Steel Group Co., Ltd., is the leading distributor of Special Steel, and also a professional mold base maker in China. Our business involves special steel trading, machining processing, mold base making, heat treatment, CNC machines manufacturing.


Q2: Are you a manufacturer or a trader? 
A2: For Special Steel, we are the one of the leading distributors and service center in China. 9 warehouses with over 50,000 tons of regular stock. Our workshop has various kinds of equipments for sawing, milling, grinding, drilling etc.
For mold base, we are a professional manufacturer, with 24 sets of CNC machines, 3 axis and 5 axis, CMM for inspection. We produce medium-large sized mold base for plastic injection mold and die casting die.


Q3: How do you control the quality of steels?
A3: Firstly, we have very close and deep relationship with Chinese Prime Mills, choose supplier carefully, and regard them as the long term business partner. Based on the long term cooperation, we concentrate on special steel business and expand the market step by step. Secondly, we have own technical center which is formed by the experienced engineers and technicians whom ever worked for prime mills. We control the quality in production process, in-out warehouse.


Q4:: Which kind of processing can you do?
A4: We do machining processing like cutting, milling, grinding, turning, peeling, drilling, CNC machining. Meanwhile, we do vacuum heat treatment for die and mold.