21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars

Product Details
Customization: Available
Type: Alloy Steel Bar
Standard: AISI, ASTM, DIN, BS, Un1
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  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
  • 21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
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  • Overview
  • Product Description
  • Detailed Photos
  • Company Profile
  • Equipment and Process
  • Application
  • Packaging
Overview

Basic Info.

Model NO.
21CrMoV57
Technique
Forged
Shape
Bar
Surface Treatment
Polished
Special Use
Wear Resistant Steel, Mold Steel
Application
Structural Steel Bar, Tool Steel Bar, Die Steel Ba
Surface
Black or Bright
Standatd
En 10269
Italy
Uni 7845-78
Germany
DIN 17200-86
Transport Package
Steel Strip/Wooden Box
Specification
Diameter 10mm~ 1000mm
Trademark
OEM & ODM
Origin
China
HS Code
7228400000
Production Capacity
1000 Ton/Month

Product Description


 
Product Description

1.7709, AFNOR 20CDV5.7, 21CrMoV5.7
Standard reference:

EUROPE EN 10269: 2003
ITALY (UNI 7845-78)
GERMANY (DIN 17200-86) / DIN 17240
FRANCE (NF A 35-552-86)
UK (BS 970 pt.3-96)
USA ASTM A 29
AD 2000 W7

Chemical Analysis (Mass-%)

Element C Si Mn P S  Cr NI Mo V Al
min. 0.17 0.15 0.4 - - 1.2 - 0.65 0.25 -
Max. 0.25 0.35 0.8 0.025 0.03 1.5 0.6 0.8 0.35 0.03

Mechanical Properties

The mechanical properties of 1.7709 steel are defined by its condition, typically in a quenched and tempered state (+QT). The properties include yield strength, tensile strength, elongation, reduction of area, and impact energy. For instance, in the quenched and tempered condition, the steel exhibits:

- Yield Strength: ≥ 550 N/mm²
- Tensile Strength: 700-850 N/mm²
- Elongation: ≥ 16%
- Reduction of Area: ≥ 60%
- Impact Energy (Charpy-V): ≥ 63 J

These properties make it suitable for applications requiring high strength and toughness, especially at elevated temperatures.
Heat Treatment
The heat treatment process for 1.7709 steel involves hardening and tempering. The typical heat treatment parameters are:

- Hardening: Heating to 880-950°C followed by quenching in air, oil, polymer, or water.
- Tempering: Heating to 680-720°C for at least 2 hours, followed by air cooling.
Detailed Photos
21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
Company Profile
21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
Equipment and Process

21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
Application
21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
Packaging
21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars21crmov57 (21CrMoV5-7, 21CrMoV5.7, 1.7709) Forged Forging Steel Round Bars/Flat Steel Bars/Hollow Bars
 

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