Steel Grades 1.

7734 Chemical information,Mechanical properties

Physical properties, Mechanical properties, Heat treatment, and Micro structure

This page is mainly introduced the 1.7734 Datasheet, including chemical

information,mechanical properties, physical properties, mechanical properties, heat
treatment, and Micro structure, etc. It also contains the use of 1.7734,such as it is
commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials
application.

Datasheet for Steel Grades Specialsteel 1.7734

1.7734 Standard Number:

ITEM Standard Number Descriptions

1 WL 1.7734-1 (1982) Aerospace; weldable hardened and tempered chromium-molybdenum-vanadium

steel with approx. 0,15 C - 1,4 Cr - 0,9 Mo - 0,25 V; sheet, plate and strip

2 WL 1.7734-2 (1982) Weldable heat-treatable chromium-molybdenum-vanadium steel with about

0.15C-1.4Cr-0.9Mo-0.25V; rods and forgings

3 WL 1.7734-3 (1982) Weldable heat-treatable chromium-molybdenum-vanadium steel with about

0.15C-1.4Cr-0.9Mo-0.25V; pipes

4 WL 1.7734-4 (1982) Weldable heat-treatable chromium-molybdenum-vanadium steel with about

0.15C-1.4Cr-0.9Mo-0.25V; filler metal

1.7734 Chemical composition(mass fraction)(wt.%)

Chemical Min.(%) Max.(%)

C 0.12 0.18

Si 0.20

Mn 0.80 1.10

S 0.015

P 0.020

Cr 1.25 1.50

Mo 0.80 1.00

V 0.20 0.30

C Si Mn P S Cr Ni Mo V Ta

W N Cu Co Pb B Nb Al Ti Other

Alloy Conditio Ten Yiel Elo Har

n sile d St nga dne
Stre ren tion ss

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 Steel Grades 1.7734 Chemical information,Mechanical properties
Physical properties, Mechanical properties, Heat treatment, and Micro structure

ngt gth % HB
h MP
MP a
a
Alloy 1.7734.2 - - - 197
15CDV6 (ann)
Alloy 1.7734.4 700 550 13 207
15CDV6
Alloy 1.7734.5 980- 790 11 293-
15CDV6 118 352
0
Alloy 1.7734.6 108 930 10 321-
15CDV6 0-12 363
50
Alloy 15CDV6 is a low carbon steel which combines a high yield
strength (superior to SAE 4130) with good toughness and weldability.
15CDV6 can be readily welded with very little loss of properties during
welding and without the need for further heat treatment. This alloy finds
many applications in the aerospace and motorsports industries in such
components as roll cages, pressure vessels, suspensions, rocket motor
casings, wish bones and subframes.

Specifications
WS 1.7734
15CrMoV6
FE-PL63 S (AECMA)
FE-PL1505 (AECMA)
AIR 9160C
LN 668 round bar
MN 1013 round bar
ASNA 3108 sheet and plate
DIN 65389 sheet and plate
DIN 65390 sheet and plate
TE014 seamless tube
LN 9369 seamless tube
DIN 65035 forging billet

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 Steel Grades 1.7734 Chemical information,Mechanical properties
Physical properties, Mechanical properties, Heat treatment, and Micro structure

DIN 7527 forging billet

1.7734 Physical Properties

Tensile strength 115-234 σb/MPa

Yield Strength 23 σ 0.2 ≥/MPa

Elongation 65 δ5≥ (%)

ψ - ψ≥ (%)

Akv - Akv≥/J

HBS 123-321 -

HRC 30 -

1.7734 Mechanical Properties

Tensile strength 231-231 σb/MPa

Yield Strength 154 σ 0.2 ≥/MPa

Elongation 56 δ5≥(%)

ψ - ψ≥(%)

Akv - Akv≥/J

HBS 235-268 -

HRC 30 -

1.7734 Heat Treatment Regime

Annealing Quenching Tempering Normalizing Q&T

√ √ √ √ √

1.7734 Range of products

Product type Products Dimension Processes Deliver Status

Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and Annealed, Solution and
cold rolling Aging, Q+T, ACID-
WASHED, Shot Blasting

Steel Bar Round Bar, Flat Bar, Φ8-1200mm*L Forging, hot rolling and Black, Rough Turning,
Square Bar cold rolling, Cast Shot Blasting,

Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot- Annealed, Solution and
Rolled Aging, Q+T, ACID-
WASHED, Shot Blasting

Pipes / Tubes Seamless Pipes/Tubes, OD:6-219mm x Hot extrusion, Cold Annealed, Solution and
Welded Pipes/Tubes WT:0.5-20.0mm Drawn, Welded Aging, Q+T, ACID-

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 Steel Grades 1.7734 Chemical information,Mechanical properties
Physical properties, Mechanical properties, Heat treatment, and Micro structure

WASHED

We can produce Specialsteel the specifications follows:

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