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W-Nr 1.7350 / 22CrMo4-4 ESR Steels

Product parameters
Material Technical Standards:: DIN EN 10028-2
Place of Origin: P.R. China
Product Shapes:: Round bars, flat bars, forgings, ring
Surface Condition:: Rough turned, shot blasted, centre ground
Production Lead Time:: Within 65 days after 40% deposit prepayable
Unified Social Credit Code:: 91510871777942750J
Company ISO Register No:: UQ211218R0
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Description
Introduction:
W-Nr 1.7350 is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test
ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.


Applications:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. W-Nr 1.7350 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.


All Grades Comparison
DIN EN W-Nr
22CrMo4-4 W-Nr 1.7350


Chemical Composition (Weight %)
C Si Mn P S Cr Ni Mo Other
0.19 ~ 0.26 0.15 ~ 0.40 0.50 ~ 0.80 ≤ 0.035 ≤ 0.035 0.90 ~ 1.20 ≤ 0.60 0.40 ~ 0.50 -


Mechanical Properties
Condition of heat treatment Tensile
Rm(MPa)
Yield
Rp0.2(MPa)
Elongation
A(%)
Reduction in cross
section on fracture
Z (%)
Impact
AKV/AKU(J)
Brinell
Hardness(HBW)
Q/T 640 ~ 780 ≥ 490 ≥ 18.0 - ≥ 41 190 ~ 236


Shapes & Dimensions
Round bar (Diameter): 5.5 mm to 700 mm
Wire rod (Diameter): 0.10 ~ 16mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 
Length: Fixed length or random length or based on the customer's special requirement.

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