1.3974 datasheet,1.3974 chemical,1.3974 heat treatment

1.3974
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Non-magnetic 1.3974 Specification, Description 1.3974 Ring forging - steelmaking, ESR, Blooming, Hot forging, Hot rolling, Heat treatment, Straightened, Ultrasonic test, Cold working, Machined. We also possess advanced precision machining equipments for further processing. Technical standards - DIN SEW 390 (1991) or by agreement.
TECHNICAL DATASHEET - Grade DIN X2CrNiMnMoNNb23-17-6-3 & W-Nr 1.3974

MATERIAL CATEGORY: Non-magnetic stainless steel and alloy
MATERIAL SPECIFICATIONS: DIN SEW 390 (1991)
OFFICIAL TEST CERTIFICATE: issued by TUV - SGSBV
CHEMICAL COMPOSITION (Mass weight - %)
C (%):     ≤ 0.030
Si (%):     ≤ 1.00
Mn (%):   4.50 ~ 6.50
P (%)≤:   0.025
S (%)≤:   0.010
Cr (%):    21.0 ~ 24.5
Ni (%):    15.5 ~ 18.0
Mo (%):   2.80 ~ 3.40
Other(%): Nb 0.10 ~ 0.30, N 0.35 ~ 0.50
HOT WORKING, HEAT TREATMENT AND MECHANICAL PROPERTIES
Hot working temperature: 1150~950℃
Quenching or solution treatment temperature: 1020~1100℃
Tensile strength, σb≥ /MPa: 800 ~ 1050
Yeild strength, σ0.2 ≥/MPa: 460
Elongation, δ≥(%): 35.0
Impact, Akv ≥/J: 55 (transversal value)
TYPICAL APPLICATIONS
High-voltage electrical apparatus, bolts and nuts.
Transformer tank.
Generator.
Preparation equipments.
Electronics.
PRODUCT DESCRIPTION
The
alloy is usually produced by AOD / VOD /VIM followed by electroslag refining (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.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment.
HEAT TREATMENT PRACTICE
Heat treatment is only suitable for specific grades of
stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements. 
PROFILE & DIMENSIONS
Round bar (Diameter): 5.5mm to 300mm
Square bar / Flat bar: 3mm to 800mm
Wire rod: Diameter 0.10 ~ 15mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email:
sales@ccsteels.com.

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