MIL-S-21952 datasheet,MIL-S-21952 chemical,MIL-S-21952 heat treatment

MIL-S-21952
2021-04-22 10:50:45   Origin:   Remark:0 Click:

Aerospace MIL-S-21952 datasheet, Specifications MIL-S-21952 Chemical, MIL-S-21952 Properties from Steelmaking, Blooming, Hot forging, Hot rolling, Heat treat, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923, EN 10228-3.
TECHNICAL DATA SHEET - Grade MIL-S-21952

MATERIAL CATEGORY - low alloy and high tensile steel
MELTING - Consumable electrode remelted steel
OFFICIAL TEST REPORT - issued by TUV - SGS -  BV
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (%):     0.12 ~ 0.18
Si (%):     0.15 ~ 0.35
Mn (%):   0.20 ~ 0.60
P (%) ≤:  0.025
S (%) ≤:  0.015
Cr (%):   1.00 ~ 1.80
Ni (%):    2.00  ~ 3.25
Mo (%):   0.20 ~ 0.60
Ti (%):    ≤ 0.020
Cu (%):   ≤ 0.25
V (%):     ≤ 0.030
MECHANICAL PROPERTY AND HEAT TREATMENT PRACTICE
Forms: Round bar, flat bar, forgings
Condition: +A, 650 Deg. C
Tensile strength,σb/≥ MPa: 554 max.
Yield strength, σ0.2/≥ MPa: -
Elongation, δ ≥(%): 35.0
Reduction of area, ф ≥ (%): -
Hardness | HBW: -
MELTING PROCESS & APPLICATION
This
alloy is generally smelt in BEF / AOD, EAF + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement. It is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and so on.
AVAILABLE FORMS & DIMENSIONS
Strip: THK 0.3 ~ 3.0 X Width 10 ~ 300mm
Sheet: THK 0.3 ~ 10 X Width 10 ~ 1000mm
Wire rod: Diameter 0.4 ~ 3.0mm
Round bar (diameter): 5.5 ~ 450mm
Square bar: 5.5 ~ 300 X 5.5 ~ 300mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.  
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail:
sales@ccsteels.com

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