K31390 Stockist, K31390 Equivalent Steel

K31390
2019-11-28 10:19:21   Origin:   Remark:0 Click:

Standard Specification of forged or rolled alloy and stainless steel pipe flanges,forged fittings,and valves and parts for high temperature service K31390 datasheet, K31390 Chemical compositions, K31390 Mechanical property from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or rough turned machining. Technical specification - ASTM A182 - 2018.
 
 
TECHNICAL DATA SHEET - UNS K31390
MATERIAL TECHNICAL STANDARDS: ASTM A182 - 2018
MATERIAL TYPE: 3Cr - 0.9Mo - 0.25V Alloy steel
CHEMICAL COMPOSITION (WEIGHT %)
C (%):     0.10 ~ 0.15
Mn (%):   0.30 ~ 0.60
Si (%):    ≤ 0.10
P (%)≤:   0.020
S (%)≤:   0.020
Cr (%):    2.70 ~ 3.30
Mo (%):   0.90 ~ 1.10
Ni (%):    -
Nb (%):   0.015 ~ 0.007
Ti (%):     ≤ 0.015
Cu (%):   ≤ 0.25
V (%):     0.20 ~ 0.30
Ca (%):   0.0005 ~ 0.0150
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb/≥ MPa: 585 ~ 760
Yield strength, σ0.2/MPa: 415
Elongation, δ ≥(%): 18.0
Reduction of area, ф ≥ (%): 45.0
Hardness via heat treatment /HBW: 174 ~ 237
HEAT TREATMENT PRACTICE
Condition: annealed 955 Deg. C
Cooling medium: furnace cool
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / BEF + AOD / EAF, followed by electroslag refining (ESR or 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' specific requirements.
Round bar / Wire rod (Diameter): 0.50mm to 650mm
Square bar / Flat bar: 3mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400mm X W200 ~ 1000mm X L1000 ~ 3500mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical inquiry. pleased to EMAIL (
lh.steel@hotmail.com ) our resident team of qualified production engineers.

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