BS 620-440
2018-08-08 13:49:50 Origin： Remark：0 Click：
Description BS 620-440 specifications, Ex-stock BS 620-440 Plate, Inventory BS 620-440 Property from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test & Magnetic powder inspection, Cold working, Peeled or rough turned machining. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET - Grade BS 620-440
MATERIAL CATEGORY: alloy steel bars, forge pieces for pressure vessel
MATERIAL SPECIFICATIONS: BS 1503 1982/9
MATERIAL SPECIFICATIONS: BS 1503 1982/9
CHEMICAL COMPOSITIONS (Mass weight - %)
C (％): 0.10 ~ 0.18
C (％): 0.10 ~ 0.18
Si (%): 0.15 ~ 0.40
Mn (％): 0.40 ~ 0.70
P (％)≤: 0.040
S (％)≤: 0.040
P (％)≤: 0.040
S (％)≤: 0.040
Cr (%): 0.80 ~ 1.20
Ni (%): -
Mo (%): 0.45 ~ 0.65
Al (%): ≤ 0.020
TYPICAL MECHANICAL PROPERTY
Tensile strength,σb/≥ MPa: 440
Yield strength, σ0.2/≥ MPa: 295
Yield strength, σ0.2/≥ MPa: 295
Elongation, δ ≥(％): 22.0
Reduction of area, (%): -
Annealed hardness, HB ≤: 179 min.
MELTING PROCESS
This alloy is generally air melted of Non-VIM + ESR, Electric Arc Furnace (EAF), EAF+LF+VD, or + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of VIM + Vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 5.50mm to 450mm
Square bar / Flat bar: THK1.0 to 200mm X Width 3 ~ 450mm
This alloy is generally air melted of Non-VIM + ESR, Electric Arc Furnace (EAF), EAF+LF+VD, or + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of VIM + Vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 5.50mm to 450mm
Square bar / Flat bar: THK1.0 to 200mm X Width 3 ~ 450mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
Other sizes can be supplied to meet specific requirements.
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.
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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