EN 1.1133 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. 1.1133 is the EN numeric designation for this material. 20Mn5 is the EN chemical designation.
It has a moderately high electrical conductivity and a moderately low thermal conductivity among wrought carbon or non-alloy steels.
The properties of EN 1.1133 steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.1133 steel to: wrought carbon or non-alloy steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
- Quantity
- Value
- Unit
- Young's modulus
- Tensile strength
- Elongation
- Fatigue
- Yield strength
- 200000 - 200000
- 650 - 880
- 8 - 25
- 275 - 275
- 350 - 550
- MPa
- MPa
- %
- MPa
- MPa
Physical Properties
- Quantity
- Value
- Unit
- Thermal expansion
- Thermal conductivity
- Specific heat
- Melting temperature
- Density
- Resistivity
- 10 - 10
- 25 - 25
- 460 - 460
- 1450 - 1510
- 7700 - 7700
- 0.55 - 0.55
- e-6/K
- W/m.K
- J/kg.K
- °C
- kg/m3
- Ohm.mm2/m
Heat Treatment:
Annealing
Quenching
Tempering
Normalizing
Q & T
√
√
√
√
√
Can produce 20Mn5 specifications and size
- Steel grade
- Specification
- 20Mn5
- 20Mn5
- 20Mn5
- 20Mn5
- 20Mn5
- 20Mn5
- Round bar
- Square-shape steel/Flate bar
- Steel Plate/Sheet
- Forging
- Tubings
- Steel coils and stripΦ1 to Φ2000
PRODUCT DESCRIPTION
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - heat treatment / QT
MATERIAL SPECIFICATIONS - DIN EN 10083-3 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION ( Mass weight % )
C (％): 0.17 ~ 0.23
Si (％): ≤ 0.60
Mn (％): 1.00 ~ 1.50
P (％)≤: 0.035
S (％)≤: 0.030
Cr (％): -
Mo (％): -
Ni (％): -
Other(％): Al 0.02 min, Cr+Ni+Mo≤ 0.63
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃| annealing: 650～700
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 820～850water, 830 ~ 860oil
Heat treatment temperature /℃| Tempering : 550～660
Hardness after annealing ≤HBS: -
Steel dimension /mm: ≤16
|σb≥/MPa: 540 ~ 690
|σs≥/MPa: 390
|δ5≥/(%): 22
|ψ≥/(%): 50
|AKV≥/J: 69
Steel dimension /mm: 17 - 40
|σb≥/MPa: 490 ~ 640
|σs≥/MPa: 345
|δ5≥/(%): 20
|ψ≥/(%): 55
|AKV≥/J: 69
Steel dimension /mm: 41 - 100
|σb≥/MPa: 490 ~ 590
|σs≥/MPa: 295
|δ5≥/(%): 18
|ψ≥/(%): 60
|AKV≥/J: 76
AVAILABLE SHAPES
Round bar / flat bar / Square bar / plate / tube
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
Pressure vessel, seamless pipe
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
- If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.
NO.501 Dongshe Road, Dongjing Town, Songjiang District, Shanghai,China,201600
. 
Mobile/Whatsapp/Zalo/Lines/Skype
General Inquiry
company profile download