Cold Rolled Hot Rolled SA 387/A 387 Boiler Alloy Steel Sheet Plate

Name: Cold Rolled Hot Rolled SA 387/A 387 Boiler Alloy Steel Sheet Plate
Brand: ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

Price Negotiable

Price: 800 - 9000 USD / ton

MOQ: 5T

Delivery Time: 60-75days

Brand: HDT

Product Description

Cold Rolled Hot Rolled Alloy Steel Plate SA 387/A 387 Boiler Steel Plate / Sheet

Product Description

A high quality chrome molybdenum alloy steel plate intended specifically for use in weldable carbon steel pressure vessels at elevated temperatures. Added molybdenum gives the material greater temperature tensile strength and the chromium provides improved corrosion resistance.

Characteristics

4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness. High creep strength. Repeated impact resistant capability.

Applications

4140 Alloy Steel/SAE 4140 Steel Price is use to producecomponents with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering .

Chemical Composition

_{SA387/ASTM A387}	_{Grade 5}	_{Grade 9}	_{Grade 11}	_{Grade 12}	_{Grade 22}
_C	_{0.15 max}	_{0.15 max}	_{0.04 – 0.17}	_{0.04 – 0.17}	_{0.04 – 0.15}
_Mn	_{0.25 – 0.66}	_{0.25 – 0.66}	_{0.35 – 0.73}	_{0.35 – 0.73}	_{0.25 – 0.66}
_P	_0.035	_0.030	_0.035	_0.035	_0.035
_S	_0.030	_0.030	_0.035	_0.035	_0.035
_Si	_{0.55 max}	_{1.05 max}	_{0.44 – 0.86}	_{0.13 – 0.45}	_{0.5 max}
_Cr	_{3.9 – 6.1}	_{7.9 – 10.1}	_{0.94 – 1.56}	_{0.74 – 1.21}	_{1.88 – 2.62}
_Mo	_{0.40 – 0.7}	_{0.85 1.15}	_{0.40 – 0.7}	_{0.4 – 0.65}	_{0.85 – 1.15}

Mechanical Properties

Grade	A 387 Grade 5 & Grade 9		A 387 Grade 11		A 387 Grade 12		A 387 Grade 22
Grade	Class 1	Class 2	Class 1	Class 2	Class 1	Class 2	Class 1	Class 2
Tensile Strength (ksi)	60-85	75-100	60-85	70-90	50-80	65-85	60-85	75-100
Tensile Strength (MPa)	415-585	515-690	415-585	485-620	380-550	450-585	415-585	515-690
Yield Strength (ksi)	30	45	35	45	33	40	30	45
Yield Strength (MPa)	205	310	240	310	230	275	205	310
Elongation in 200mm (%)			19	18	18	19
Elongation in 50mm (%)	18	18	22	22	22	22	18	18

Surface condition

Black surface/ Grinded/ Machined

Hardness

Annealed HBS 217 max

Heat treatment

Forging Heat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.

AnnealingHeat to 830°C-850°C.Cool in furnace.

NormalisingHeat to 870°C-900°C.Cool in still air.

Stress RelievingAnnealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.

HardeningHeat to 830°C-880°C. Quench in oil or polymer.

TemperingHeat to 450°C-700°C cool in still air. NB. Tempering within the range 200°C-420°C will result in temper brittleness and should be avoided.

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Company ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

Location Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China

Contact Person Yolanda Zou

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Cold Rolled Hot Rolled SA 387/A 387 Boiler Alloy Steel Sheet Plate

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