AISI/SAE 4140 Alloy Steel Bar
AISI 4140 steel bar is made of a low alloy steel containing chromium, molybdenum and manganese. It has a high carbon content and a good balance of strength, toughness, wear resistance, impact resistance and heat treatment capabilities.
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Product Description

4140 steel is a 1% chromium-molybdenum general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa. 4140 steel has improved machinability, which greatly increases feed and speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding. AISI4140 steel bars have high strength, hardenability, good toughness, small deformation during quenching, and high creep strength and durable strength at high temperatures.


Product Parameters

Product Name

AISI/SAE 4140 Alloy Steel Bar

Standard

EN/DIN/JIS/ASTM/BS/ASME/AISI, etc.

Common Round Bar Specifications

3.0-50.8 mm, Over 50.8-300mm

Flat Steel Common Specifications

6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm

Hexagon Bar Common Specifications

AF5.8mm-17mm

Square Bar Common Specifications

AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm

Length

1-6meters, Size Accept Custom

Diameter(mm)

Hot Rolling Round Bar

25-600

Cold Rolling Square Bar

6-50.8

Hot Rolling Square Bar

21-54

Cold Rolling Hexagon Bar

9.5-65

Cold Rolling Round bar

6-101.6

Forged Rebar

200-1000

Surface Process

Bright, Polished, Black

Other Services

Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.


Chemical Composition

Grade

Mn

S

C

P

Si

Cr

Ni

AISI 4140

0.75-1.00

0.035

0.38-0.43

0.035

0.20-0.35

0.8-1.1

0.15-0.25


Mechanical Properties

Grade

Tensile Strength psi

Yield Strength psi

Elongation %

Hardness HRC

AISI 4140

100k

80k

20

18-22


Product Show

碳钢棒2


Factory Tour

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Customer group photo

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Packaging And Shipping

Steel Plate Packing Process

Standard Export Seaworthy Package (Waterproof paper, and steel strip packed).Suit for all kinds of transport,or as required.Every cartons loaded with good shoring and strengthening.Use 6m loaded by 20ft container, 12m loaded by 40ft container.we will take container loading pictures and seal the container.Transportation speed is quick. And keep customer eachstep informed.

  • 运输1
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  • 包装1
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Steel Bar Packing Process

Standard Export Seaworthy Package (Waterproof paper, and steel strip packed).Suit for all kinds of transport,or as required.Every cartons loaded with good shoring and strengthening.Use 6m loaded by 20ft container, 12m loaded by 40ft container.we will take container loading pictures and seal the container.Transportation speed is quick. And keep customer eachstep informed.

  • 运输1
  • 运输2
  • 运输3
  • 运输4
  • 包装1
  • 包装2
  • 包装3
  • 包装4
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  • 包装6
  • 包装7

Steel Pipe Packing Process

Standard Export Seaworthy Package (Waterproof paper, and steel strip packed).Suit for all kinds of transport,or as required.Every cartons loaded with good shoring and strengthening.Use 6m loaded by 20ft container, 12m loaded by 40ft container.we will take container loading pictures and seal the container.Transportation speed is quick. And keep customer eachstep informed.

  • 包装1
  • 包装2
  • 包装3
  • 包装4
  • 包装5
  • 运输1
  • 运输2
  • 运输3
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  • 运输5
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Steel Coil Packaging Process

Standard Export Seaworthy Package (Waterproof paper, and steel strip packed).Suit for all kinds of transport,or as required.Every cartons loaded with good shoring and strengthening.Use 6m loaded by 20ft container, 12m loaded by 40ft container.we will take container loading pictures and seal the container.Transportation speed is quick. And keep customer eachstep informed.

  • 包装1
  • 包装2
  • 包装3
  • 包装4
  • 包装5
  • 包装6
  • 包装7
  • 运输1
  • 运输2
  • 运输3
  • 运输4
  • 运输5
  • 运输6
  • 运输7

Profiles Packaging Process

Standard Export Seaworthy Package (Waterproof paper, and steel strip packed).Suit for all kinds of transport,or as required.Every cartons loaded with good shoring and strengthening.Use 6m loaded by 20ft container, 12m loaded by 40ft container.we will take container loading pictures and seal the container.Transportation speed is quick. And keep customer eachstep informed.

  • 包装1
  • 包装2
  • 包装3
  • 包装4
  • 运输1
  • 运输2
  • 运输3
  • 运输4

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