Steel & Products

30crmnsia/4130/4140 Seamless Alloy Mechanical Pipe

Guangzhou Kingmetal Steel Industry Co., Ltd.
  • Technique:Hot Rolled
  • Type:Seamless
  • Warranty:10 Year
  • After-sales Service:Change
  • Material:Alloy Steel
  • Surface Treatment:Black

Base Info

  • Specification:1,8-24"NB
  • Transport Package:Hex. Bundles
  • Inspection:Et,Ut,PMI,Dimension or Custom
  • Technical:Cold Rolled, Cold Drawn, Hot Rolled
  • Surface:Anti-Corrosion Oil or Custom
  • Length:3.5m, 4m,5m,6m,11.8m
  • Section Shape:Round
  • Usage:Hydraulic,Automobile Pipe
  • Model NO.:DN50
  • Trademark:KM,OEM
  • Origin:China
  • Production Capacity:100 Ton,Month

Description

Grade

C

Si

Mn

P

S

Cr

30Χ /
30CrMnSiA

0.28-0.34

0.90-1.20

0.80-1.10

≤0.025

≤0.025

0.80-1.10

Mechanical Properties:

Grade

Tensile strength(MPa)

Yield point (MPa)

Length of elongation(%)

Hardness

30Χ /
30CrMnSiA

≥1080

≥800

≥10

≤229

Applications:
It's used to make parts that are wear-resistant, low temperature, and variable load, such as the vane, valve plate and non-corrosive pipe of the high pressure blower.

 

Heat treatment


Quenching heating temperature : 880ºC; Coolant: oil
Tempering temperature  : 520ºC; Coolant: water, oil

  

Package

 

1. Bundle Packing.

2. Plain end or vanished as per customer's request.

 

Quality Assurance, Below inspection will be done in the production.

(1) ray detection---RT;

(2) ultrasonic testing---UT;

(3) Magnetic Particle Testing-MT;

(4) penetration testing-PT;

(5) eddy current flaw detection-ET


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