316L MOD/316L UG / 724L / 1.4435 seamless stainless urea pipe

Short Description:

Urea grade 316L/724L/1.4435 stainless steel pipe specially used for Urea Industry



Product Detail

Product Tags

Production Description:
Standard:ASTM SA-240/SA-213
Grade:316L MOD 724L 1.4435
Size Range:φ10~φ1016*0.2~120mm
Tolerance:ASTM A312
Length:As request
MTC:EN 10204/3.1

316LMOD is urea grade stainless steel 724L/1.4435.

Urea steel and 316Lmod are stainless steels developed for urea production on the basis of 316L

Additional restrictions have been placed on the minimum content of Cr, Ni, and Mo; The purpose is to make stainless steel undergo

final heat treatment. After obtaining a fully austenitic structure, the ferrite content should not exceed 0.6%, while also exhibiting a

tendency towards intergranular corrosion. Requirements have been proposed for testing and selective corrosion.

Chemical Compostion:
GradeCompsition Chemical (Max %)
CSiMnPSCrNiMoNFe
316L MOD≤0.03≤1.000≤2.00≤0.04≤0.03017-18.513-152.2-3≤0.22≤0.6

Mechanical Properties:

Temperature20° C50° C100° C150° C200° C250° C300° C350° C400° C
TS (Mpa)485470450430415410400395390
YS (Mpa) 0.2%190180165150140130120115110
YS (Mpa) 1%225200180165155145140135

Description and Application: 

316l mod is modified 316l, an improved 316l, which is specially used in the urea industry, so it is called urea grade 316l.

The main difference from 316l is the chemical composition. The purpose of adjusting the composition is to fully suppress

the ferrite content in the steel and obtain a full austenite structure as much as possible, so as to improve the intergranular

corrosion resistance and selective corrosion resistance of the steel. Both urea grade stainless steels are subject to Hugh’s

test and selective corrosion test. The test conditions are very harsh, and it is difficult for ordinary stainless steel to pass.

The chemical composition of 316mod and 316l is not very different. 316mod must pass the Huey test. During the 48-hour

boiling corrosion test, the corrosion value of 5 samples is not less than 0.54gr/m2hr (3.3 microns/48 hours). 

 

Production Show:

3

Package:

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Quality Control:

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Our Service:

01

RFQ:

Q1: Are you manufacture or Trader

A: We are both manufacture and trader

Q2: Can you offer sample?

A: Sample small one can be offered by free, but buyer should pay the express fee

Q3: Can you offer processing service?

A: We can offer cutting, drilling, painting, coat powder etc…

Q4: What is your advantage on steel?

A: We can customize steel structure accoridng to buy’s drawings or request.

Q5: How about your logistic service?

A: we have professional logistic team who has rich experience on shipping, can offer the steady and quality ship line.


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