253mA/S30815/1.4835/X9crnisince21-11-2 Seamless Stainless Steel Tube for Pyrolysis Vessels

• Customization: Available
• After-sales Service: Answer Within 24hrs
• Warranty: 30days
• Model NO.: 253SMA
• Type: Seamless
• Technique: Cold Drawn
• Material: Stainless Steel
• Surface Treatment: Polished
• Section Shape: Round
• Length: 0.5~30 Mtr
• Standard: GB/ASTM/ASME/DIN/En/GOST/JIS/PED
• Tolerance: According to ASTM A312, ASTM A213, ASTM A269,999
• Wall Thickness: 0.5~65 mm
• Goods Description: Stainless Steel Industrial Seamless Pipe
• Pipe Marking: Xintongda or Customized
• Suface Treatment: Pickling , No.1, 2b, Polish, Hairline, No.4,Sandbl
• Certification: GOST,ISO9001-2015,Ad2000,PED 2014/68/EU,BV Mode II
• Transport Package: Packed by Knitting Strips in Bundles
• Specification: Per ANSIB36.10, B36.19M
• Trademark: xintongda
• Origin: China
• HS Code: 7304111000
• Production Capacity: 2000metric Tons Per Month

Product Description

253MA/S30815/1.4835/X9CrNiSiNCe21-11-2 SEAMLESS STAINLESS STEEL PIPE AND TUBE

Product Description

Material Summary

Despite its lean nickel content, 253 MA offers an outstanding combination of creep strength and high resistance to oxidation, sulphidation and erosion/abrasion at extremely high temperatures. This makes the alloy more economical than most heat resistant alloys.
The high heat resistant properties of 253 MA are obtained by the tight control of micro alloy additions. Whilst the benefit of creep rupture strength is down to the combination of nitrogen, carbon and cerium, its superior oxidation resistance is a result of the combination of cerium and silicon.
Its strength at these temperatures is higher than that of alternatives such as Grade 310.
 

Product Parameters

Chemical Composition

Cr	Ni	C	Si	Mn	P	S	N	Ce	Fe
20.0-22.0	10.0-12.0	0.05-0.10	1.40-2.00	≤0.08	≤0.04	≤0.03	0.14-0.20	0.03-0.08	Balance

ote:

1.Element shall be determined arithmetically by difference.

Mechanical Properties

Grade	Tensile Strength ksi(MPa)	Yield Strength ksi(MPa)	Elongation in 2", %	Hardness Brinell	Hardness Rockwell
253SMA	≥87(600)	≥45(310)	≥40	≤217HBW	≤95HRB

 

Applications

• Pyrolysis Vessels
• Boiler Nozzles
• Corrugated Boxes
• Cyclones
• Bar Baskets
• Radiant Tubes
• Combustion chambers

Detailed Photos

Packaging & Shipping

1.generally export packing

   -packed by knitting strips in bundles

2.It is suggested that the pipes OD under 25MM or Less than container shipment are packed by plywood cases, which can protect pipes better.

Certifications

GOST,ISO9001-2015,AD2000,PED 2014/68/EU,BV Mode II,ISO45001-2018 Certificates.

FAQ

Are you a factory or a trading company?

We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc.

Do you have any certificate?

We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.

What is your delivery time?

It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.

What is your payment terms?

Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.

How can you guarantee the quality of my goods?

All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.

How do you make our business long-term and good relationship?

1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.