Stainless Steel Seamless Pipe-ASTM A312 Tp321/1.4541 for Industry and Fluid Pipe

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB
• Grade: 300 Series
• Certification: ISO, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold Rolled
• Model NO.: TP321
• Surface Treatment: Pickling
• Transport Package: Plywood Case, Knitting Strips
• Origin: China
• HS Code: 7304119000
• Production Capacity: 15000tons/Year

Product Description

 

Product Description

 

GRADE 321 & GRADE 321H SPECIFICATION SHEET

Grade 321 is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C). The grade resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than grade 304 and 304L. It also possesses good low temperature toughness.

Grade 321H is the higher carbon (0.04 - 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.

Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.
 

Applications

• Aerospace - piston engine manifolds
• Chemical Processing
• Expansion Joints
• Food Processing - equipment and storage
• Petroleum Refining - polythionic acid service
• Waste Treatment - thermal oxidizers

Standards

• ASTM/ASME: UNS S32100 / S32109
• EURONORM: 321 / 1.4541
• EURONORM: 321H / 1.4878

Chemical Properties

	Cr	Ni	C	Si	Mn	P	S	N	Ti	Fe
321	min:17.0 max:19.0	min: 9.0 max:12.0	max: 0.08	max: 0.75	max: 2.0	max: 0.045	max: 0.03	max: 0.10	min:5*(C+N) max:0.70	Balance
321H	min:17.0 max:19.0	min: 9.0 max:12.0	min:0.04 max:0.10	min:18.0 max:20.0	max:2.0	max:0.045	max:0.03	max:0.10	min:5*(C+N) max:0.70	Balance

Mechanical Properties

Grade	Tensile Strength ksi (min.)	Yield Strength 0.2% Offset ksi (min.)	Elongation - % in 50 mm (min.)	Hardness (Brinell) MAX
321	75	30	40	217

Physcial Properties

Denstiy lbm/in3	Coefficient of Thermal Expansion (min/in)-°F		Thermal Conductivity BTU/hr-ft-°F	Specific Heat BTU/lbm -°F	Modules of Elasticity (annealed)2-ps
at 68 °F	at 68 - 212°F	at 68 - 1832°F	at 200°F	at 32 - 212°	in tension (E)
0.286	9.2	20.5	9.3	0.12	28 x 10-6

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. if you need. Because we know this market well

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.
 

Certifications