ASTM A335 P91 Seamless Pipe is one of the seamless pipes of specification A335 in various industries. The ASME SA 335 Grade P91 Alloy Steel Pipes are made up of a chromium molybdenum alloy. These pipes have 1% molybdenum, 9% chromium and nickel, manganese, silicon and carbon in them. The ASTM A335 P91 Pipe has very high tensile strength, yield strength, impact cracking resistance, corrosion cracking resistance and oxidation resistance. The A335 P91 Chrome Pipe composition makes it possible for the material to have these high mechanical properties. The P91 steel pipe material could be either normalized and tempered or quenched and tempered during production. These methods add to the strength of the materials. Also, these pipes are drawn and seamless.

Tianjin Bao Steel Pipe CO.,LTD is a professional and experienced steel pipe supplier & exporter .Product series include: seamless steel pipe, thick-walled seamless steel pipe, medium and low pressure boiler pipe, alloy steel pipe, high pressure boiler pipe, petroleum cracking pipe, chemical fertilizer pipe, 15CrMoG alloy steel pipe, 12cr1movg alloy steel pipe, 12cr2mog alloy steel pipe, A335P91 alloy steel pipe, Q345BCDE alloy steel pipe, P9 alloy steel pipe, Cr5Mo alloy pipe, T5 alloy pipe, 1420mm diameter large diameter spiral steel pipe, 820mm diameter large diameter direct burial polyurethane hot water insulation pipe, 1600mm diameter large diameter poly jacket pipe, shot blast rust removal work steel pipe, end beveling seamless steel pipe, steel jacket steam fixed section, insulation elbow and insulation pipe fittings, insulation materials for overhead pipeline.

Specification

Technical data

P91 Nace Pipe equivalents standard

ASTM International	Fitting material	Specification	Material
A335 Gr. P91	ASTM A234 WP91	X10CrMoVNb9-1, 1.4903, NIRONIT‎	9% Chrome; 1% Moly + trace elements

Astm a335 gr p91 Pipe Chemical Composition Standard

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %	V, %	N, %	Ni, %	Al, %	Nb, %
0.08-0.12	0.3-0.6	0.02 max	0.01 max	0.2-0.5	8.0-9.5	0.85-1.05	0.18-0.25	0.03-0.07	0.4 max	0.04 max	0.06-0.10

Mechanical Analysis of P91 seamless pipe

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
585 min	415 min	20 min	250 max

FAQ

1.Q: Are you a factory or trading company?
A: We are professional manufacturer, and our company also is a very professional a trade company for steel products.We can provide a wide range of steel products.

2.Q:What do your factory do regarding quality control?
A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

3.Q: Can I get samples before order ?
A: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

4.Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them.No matter where they come from.

5.Q:what is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.

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Steel Pipe Pile Application

Feb 07, 2023

Steel pipe piles are suitable for foundations in wharf and harbor construction, and their diameters generally range from 400-2000mm, with the most commonly used at 1800mm.