P540 Nonmagnetic Steel Seamless Pipe

• Type: Stainless Steel Bars
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 500 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold Rolled
• Model NO.: P540 Nonmagnetic Steel
• Surface Treatment: Bright
• Transport Package: Full
• Specification: Customized
• Trademark: Shanshui
• Origin: Liaocheng
• HS Code: 7201500010
• Production Capacity: 5000 Tons/Year

Product Description

1. CHEMICAL COMPOSITION

P540 is a special nonmagnetic, austenitic Mn-Cr-N-steel with a nitrogen content of ≤ 2%.

C	Mn	Cr	Mo	N	Ni
max. 0,05	19,00 - 21,00	17,00 - 19,50	0,30 - 0,80	min. 0,50	0,80 - 2,00

2. MECHANICAL PROPERTIES

Following mechanical properties (tested at room temperature) are achieved by a special cold-working process over the full length of the collar:

TEXT	OD	KSI	N/MM
Yield Strength (min.) 0,2%-offset method:	OD up to 9 1/4"	120 ksi	830 N/mm²
	OD 9 1/2" and larger	110 ksi	760 N/mm²
Tensile Strength (min.):		130 ksi	900 N/mm²
Elongation (min.):		0.2	0.2
Reduction of area (min.):		0.5	0.5
Impact energy (min.):		90 ft.lb	122 J
Endurance Strength / N=10 (min.):		± 65 ksi	± 455 N/mm²
Hardness Brinell: (min.):		285-400 HB	285-400 HB

 

3. MAGNETIC PROPERTIES

Relative permeability: ≤ 1,005.

 

4. CORROSION RESISTANCE

• Transgranular SCC: Prevented by special surface treatments (Hammer peening, roller burnishing, shot peening).
• Intergranular SCC: The occurrence of material sensitization is prevented by quenching after warmforging. Each collar is tested according to ASTM A 262, Pract.A and E, last edition.
• Pitting Corrosion: Due to a high chromium- and nitrogen content a high resistance to pitting corrosion is given.

 

5. NON-DESTRUCTIVE TESTING

• Magnetic inspection: Drill collars are 100% tested by a proprietary probe-testing process using a Förster Magnetomat 1.782. ("Hot Spot"-test). Magnetic permeability of each collar is certified with the printout of probe-testing.
• Ultrasonic inspection: Each collar is ultrasonically inspected over 100% of the volume according to ASTM E 114, last edition as a minimum level.