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439 Stainless Steel Pipe

439 stainless steel is a ferritic stainless steel with 17-20% of chromium and low carbon content. This combination gives it excellent corrosion resistance, especially in environments where chloride ions are present.

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+86 130 6369 0956

selina@jsygsteel.com

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439 Stainless Steel Pipe Description

439 stainless steel pipe is highly recognized for its corrosion resistance. This stainless steel has a high chromium content, which helps prevent rust and corrosion in both wet and dry conditions. This makes it a practical option for use in environments where moisture or chemicals are present. In addition, 439 stainless steel also has good formability and weldability as it can be easily molded into different forms or sizes without affecting its structural integrity. This makes it versatile and suitable for various manufacturing processes. However, 439 stainless steel pipes are likely to be corroded in certain environments. Contact with chloride-containing substances, such as salt water or harsh cleaners, can cause pitting and rust on the surface. 439 stainless steel pipes may not have the same level of strength and durability as many other stainless steel. While it is still a strong material, it may not perform well under heavy loads or stressful conditions.

Product Parameters

Product Name		439 Stainless Steel Pipe
Type		Steel Pipe
Outer diameter	Round Tube	4mm-200mm
	Square Tube	1010mm-100100mm
	Rectangular Tube	1020mm-50100mm
Wall Thickness		0.6mm-6.0mm
Length		1-6 meters, Length can be customized
Standard		ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface		Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc.
Scope of Application		Common applications for stainless steel pipes include food processing, Textile operations, Breweries, Water treatment plants, Oil and gas processing, Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc.
Certificate		ISO, SGS, BV, etc.
Production Technology		Hot Rolling, Cold Rolling
Edge Processing		Edging, Trimming

Chemical Composition

C	Si	Mn	Cr	S	P
≤ 0.03	≤1.0	≤1.0	17.0～19.0	≤ 0.03	≤ 0.04

Mechanical Properties

Tensile Strength Kb (MPa)	Yield Strength σ0.2 (MPa)	Elongation D5 (%)	Hardness
≥415	≥205	≥22	≤ 89HRB

Physical Performance

Density(g/cm³)	Modulus of Elasticity(Gpa)	Coefficient of Thermal Expansion(10-6/°C)	Coefficient of Thermal Conductivity(W/m*K)	Resistivity(ΜΩ. cm)
7.60	210	10.2	24.2	63

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FAQ

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Q：

How do you guarantee product quality?

A：

Our factory operates under strict QA/QC standards. Every product is inspected during production and before shipment to ensure it meets agreed quality specifications. We can provide mill test certificates and accept thirdparty inspections upon request.

Q：

What certifications do you have?

A：

Our products comply with international standards including ASTM, ASME, DIN, and EN. We also hold quality management certifications and can provide relevant documentation upon request.

Q：

Can I get samples before ordering?

A：

Yes. We can provide free samples for your evaluation. Shipping costs are typically borne by the customer. Please contact our sales team to arrange sample delivery.

Q：

What is your minimum order quantity (MOQ)?

A：

MOQ varies by product type and specification. For certain items, trial orders may be considered. Please contact us with your specific requirements for a confirmed MOQ.

Q：

What payment terms do you accept?

A：

We commonly accept T/T (30% deposit in advance, 70% balance before shipment) and L/C. Other payment terms may be negotiated depending on order value and cooperation conditions.

Q：

Do you offer discounts for large orders?

A：

Yes. We have strong capabilities for largescale project supply and offer favorable pricing for bulk orders. Our 100,000ton stock capacity allows us to provide competitive rates for volume purchases.

Q：

What is your typical lead time?

A：

For stocked products, we can deliver to the loading port within 3–7 days after receiving the deposit. For production orders, lead time is typically 15–30 days after order confirmation, depending on product type and quantity.

Q：

What shipping terms do you support?

A：

We support EXW, FOB, CIF, CFR, DDU, and other common trade terms. Shipping can be arranged by sea, air, or courier based on your requirements.

Q：

How do you package the products?

A：

We use standard export packaging suitable for sea freight. For fragile or highsurfacefinish products such as stainless steel, we apply strict protective packaging to prevent scratches and damage during transit. Custom packaging is also available upon request.

Q：

How can I become your agent?

A：

We are actively recruiting regional agents worldwide. If you are interested, please contact us with your background, market coverage, and target regions. We offer competitive agent policies and full support for your local market development.

Q：

Do you accept bulk procurement orders?

A：

Yes. Bulk procurement is one of our core business models. With over 100,000 tons of stock and a robust supply chain, we are wellequipped to handle largevolume orders for overseas projects, manufacturers, and trading companies.

Q：

Do you provide aftersales service?

A：

Yes. Our professional service team is available to address any questions regarding product quality, delivery, or usage. We are committed to providing ongoing support throughout our partnership.

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